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	<title>Business &#38; I &#187; Networking</title>
	<atom:link href="http://arief.disolo.com/category/networking/feed/" rel="self" type="application/rss+xml" />
	<link>http://arief.disolo.com</link>
	<description>Business Development by Arief Fajar Nursyamsu</description>
	<lastBuildDate>Tue, 11 May 2010 05:13:00 +0000</lastBuildDate>
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		<item>
		<title>Mengakses CCTV Melalui Internet</title>
		<link>http://arief.disolo.com/akses-cctv-melalui-internet/</link>
		<comments>http://arief.disolo.com/akses-cctv-melalui-internet/#comments</comments>
		<pubDate>Fri, 20 Jun 2008 06:32:47 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[CCTV]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=20</guid>
		<description><![CDATA[Beberapa pengunjung masuk ke blog ini untuk mencari tahu cara mengakses CCTV lewat internet. Jika CCTV-nya adalah milik orang lain, maka tentu saja harus bertanya kepada yang punya tentang IP/URL CCTV tersebut. Tetapi jika Anda ingin mengeset CCTV Anda sendiri supaya bisa diakses lewat internet, maka berikut bahasannya. Jika anda sudah menggunakan CCTV dilengkapi dengan [...]]]></description>
			<content:encoded><![CDATA[<p>Beberapa pengunjung masuk ke blog ini untuk mencari tahu cara mengakses CCTV lewat internet. Jika CCTV-nya adalah milik orang lain, maka tentu saja harus bertanya kepada yang punya tentang IP/URL CCTV tersebut. Tetapi jika Anda ingin mengeset CCTV Anda sendiri supaya bisa diakses lewat internet, maka berikut bahasannya.</p>
<p>Jika anda sudah menggunakan CCTV dilengkapi dengan DVR (Digital Video Recorder) yang dilengkapi dengan port RJ-45 (Port untuk UTP), maka Anda tentu bisa mengaksesnya melalui interface yang disediakan oleh vendor. Ada dua interface, yang berbasis web dan berbasis aplikasi desktop.</p>
<p>Agar CCTV bisa diakses dari Internet, Anda membutuhkan IP Publik untuk DVR Anda. Jika anda hanya mempunyai IP lokal, Anda bisa meminta ISP Anda untuk melakukan routing dari IP Publik mereka ke IP lokal Anda.</p>
<p>Tetapi jika DVR Anda menggunakan IP lokal dan Anda mempunyai IP Publik (misalnya di router), Anda bisa melakukan routing sendiri. Caranya saya paparkan di <a title="Perintah NAT di Linux" href="http://arief.disolo.com/perintah-untuk-network-address-translatio-di-linux/">sini</a>.</p>
]]></content:encoded>
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		<slash:comments>21</slash:comments>
		</item>
		<item>
		<title>SOLVED: fetchmail &#8211; Server certificate verification error</title>
		<link>http://arief.disolo.com/solved-fetchmail-server-certificate-verification-error/</link>
		<comments>http://arief.disolo.com/solved-fetchmail-server-certificate-verification-error/#comments</comments>
		<pubDate>Mon, 26 May 2008 08:18:31 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[Fetchmail]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=16</guid>
		<description><![CDATA[I am using fetchmail to download emails from Yahoo Small Business mail server. I got the following error in the log file. May 26 14:55:07 office fetchmail[7593]: Server certificate verification error: unable to get local issuer certificate May 26 14:55:07 office fetchmail[7593]: Server certificate verification error: certificate not trusted May 26 14:55:07 office fetchmail[7593]: Server [...]]]></description>
			<content:encoded><![CDATA[<p>I am using <a title="Fetchmail" href="http://fetchmail.berlios.de">fetchmail</a> to download emails from Yahoo Small Business mail server. I got the following error in the log file.</p>
<blockquote><p>May 26 14:55:07 office fetchmail[7593]: Server certificate verification error: unable to get local issuer certificate<br />
May 26 14:55:07 office fetchmail[7593]: Server certificate verification error: certificate not trusted<br />
May 26 14:55:07 office fetchmail[7593]: Server certificate verification error: unable to verify the first certificate<br />
May 26 14:55:09 office fetchmail[7593]: sleeping at Mon 26 May 2008 02:55:09 PM WIT for 300 seconds</p></blockquote>
<p><a title="Fetchmail Certificate Error" href="http://lists.berlios.de/pipermail/fetchmail-users/2008-January/001433.html">The solution</a> can be achieved by updating the <a title="CA-Certificate" href="http://sial.org/howto/openssl/ca/">CA-Certificate</a>.</p>
<p>In Ubuntu-Server, I just need to do apt-get:</p>
