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	<title>Cyrusreza's Weblog</title>
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		<title>Cyrusreza's Weblog</title>
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		<title>Vlan with DHCP</title>
		<link>http://cyrusreza.wordpress.com/2011/09/29/vlan-with-dhcp/</link>
		<comments>http://cyrusreza.wordpress.com/2011/09/29/vlan-with-dhcp/#comments</comments>
		<pubDate>Thu, 29 Sep 2011 16:26:58 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[IT Network]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=26</guid>
		<description><![CDATA[I want to share my experience when i had to divide my network into Vlan. I used Win 2003 as DHCP Server and Cisco device to manage Vlan. firstly i created IP address scope for each Vlan, then i created Vlan in Ciso device. so what&#8217;s happened ? Clients at each Vlan couldn&#8217;t get IP [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=26&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>I want to share my experience when i had to divide my network into Vlan. I used Win 2003 as DHCP Server and Cisco device to manage Vlan. firstly i created IP address scope for each Vlan, then i created Vlan in Ciso device. so what&#8217;s happened ? Clients at each Vlan couldn&#8217;t get IP addresses via DHCP server. Many ways i tried to solve this trouble but still had no result. Fortunately i tried to erase all my configuration in my DHCP server and my cisco switch, then i created the Vlan first then i created DHCP scope in Win 2003. Finally all clients could get ip address. I can&#8217;t explain this case technically, but i think Vlan must be defined first  then followed by IP address we will give into Vlan. Mmmhhh&#8230;maybe my explanation doesn&#8217;t satisfy you. When we meet the trouble, sometimes we don&#8217;t need many explanations..what we need just to solve the trouble. And trust me what i wrote above was really work ! ;D</p>
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		<title>Konfigursasi DNS Pada FreeBSD (Bag 1 )</title>
		<link>http://cyrusreza.wordpress.com/2008/03/25/konfigursasi-dns-pada-freebsd-bag-1/</link>
		<comments>http://cyrusreza.wordpress.com/2008/03/25/konfigursasi-dns-pada-freebsd-bag-1/#comments</comments>
		<pubDate>Tue, 25 Mar 2008 09:46:54 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[IT Network]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=13</guid>
		<description><![CDATA[Bekerja dengan BIND ( named.conf ) Untuk membuat name server kita bekerja optimal, maka kita harus memastikan bahwa name server yang kita buat bisa bekerja dengan baik dengan klien yang ada pada topologi jaringan kita, dan name server dari topologi jaringan lain. Kesalahan konfigurasi pada name server dapat mengakibatkan “membanjirnya” trafik antara server kita dan [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=13&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p class="MsoNormal"><span style="font-size:12pt;color:windowtext;">Bekerja dengan BIND ( named.conf ) </span></p>
<p class="MsoNormal" style="text-align:center;" align="center"><span style="font-size:12pt;color:windowtext;"> </span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:12pt;line-height:150%;color:windowtext;"><span>            </span></span><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Untuk membuat name server kita bekerja optimal, maka kita harus memastikan bahwa name server yang kita buat bisa bekerja dengan baik dengan klien yang ada pada topologi jaringan kita, dan name server dari topologi jaringan lain. Kesalahan konfigurasi pada name server dapat mengakibatkan “membanjirnya” trafik<span>  </span>antara server kita dan root server selama proses sinkronisasi. Konfigurasi name server berada pada file <b>named.conf</b> yang ada dalam direktori <b>/etc/namedb</b>, kita harus benar – benar memahami apa yang kita perintahkan di dalam file ini.</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"> </span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><i><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Perhatian : Agar menjadi sebuah kebiasaan dari sekarang untuk mem-backup file named.conf<span>  </span>dengan nama / ekstensi yang berbeda, misalnya mv named.conf named.conf.asli atau cp named.conf /home</span></i></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"> </span></p>
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"><span style="font-size:9pt;line-height:150%;font-family:Arial;color:windowtext;">Berikut adalah contoh script sederhana pada file named.conf :<br />
</span></p>
<pre><span style="font-size:9pt;"></span><span style="font-size:9pt;"></span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">options {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">directory "/etc/namedb";</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">};</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;"> </span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">zone "example.com" {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">type master;</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">file "master/example.com";</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">};</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;"> </span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">zone "131.41.64.in-addr.arpa" {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">type master;</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">file "master/131.41.64.in-addr.arpa";</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">};</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;"> </span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">zone "elsewhere.com" {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">type slave;</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">file "slave/elsewhere.com";</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">masters { 113.125.2.145; };</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">};</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;"> </span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">zone "." {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">type hint;</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">file "named.root";</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">};</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;"> </span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">zone "0.0.127.in-addr.arpa" {</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">type master;</span></pre>
<pre style="text-align:center;"><span style="font-size:9pt;">file "master/localhost.rev";</span></pre>
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"><span style="font-size:9pt;line-height:150%;font-family:Arial;color:windowtext;">} ;</span></p>
<pre></pre>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:9pt;line-height:150%;font-family:Arial;color:windowtext;"><span>                </span></span><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Seperti terlihat di atas, konfigurasi file terdiri dari beberapa blok (statement) dalam syntax bahasa C, dan setiap statement diawali dan diakhiri dengan tanda ( { } ) . Komentar dalam name.conf juga dibuat dalam syntax bahasa C. Komentar tunggal ditandai dengan<span>  </span>( // ) sedangkan komentar dalam blok ditandai dengan ( /* komentar */ )</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"> </span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><b><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Menggunakan Forwader</span></b></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><b><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"> </span></b></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><b><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"><span>            </span></span></b><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Forwarder bisa dikatakan name server pada “upstream” yang biasanya mempunyai topologi network lebih besar, dekat pada root server dan mengijinkan kita untuk meminta informasi DNS darinya. Kandidat terbaik yang digunakan sebagai forwader adalah name server ISP yang kita gunakan.</span></p>
<p class="MsoNormal" style="text-align:justify;text-indent:36pt;line-height:150%;"><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Menggunakan forwader, sebenarnya berguna sebagai cache name server yang mana bersifat non-authoritative ( tidak langsung memegang kendali dalam suatu zona ). Kelemahan dalam pemakaian authoritative name server adalah, ketika mesin FreeBSD kita berfungsi sebagai name server, normalnya, jika mesin kita tidak bisa menjawab <span> </span>permintaan DNS dari jaringan lokal kita, pastinya permintaan akan dilemparkan kepada root server yang berada pada (etc/namedb/named.root) untuk mendapatkan<span>  </span>balasan dari server authoritative (yang langsung memegang kendali suatu zona). Karena hal tersebut, maka akan menggunakan langkah – langkah yang banyak memakan waktu untuk menambahkan trafik paket pada jaringan.</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;"> </span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><i><span style="font-size:12pt;line-height:150%;font-family:Arial;color:windowtext;">Info : “Kebanjiran” trafik DNS biasanya terjadi karena konfigurasi yang tidak benar pada name server dan tidak memanfaatkan nonauthoritative name server sebagai cache name server. Misalnya, ketika sebuah authoritative dipakai sebagai name server untuk jaringan lokalnya dalam link ber-bandwidth kecil, maka setiap host di internet akan meminta query <span> </span>DNS secara langsung, jika permintaan semakin banyak, maka overload tak bisa dihindarkan.</span></i></p>
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		<title>Sekilas FTP &amp; HTTP</title>
		<link>http://cyrusreza.wordpress.com/2008/03/24/sekilas-ftp-vs-http/</link>
		<comments>http://cyrusreza.wordpress.com/2008/03/24/sekilas-ftp-vs-http/#comments</comments>
		<pubDate>Mon, 24 Mar 2008 03:28:48 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[IT Network]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=12</guid>
		<description><![CDATA[    FTP dan HTTP sekilas terlihat sama, keduanya merupakan protokol transfer file yang biasa digunakan untuk pertukaran file melalui web atau file – file multimedia besar yang di link melalui http:// atau ftp:// pada URL kita. . Sebenarnya, baik ftp maupun http didesain untuk tujuan yang berbeda, maka dari itu keduanya juga memiliki fitur [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=12&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><span id="more-12"></span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"> </p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Comic Sans MS';color:windowtext;">FTP dan HTTP sekilas terlihat sama, keduanya merupakan protokol transfer file yang biasa digunakan untuk pertukaran file melalui web atau file – file multimedia besar yang di link melalui http:// atau ftp:// pada URL kita. . Sebenarnya, baik ftp maupun http didesain untuk tujuan yang berbeda, maka dari itu keduanya juga memiliki fitur dan kemampuan yang berbeda.</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Comic Sans MS';color:windowtext;">Berikut adalah perbedaannya :</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