<blockquote><p><strong> apt-get install ca-certificates</strong></p></blockquote>
<p>I am still have a problem on downloading read email from Yahoo Small Business. If the email is already read from the webmail (even it is not already downloaded by fetchmail), it will be no longer downloaded by fetchmail.</p>
<p>Fetchmail downloads undownloaded email (which is what I expect) from other mail servers other than Yahoo.</p>
<p>Anyone?</p>
]]></content:encoded>
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		<slash:comments>12</slash:comments>
		</item>
		<item>
		<title>SMBD Error</title>
		<link>http://arief.disolo.com/smbd-error/</link>
		<comments>http://arief.disolo.com/smbd-error/#comments</comments>
		<pubDate>Wed, 14 May 2008 03:12:48 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[Samba]]></category>
		<category><![CDATA[Tips]]></category>
		<category><![CDATA[Tricks]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=15</guid>
		<description><![CDATA[I had a problem with my Samba Server because of libgcrypt and libgpg-error update. Here is what smbd said: intranet# smbd -v /libexec/ld-elf.so.1: Shared object &#8220;libgcrypt.so.13&#8243; not found, required by &#8220;smbd&#8221; First solution is to upgrade the Samba, but I found another error: =&#62; Patch patch-Makefile.in failed to apply cleanly. *** Error code 1 Stop [...]]]></description>
			<content:encoded><![CDATA[<p>I had a problem with my Samba Server because of libgcrypt and libgpg-error update. Here is what smbd said:</p>
<blockquote><p>intranet# smbd -v<br />
/libexec/ld-elf.so.1: Shared object &#8220;libgcrypt.so.13&#8243; not found, required by &#8220;smbd&#8221;</p></blockquote>
<p>First solution is to upgrade the Samba, but I found another error:</p>
<blockquote><p>=&gt; Patch patch-Makefile.in failed to apply cleanly.<br />
*** Error code 1<br />
Stop in /usr/ports/net/samba3.<br />
*** Error code 1</p></blockquote>
<p>So to keep it simple (in the stupid way) <img src='http://arief.disolo.com/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> , here are what I did to solve the problem instead of reinstalling Samba:</p>
<ol>
<li>Locate for the libgcrypt.so.13 that gave me no result.</li>
<li>Go to /usr/local/lib/ and copy the existing libgcrypt.so.15 (caused by update) and give it name: libgcrypt.so.13<br />
<blockquote><p>intranet# cp libgcrypt.so.15 libgcrypt.so.13</p></blockquote>
</li>
<li>Run smbd again, and returned this<br />
<blockquote><p>intranet# smbd<br />
/libexec/ld-elf.so.1: Shared object &#8220;libgpg-error.so.1&#8243; not found, required by &#8220;smbd&#8221;</p></blockquote>
</li>
<li>Go to /usr/local/lib/ and copy the existing libgcrypt.so.0(caused by update) and give it name: libgpg-error.so.1<br />
<blockquote><p>intranet# cp libgpg-error.so.0 libgpg-error.so.1</p></blockquote>
</li>
<li>Run smbd again<br />
<blockquote><p>
intranet# smbd<br />
intranet#</p></blockquote>
</li>
<li>Voila, it works.</li>
</ol>
<p>I think this trick can be applied to other problems due to &#8220;not found shared object&#8221;.</p>
<p>Note: I use FreeBSD 5.5-STABLE</p>
]]></content:encoded>
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		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>[RESOLVED] jabberd2: ERROR: sm died. Shutting down server.</title>
		<link>http://arief.disolo.com/resolved-jabberd2-error-sm-died-shutting-down-server/</link>
		<comments>http://arief.disolo.com/resolved-jabberd2-error-sm-died-shutting-down-server/#comments</comments>
		<pubDate>Tue, 13 May 2008 03:24:31 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[instant messenger]]></category>
		<category><![CDATA[jabberd2]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=14</guid>
		<description><![CDATA[Sometime when you have a power outage on your jabber server while the service is running, you can not start jabberd. In my case it returned: ERROR: sm died. Shutting down server. It happened because the c2s component is trying to bind with the same hostname as sm component. This problem can be resolved by [...]]]></description>
			<content:encoded><![CDATA[<p>Sometime when you have a power outage on your jabber server while the service is running, you can not start jabberd. In my case it returned:</p>
<blockquote><p><strong>ERROR: sm died. Shutting down server.</strong></p></blockquote>
<p>It happened because the c2s component is trying to bind with the same hostname as sm component.</p>