<table class="MsoTableGrid" style="border:medium none;margin-left:23.4pt;border-collapse:collapse;" border="1" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td style="background:silver 0 50%;width:180pt;border:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"><strong><span style="font-size:12pt;line-height:150%;font-family:'Courier New';color:windowtext;">FITUR</span></strong></p>
</td>
<td style="border-right:windowtext 1pt solid;border-top:windowtext 1pt solid;background:silver 0 50%;border-left:#000000;width:108pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"><strong><span style="font-size:12pt;line-height:150%;font-family:'Courier New';color:windowtext;">FTP</span></strong></p>
</td>
<td style="border-right:windowtext 1pt solid;border-top:windowtext 1pt solid;background:silver 0 50%;border-left:#000000;width:108pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:center;line-height:150%;" align="center"><strong><span style="font-size:12pt;line-height:150%;font-family:'Courier New';color:windowtext;">HTTP</span></strong></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Membutukan autentikasi user</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">YA/tidak</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Ya/tidak</span></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">File yang dipakai</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">File-file besar</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Teks file </span></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Model Koneksi</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Dual koneksi</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Singel Koneksi</span></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Download/Upload</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Keduanya</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Download saja</span></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Support Web Content</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Tidak</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Ya</span></p>
</td>
</tr>
<tr>
<td style="border-right:windowtext 1pt solid;border-top:#000000;background:#f3f3f3 0 50%;border-left:windowtext 1pt solid;width:180pt;border-bottom:windowtext 1pt solid;padding:0 5.4pt;" width="240" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Operation File sistem</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Ya</span></p>
</td>
<td style="border-right:1pt solid;border-top:medium none;background:white 0 50%;border-left:medium none;width:108pt;border-bottom:1pt solid;padding:0 5.4pt;" width="144" valign="top">
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Courier New';color:windowtext;">Tidak</span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Comic Sans MS';color:windowtext;">Perbedaan terbesar keduanya adalah, bahwa FTP <strong><em>session based, </em></strong>yang berarti koneksi dimasukkan secara lengkap antara klien dan server, sekumpulan perintah dikirimkan,<span> </span>dikumpulkan dan akhirnya klien mengakhiri koneksi sesuai dengan pilihannya. Sesi FTP yang lengkap berisi dual koneksi, untuk mengirimkan perintah dan status pesan ( sebagai control koneksi), sementara yang lain meng-handle file yang sedang ditransfer ( koneksi data ).</span></p>
<p class="MsoNormal" style="text-align:justify;text-indent:36pt;line-height:150%;"><span style="font-family:'Comic Sans MS';color:windowtext;">FTP klien membuka koneksi control melalui TCP port 21 pada FTP server, kemudian koneksi terbuka di seluruh sesi. Ketika klien memasukkan perintah seperti ls atau get, klien dan server menegosiasikan port – port TCP antara koneksi data yang akan mereka buka, yang mana akan selalu ada selama file sedang ditransfer. Koneksi data terpisah terbuka untuk setiap sesi transfer. Untuk jelasnya, bisa kita lihat list berikut :</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
<pre style="text-align:center;"># <span class="docemphstrong">ftp file.ujicoba.com</span></pre>
<pre style="text-align:center;">Connected to file.ujicoba.com.</pre>
<pre style="text-align:center;">220 file.ujicoba.com FTP server (Version 6.00LS) ready.</pre>
<pre style="text-align:center;">Name (file.ujicoba.com:komeng):</pre>
<pre style="text-align:center;">331 Password required for komeng.</pre>
<pre style="text-align:center;">Password:</pre>
<pre style="text-align:center;">230 User komeng logged in.</pre>
<pre style="text-align:center;">Remote system type is UNIX.</pre>
<pre style="text-align:center;">Using binary mode to transfer files.</pre>
<pre style="text-align:center;">ftp&gt; <span class="docemphstrong">cd direktoriku</span></pre>
<pre style="text-align:center;">250 CWD command successful.</pre>
<pre style="text-align:center;">ftp&gt; <span class="docemphstrong">ls</span></pre>
<pre style="text-align:center;">150 Opening ASCII mode data connection for '/bin/ls'.</pre>
<pre style="text-align:center;">total 484</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng<span>   </span>43175 Apr<span>  </span>8 01:14 addresses.txt</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng<span>  </span>100523 Apr<span>  </span>8 01:14 contents.html</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng<span>   </span>37864 Apr<span>  </span>8 01:14 directions</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komen<span>  </span>komeng<span>   </span>37308 Apr<span>  </span>8 01:14 lk_logo.gif</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng<span>  </span>52427 <span> </span>Apr <span> </span>8 01:1 <span> </span>picture2.gif</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng <span> </span>18648 <span> </span>Apr 24 13:4 <span> </span>picture2.jpg</pre>
<pre style="text-align:center;">-rw-r--r--<span>  </span>1 komeng komeng<span>  </span>175325 Apr<span>  </span>8 01:14 resume.html</pre>
<pre style="text-align:center;">226 Transfer complete.</pre>
<pre style="text-align:center;">ftp&gt; <span class="docemphstrong">get picture2.gif</span></pre>
<pre style="text-align:center;">local: picture2.gif remote: picture2.gif</pre>
<pre style="text-align:center;">150 Opening BINARY mode data connection for 'picture2.gif' (52427 bytes).</pre>
<pre style="text-align:center;">100% |**************************************************| 52427<span>       </span>00:00 ETA</pre>
<pre style="text-align:center;">226 Transfer complete.</pre>
<pre style="text-align:center;">52427 bytes received in 4.99 seconds (10.25 KB/s)</pre>
<pre style="text-align:center;">ftp&gt; <span class="docemphstrong">quit</span></pre>
<pre style="text-align:center;">221 Goodbye.</pre>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"><span style="font-family:'Comic Sans MS';color:windowtext;">Koneksi yang pertama dilakukan adalah proses autentikasi yaitu dengan mengisikan username dam password, seperti halnya kita masuk kedalam koneksi telnet atau ssh. Sama dengan telnet, autentikasi user FTP biasanya beroperasi langsung pada informasi akun user pada mesin FTP server yang sedang berjalan. Proses autentikasi membedakannya dari autentikasi user HTTP, yang mana menggunakan apache database.</span></p>
<p class="MsoNormal" style="text-align:justify;line-height:150%;"> </p>
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		<title>Routing Information Protocol (RIP) Introduction</title>
		<link>http://cyrusreza.wordpress.com/2008/03/13/routing-information-protocol-rip-introduction/</link>
		<comments>http://cyrusreza.wordpress.com/2008/03/13/routing-information-protocol-rip-introduction/#comments</comments>
		<pubDate>Thu, 13 Mar 2008 06:09:09 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[IT Network]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=9</guid>
		<description><![CDATA[RIP merupakan Interior Gateway Protocol yang didefinisikan dalam RFC ( Request For Comments ) 1058, adalah routing protocol yang paling diterima secara luas. Pada mulanya RIP adalah program routed UNIX daemon, yang mana didesain di U.C Barkeley Untuk menyediakan routing yang konsisten dan Penyampaian informasi diantara mesin &#8211; mesin pada Local Area Network. RIP menjadi [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=9&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>    RIP merupakan  Interior Gateway Protocol yang didefinisikan dalam RFC ( <i>Request For Comments ) </i>1058, adalah routing protocol yang paling diterima secara luas. Pada mulanya RIP adalah program routed UNIX daemon, yang mana didesain di U.C Barkeley Untuk menyediakan routing yang konsisten dan Penyampaian informasi diantara mesin &#8211; mesin pada Local Area Network. RIP menjadi populer bukan karena kehandalannya, tapi mungkin dikarenakan U.C Barkeley mendistribusikannya  bersama dengan sistem 4. BSD UNIX mereka yang populer. Karena itu kemudian banyak situs internet mengadopsi dan memakai RIP tanpa mempertimbangkan kehandalan dan keterbatasannya. Sekali diimplementasikan dan berjalan, RIP menjadi basis untuk lokal routing.</p>
<p>RIP mem-broadcast seluruh update routing tabelnya secara periodik ( defaultnya setiap 30 detik ), dalam mencapai network tujuannya RIP mencatat setiap  network ( router )  yang dilalui sebagai hop. RIP dikenal juga sebagai distance-vector routing algorithm yang berarti menggunakan distance ( jarak ) sebagai cost ( digunakan dalam metric routing protocol untuk menentukan jalur terbaik menuju network tujuan ) dan vector ( arah ) untuk mencapai  network tujuan. Vector hanya menunjukkan arah pada router yang &#8221; bertetangga&#8221;, tidak seluruh jalur network yang ada .</p>
<p>RIP akan bekerja baik hanya pada network berskala kecil, stabil dan berkecepatan tinggi. Karena metric yang dipakai hanya mengandalkan jarak, jarak terpendeklah yang akan dipakai sebagai jalur route, tidak ada parameter lain seperti speed link ataupun delay dari interface suatu perangkat ( router ). RIP akan memilih route dengan jarak ke tujuannya adalah  3 hop dengan kecepatan 56Kbps daripada route dengan jarak ke tujuannya adalah 4 hop dengan kecepatan 512Kbps. Selain itu, karena RIP mem-broadcast seluruh routing tabelnya secara periodik hanya kepada network yang &#8220;bertetangga&#8221; langsung, ini menyebabkan lambatnya informasi routing tabel yang telah diupdate sampai kepada network yang tidak bertetangga langsung ( network yang sudah melalui banyak hop ) sehingga nilainya sudah tidak lagi valid.</p>
<p>Karena dinilai lambat dalam pengumpulan informasi update routing tabel dalam topologi jaringan ( Network Convergence ), hop dalam RIP dibatasi hanya sampai 15, selain itu RIP juga sangat rawan akan terjadinya routing loop. Untuk menangani kekurangannya, maka RIP memberlakukan hal &#8211; hal berikut :</p>
<p><b>Route Poisoning     : </b>Digunakan untuk mengindikasikan  pada router &#8211; router lain ( &#8220;tanda diracuni&#8221; ) bahwa sebuah                                                    router                                        sudah tidak terjangkau ( lebih dari 15 hop ) dan harus dihapus dari routing tabel mereka.</p>