<p>This problem can be resolved by <strong>changing the value on &lt;id&gt; tag on c2s.xml to any string</strong>.</p>
<p>More about jabberd2 can be found <a title="JabberD2" href="http://jabberd2.xiaoka.com/">here</a>.</p>
]]></content:encoded>
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		<slash:comments>15</slash:comments>
		</item>
		<item>
		<title>Perintah Untuk NAT Di Linux</title>
		<link>http://arief.disolo.com/perintah-untuk-network-address-translatio-di-linux/</link>
		<comments>http://arief.disolo.com/perintah-untuk-network-address-translatio-di-linux/#comments</comments>
		<pubDate>Sat, 26 Apr 2008 05:08:34 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[CCTV]]></category>
		<category><![CDATA[IPTables]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[NAT]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=12</guid>
		<description><![CDATA[Beberapa waktu yang lalu saya perlu untuk membuka akses ke CCTV yang berada di jaringan lokal agar dimungkinkan melihat CCTV melalui internet. Konfigurasi CCTV memungkinkan untuk mengeset port selain port 80. CCTV biasa diakses dengan http://192.xxx.xxx.xxx:80, atau melalui software berbasis jawa yang harus di-install di PC. Untuk memberikan akses user dari luar jaringan (melalui internet), [...]]]></description>
			<content:encoded><![CDATA[<p>Beberapa waktu yang lalu saya perlu untuk membuka akses ke CCTV yang berada di jaringan lokal agar dimungkinkan melihat CCTV melalui internet. Konfigurasi CCTV memungkinkan untuk mengeset port selain port 80. CCTV biasa diakses dengan http://192.xxx.xxx.xxx:80, atau melalui software berbasis jawa yang harus di-install di PC.</p>
<p>Untuk memberikan akses user dari luar jaringan (melalui internet), maka perlu dilakukan penerjemahan alamat network yang umum disebut sebagai NAT (Network Address Translation).</p>
<p>CCTV nantinya akan diakses melalui: http://cctv.mydomain.com:81 yang akan diterjemahkan menjadi http://192.xxx.xxx.xxx:80. Kenapa saya menggunakan 81 untuk port akses dari internet? Ini disebabkan port 80 sudah digunakan untuk web server.</p>
<p>Berikut perintah NAT untuk menyelesaikan masalah di atas:</p>
<blockquote><p><strong># iptables -t nat -A PREROUTING -d YOUR_PUBLIC_IP/32 -p tcp -m tcp &#8211;dport 81 -j DNAT &#8211;to-destination YOUR_PRIVATE_IP:80</strong></p></blockquote>
<p>Catatan: ganti YOUR_IP_PUBLIC dengan IP Public Anda dan YOUR_PRIVATE_IP dengan IP Privat Anda.</p>
<p>Selanjutnya perintah tersebut bisa disimpan dengan perintah</p>
<blockquote><p><strong># iptables -save</strong></p></blockquote>
<p>Saya tidak menyimpannya, tetapi perintah itu saya masukkan di-startup file karena alasan kepraktisan <img src='http://arief.disolo.com/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> </p>
<p><img class="aligncenter size-medium wp-image-13" title="CCTV " src="http://arief.disolo.com/wp-content/uploads/2008/04/capt_194-300x251.jpg" alt="CCTV Login Using FQDN" width="300" height="251" /></p>
]]></content:encoded>
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		<slash:comments>17</slash:comments>
		</item>
		<item>
		<title>Microsoft Rugi Jutaan Dolar Karena Pembajakan</title>
		<link>http://arief.disolo.com/microsoft-rugi-jutaan-dolar-karena-pembajakan/</link>
		<comments>http://arief.disolo.com/microsoft-rugi-jutaan-dolar-karena-pembajakan/#comments</comments>
		<pubDate>Fri, 04 Apr 2008 01:49:28 +0000</pubDate>
		<dc:creator>Arief Fajar Nursyamsu</dc:creator>
				<category><![CDATA[Networking]]></category>
		<category><![CDATA[Microsoft]]></category>

		<guid isPermaLink="false">http://arief.disolo.com/?p=6</guid>
		<description><![CDATA[Dari news ticker di tvOne: Microsoft rugi jutaan dolar karena pembajakan. Komentar saya: Salah sendiri produknya dijual mahal. Kalau dijual murah kan tidak bakalan sebesar itu kerugiannya.]]></description>
			<content:encoded><![CDATA[<p>Dari news ticker di <a title="tvOne" href="http://www.tvone.co.id/">tvOne</a>:</p>
<blockquote><p>Microsoft rugi jutaan dolar karena pembajakan.</p></blockquote>
<p>Komentar saya:</p>
<blockquote><p>Salah sendiri produknya dijual mahal. Kalau dijual murah kan tidak bakalan sebesar itu kerugiannya.</p></blockquote>
]]></content:encoded>
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		<slash:comments>5</slash:comments>
		</item>
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