<p><b>Split Horizon          :  </b>Interface router tidak akan mengirimkan informasi update routing tabel kepada interface router                                                yang                                      telah  mengirimkan update routing tabel yang sama. Artinya, tidak beguna memberikan                                                            informasi kepada                              pemberi informasi.</p>
<p><b>Hold Down Timer : </b>Metode yang digunakan untuk mengantisipasi keadaan network yang tidak stabil, yang                                                              disebabkan                                          oleh penyebaran informasi update routing tabel yang belum tentu kevalidan nilainya.                                              Dengan kata                                          lain, hold down akan menjaga sebuah router dalam mengumumkan perubahan                                                      routing tabelnya                                                  sampai kondisi network stabil dan sebuah interface benar &#8211; benar sudah                                                          mendapatkan route terbaik.                                      Untuk menunggu keadaan network stabil, dibutuhkan parameter                                                  waktu yang bisa di-set.Ketika                                                  router mendeteksi perubahan network, hold down timer dimulai,                                              router akan menunggu kestabilan                                          network berdasarkan hold down timer yang telah ditentukan.                                              Ketika waktu yang ditentukan telah                                          habis, router baru menginformasikan update routing                                                          tabelnya.</p>
<p>RIP tidak bisa membaca subnet dalam pengalamatannya, RIP hanya bisa membaca Classfull address, artinya dia hanya mengerti pengalamatan berdasarkan kelas address dengan subnetmask default.</p>
<p>- Kelas A ( 0 &#8211; 126 ) subnet mask 255.0.0.0</p>
<p>- KelasB ( 128 &#8211; 191 ) subnet mask 255.255.0.0</p>
<p>- Kelas C ( 192 &#8211; 223 ) subnet mask 255.255.255.0</p>
<p>RIP tidak dilengkapi perbekalan untuk bertukar informasi subnet antar router, network kita dan network tujuan sebaiknya  memliki subnet mask  yang sama agar RIP dapat mengirimkan paket IP di seluruh network kita, jika tidak RIP akan kesulitan untuk menentukan yang mana alamat network dan yang mana alamat host karena RIP tidak mampu secara dinamis mengupdate atau merubah subnet mask.</p>
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		<title>Classless Inter-Domain Routing ( CIDR )</title>
		<link>http://cyrusreza.wordpress.com/2008/03/10/classless-inter-domain-routing-cidr/</link>
		<comments>http://cyrusreza.wordpress.com/2008/03/10/classless-inter-domain-routing-cidr/#comments</comments>
		<pubDate>Mon, 10 Mar 2008 04:25:19 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[IT Network]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=7</guid>
		<description><![CDATA[CIDR pada dasarnya adalah metode yang digunakan ISP ( Internet Service Provider ) untuk mengalokasikan sejumlah alamat pada sebuah perusahaan atau rumah pelanggan. ISP menyediakan alamat dalam ukuran blok tertentu dengan lambang / ( garis miring ). Ketika kita menerima sebuah blok alamat dari sebuah ISP, misalkan kita diberi alamat seperti 202.22.34.16/29. Maksud dari /29 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=7&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>CIDR pada dasarnya adalah metode yang digunakan ISP ( Internet Service Provider ) untuk mengalokasikan sejumlah alamat pada sebuah perusahaan atau rumah pelanggan. ISP menyediakan alamat dalam ukuran blok tertentu dengan lambang / ( garis miring ).</p>
<p class="Paragraf1" style="margin-left:1.25in;">Ketika kita menerima sebuah blok alamat dari sebuah ISP,<span>  </span>misalkan kita diberi alamat seperti <b>202.22.34.16/29</b>. Maksud dari <b>/29</b> adalah, jumlah bit yang bernilai 1 yang berarti network yang kita dapat memiliki 29 bit bernilai 1.</p>
<p class="Paragraf1"><span style="font-family:'Courier New';"><b>Tabel  Subnet Mask Dengan CIDR</b></span></p>
<table class="MsoTableGrid" style="border:medium none;margin-left:59.4pt;border-collapse:collapse;" border="1" cellpadding="0" cellspacing="0">
<tr>
<td style="border:1pt solid windowtext;background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>Subnet Mask</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>Nilai CIDR</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.0.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/8</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.128.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/9</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.192.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/10</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.224.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/11</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.240.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/12</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.248.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/13</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.252.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/14</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.254.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/15</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.0.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/16</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.128.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/17</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.192.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/18</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.224.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/19</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.240.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/20</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.248.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/21</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.252.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/22</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.254.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/23</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.255.0</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/24</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.255.128</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/25</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.255.192</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/26</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>255.255.255.224</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;" align="center"><b>/27</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" align="center" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;"><b>255.255.255.240</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" align="center" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;"><b>/28</b></p>
</td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" align="center" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;"><b>255.255.255.248</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" align="center" valign="top" width="157"><b>/29<br />
</b></td>
</tr>
<tr>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:124.9pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" align="center" valign="top" width="167">
<p class="Paragraf1" style="margin-left:0;"><b>255.255.255.52</b></p>
</td>
<td style="background:#f3f3f3 none repeat scroll 0 50%;width:118.1pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" align="center" valign="top" width="157">
<p class="Paragraf1" style="margin-left:0;text-align:center;"><b>/30</b></p>
</td>
</tr>
</table>
<p class="MsoNormal"><span> </span></p>
<h3><span>CIDR ( subnetting<span>  </span>) Pada Kelas A</span></h3>
<p class="Paragraf1" style="margin-left:1.25in;">Kita memiliki IP kelas A, yaitu <b>75.0.0.0</b> dengan subnet<span>  </span><b>255.240.0.0<span>  </span>( /12 )</b> , kita akan menentukan alamat host dan network yang valid pada tabel berikut :</p>
<p class="Paragraf1"><span style="font-family:'Courier New';"><b>Tabel Contoh CIDR Kelas A</b></span></p>
<table class="MsoTableGrid" style="border:medium none;background:#f3f3f3 none repeat scroll 0 50%;margin-left:0.2in;border-collapse:collapse;" border="1" cellpadding="0" cellspacing="0">
<tr>
<td style="border:1pt solid windowtext;background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">Subnet</span></b></p>
</td>
<td style="width:65.65pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.16.0.0</span></b></p>
</td>
<td style="width:1in;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.32.0.0</span></b></p>
</td>
<td style="width:69.2pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.48.0.0</span></b></p>
</td>
<td style="width:20.8pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">&#8230;..</span></b></p>
</td>
<td style="width:1in;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.224.0.0</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">Host Pertama</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.16.0.1</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.32.0.1</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.48.0.1</span></b></p>
</td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.224.0.1</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">host Terakhir</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.31.255.254</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.47.255.254</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.63.255.254</span></b></p>
</td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.239.255.254</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;font-family:'Franklin Gothic Medium';">Broadcast</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.31.255.255</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.47.255.255</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.63.255.255</span></b></p>
</td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">75.239.255.255</span></b></p>
</td>
</tr>
</table>
<p class="Paragraf1">&nbsp;</p>
<p class="Paragraf1" style="margin-left:1.25in;">Pada Tabel di atas alamat network yang digunakan<span>  </span>adalah kelipatan <b>16,</b> didapat dari <b>256 – 240</b>. Dengan subnet <b>/12</b> kita memiliki <b>2 <sup>4 </sup>– 2</b> atau <b>14 </b>alamat network dan <b>2 <sup>20</sup> – 2</b> atau <b>1048574</b> alamat host.</p>
<h3><span>CIDR ( subnetting ) Pada Kelas B </span></h3>
<p class="Paragraf1" style="margin-left:1.25in;">Kita memiliki<span>  </span>IP kelas B, yaitu <b>140</b>.<b>20.0 0</b><b> </b>dengan subnet <b>255.255.192.0 (<span>  </span>/ 18 )</b>, kita akan menentukan alamat host dan network yang valid pada tabel berikut :</p>
<p class="Paragraf1"><b><span style="font-family:'Courier New';">Tabel Contoh CIDR Kelas B</span></b></p>
<table class="MsoTableGrid" style="border:medium none;background:#f3f3f3 none repeat scroll 0 50%;margin-left:77.55pt;border-collapse:collapse;" border="1" cellpadding="0" cellspacing="0">
<tr>
<td style="border:1pt solid windowtext;background:#e0e0e0 none repeat scroll 0 50%;width:62.85pt;padding:0 5.4pt;" valign="top" width="84">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">Subnet</span></b></p>
</td>
<td style="width:81pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.64.0</span></b></p>
</td>
<td style="width:81pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.128.0</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:62.85pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="84">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">Host Pertama</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.64.1</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.128.1</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:62.85pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="84">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;"><span> </span>Host Terakhir</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.127.254</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.191.254</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:62.85pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="84">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;font-family:'Franklin Gothic Medium';">Broadcast</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.127.255</span></b></p>
</td>
<td style="width:81pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="108">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:9pt;">140.20.191.255</span></b></p>
</td>
</tr>
</table>
<p class="Paragraf1">&nbsp;</p>
<p class="Paragraf1" style="margin-left:1.25in;">Pada tabel kelas B tadi alamat network yang digunakan adalah kelipatan <b>64</b>, didapat dari <b>256 – 192</b>. Dengan subnet <b>/18 </b>kita memiliki <b>2 <sup>2 </sup>– 2</b> atau <b><sup></sup>  2</b> alamat network dan <b>2<sup>14 </sup></b><b>- 2</b>  atau <b>16382</b> alamat host.</p>
<h3><span>CIDR ( subnetting ) Pada Kelas C</span></h3>
<p class="Paragraf1" style="margin-left:1.25in;">Kita memiliki<span>  </span>IP kelas C, yaitu <b>202.67.33.0</b> dengan subnet <b>255.255.255.248 ( /29 )</b>, kita akan menentukan alamat host dan network yang valid pada tabel berikut :</p>
<p class="Paragraf1"><span style="font-family:'Courier New';"><b>Tabel Contoh CIDR kelas C</b> </span></p>
<table class="MsoTableGrid" style="border:medium none;background:#f3f3f3 none repeat scroll 0 50%;margin-left:0.2in;border-collapse:collapse;" border="1" cellpadding="0" cellspacing="0">
<tr>
<td style="border:1pt solid windowtext;background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">Subnet</span></b></p>
</td>
<td style="width:65.65pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.8.0</span></b></p>
</td>
<td style="width:1in;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.16</span></b></p>
</td>
<td style="width:69.2pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92"><b>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</b></td>
<td style="width:20.8pt;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">&#8230;..</span></b></p>
</td>
<td style="width:1in;border-color:windowtext windowtext windowtext #000000;border-style:solid solid solid none;border-width:1pt 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.40</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">Host Pertama</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.9</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.17</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92"><b>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</b></td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.41</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">host Terakhir</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.14</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.22</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92"><b>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</b></td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.46</span></b></p>
</td>
</tr>
<tr>
<td style="background:#e0e0e0 none repeat scroll 0 50%;width:42.35pt;border-color:#000000 windowtext windowtext;border-style:none solid solid;border-width:medium 1pt 1pt;padding:0 5.4pt;" valign="top" width="56">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;font-family:'Franklin Gothic Medium';">Broadcast</span></b></p>
</td>
<td style="width:65.65pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="88">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.15</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.23</span></b></p>
</td>
<td style="width:69.2pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="92"><b>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;</b></td>
<td style="width:20.8pt;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="28">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">…..</span></b></p>
</td>
<td style="width:1in;border-style:none solid solid none;border-width:medium 1pt 1pt medium;padding:0 5.4pt;" valign="top" width="96">
<p class="Paragraf1" style="margin-left:0;"><b><span style="font-size:8pt;">202.67.33.47</span></b></p>
</td>
</tr>
</table>
<p class="Paragraf1" style="margin-left:1.25in;">&nbsp;</p>
<p class="Paragraf1" style="margin-left:1.25in;">Pada tabel kelas C di atas alamat network yang digunakan adalah kelipatan <b>8</b>, didapat dari <b>256 – 248</b>. Dengan subnet <b>/29</b> kita memiliki <b>2 <sup>5</sup> – 2</b> atau <b>30</b> alamat network dan <b>2 <sup>3</sup> – 2</b> atau <b>6</b> alamat host.</p>
<p class="MsoNormal">&nbsp;</p>
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		<title>Perlukah sertifikasi IT ?</title>
		<link>http://cyrusreza.wordpress.com/2008/02/28/perlukah-sertifikasi-it/</link>
		<comments>http://cyrusreza.wordpress.com/2008/02/28/perlukah-sertifikasi-it/#comments</comments>
		<pubDate>Thu, 28 Feb 2008 09:39:22 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=4</guid>
		<description><![CDATA[Judul diatas mungkin pertanyaan yang mengganggu ideologi,,, Beberapa orang berpendapat, bahwa mengikuti program sertifikasi IT hanya buang &#8211; buang uang. Mereka beranggapan, bahwa memiliki sertifikasi IT sama sekali tidak perlu, dikarenakan memiliki skill IT tidak perlu di&#8221;labelkan&#8221; dengan embel2 gelar kompetensi. Pendapat demikian tidak sepenuhnya benar atau tidak benar2 salah , orang bijak bilang, semua [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=4&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>    Judul diatas mungkin pertanyaan yang mengganggu ideologi,,, <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />   Beberapa orang berpendapat, bahwa mengikuti program sertifikasi IT hanya buang &#8211; buang uang. Mereka beranggapan, bahwa memiliki sertifikasi IT sama sekali tidak perlu, dikarenakan memiliki skill IT tidak perlu di&#8221;labelkan&#8221; dengan embel2 gelar kompetensi. Pendapat demikian tidak sepenuhnya benar atau tidak benar2 salah <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  , orang bijak bilang, semua dikembalikan ke pribadi masing2&#8230; <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  .</p>
<p>Kalau memang alasannya karena buang2 uang, bisa saja kita analogikan, buat apa berlama &#8211; lama kuliah kalau kita bisa pintar tanpa perlu menempuh jalur akademis. Untuk bisa mencapai sesuatu yang kita inginkan, hanya berbekal pintar kadang tidak cukup. Kita harus peka dan fleksibel terhadap zaman, dan mau mengikuti beberapa aturan. Bukankah  ada pepatah jawa mengatakan <i>jer besuki mawa bea,</i> yang berarti : untuk mencapai sesuatu diperlukan pengorbanan yang bisa berupa modal, waktu,  pikiran bahkan perasan  <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  .<br />
Melihat dari kenyataan  sekarang, banyak perusahaan yang memasukkan syarat kepemilikkan sertifikasi IT dalam proses rekruitmen karyawan. Pihak perusahaan pun merasa diuntungkan dengan adanya sertifikasi IT,  karena mereka tidak perlu berlama &#8211; lama untuk menguji calon karyawannya  dengan berbagai test kemampuan. Perusahaan juga tidak perlu sering gonta &#8211; ganti platform dikarenakan keterbatasan SDM dalam menjalankan sistem, software / hardware dari vendor tertentu. Sertifikasi IT juga merupakan suatu bukti keseriusan vendor dalam mengeluarkan produknya, sehingga konsumen mendapatkan kemudahan dalam penggunaan sistem, software / hardware dalam waktu yang lama.</p>
<p>Beberapa open source, memang ada yang tidak mempunyai program sertifikasi,  tapi para penggunanya banyak yg mempunyai kompetensi di bidangnya.mmhhhh,,,,benar juga, beberapa orang memang punya kemampuan belajar istimewa, haus akan ilmu dan mempunyai kesabaran untuk meneliti ( kan gak semua orang bisa begini )  <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  . Setahu saya, beberapa open source pun sudah mulai membuka jalur sertifikasi karena  menginginkan standar baku buat profesional yang berada di bawah bendera partainya <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  maksut saya platformnya.</p>
<p>Apapun pilihannya, yang penting kita bisa bermanfaat dg apa yg kita ketahui ( kok jadi relijius ?) <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' />  . walau tahu sedikit, yg penting bisa membuat hidup lebih berarti,,,betul tidaaak ? Insya Alloh&#8230;..</p>
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		<title>i&#8217;ve just joined</title>
		<link>http://cyrusreza.wordpress.com/2008/02/21/ive-just-joined/</link>
		<comments>http://cyrusreza.wordpress.com/2008/02/21/ive-just-joined/#comments</comments>
		<pubDate>Thu, 21 Feb 2008 03:29:41 +0000</pubDate>
		<dc:creator>cyrusreza</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://cyrusreza.wordpress.com/?p=3</guid>
		<description><![CDATA[actually i love to write, but i don&#8217;t know what topic should i write,,, some people say, writing is the good way to remember all kinds of stuff you had. with a little imagination, certainly can be a film scenario, novel,scientific method for learner or at least your private diary.. therefore,,,by now let&#8217;s write&#8230;&#8230;<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=cyrusreza.wordpress.com&amp;blog=2931527&amp;post=3&amp;subd=cyrusreza&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>actually i love to write, but i don&#8217;t know what topic should i write,,, <img src='http://s0.wp.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>some people say, writing is the good way to remember all kinds of stuff  you had. with a little imagination, certainly can be a film scenario, novel,scientific method for learner  or at least your private diary..  <img src='http://s1.wp.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>therefore,,,by now let&#8217;s write&#8230;&#8230;</p>
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