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	<title>Information Technology for Our</title>
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	<description>We have</description>
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		<title>Information Technology for Our</title>
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		<item>
		<title>Pindah</title>
		<link>http://dna09.wordpress.com/2007/11/18/pindah/</link>
		<comments>http://dna09.wordpress.com/2007/11/18/pindah/#comments</comments>
		<pubDate>Sun, 18 Nov 2007 03:52:04 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[blog ini selanjutnya dipindah ke http://dna09.jaylangkung.com<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=17&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>blog ini selanjutnya dipindah ke <a href="http://dna09.jaylangkung.com">http://dna09.jaylangkung.com</a></p>
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			<media:title type="html">dna09</media:title>
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		<title>Looping Example</title>
		<link>http://dna09.wordpress.com/2007/11/13/looping-example/</link>
		<comments>http://dna09.wordpress.com/2007/11/13/looping-example/#comments</comments>
		<pubDate>Tue, 13 Nov 2007 17:12:04 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[C++]]></category>
		<category><![CDATA[Programming]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/11/13/looping-example/</guid>
		<description><![CDATA[For (kondisi awal; Kondisi Akhir; Tingkat kenaikan) { Statement }<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=16&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>For (kondisi awal; Kondisi Akhir; Tingkat kenaikan)</p>
<p>{</p>
<p>Statement</p>
<p>}</p>
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			<media:title type="html">dna09</media:title>
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	</item>
		<item>
		<title>Menggabungkan 2 koneksi Internet</title>
		<link>http://dna09.wordpress.com/2007/10/24/menggabungkan-2-koneksi-internet/</link>
		<comments>http://dna09.wordpress.com/2007/10/24/menggabungkan-2-koneksi-internet/#comments</comments>
		<pubDate>Wed, 24 Oct 2007 06:49:22 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Microtik]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/10/24/menggabungkan-2-koneksi-internet/</guid>
		<description><![CDATA[&#62; Jaringan 1 ------------- ---------------------- &#62; Internet (koneksi 1) &#62; &#124; &#124; &#62; Router Linux (4 ethernet card) &#62; &#124; &#124; &#62; Jaringan 2 ------------- ---------------------- &#62; Internet (koneksi 2) &#62; &#62; &#62; Jaringan 1 secara default menggunakan koneksi internet 1 &#62; Jaringan 2 secara default menggunakan koneksi internet 2 &#62; &#62; Bisakah Linux Router [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=15&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<pre>&gt; Jaringan 1 -------------                              ----------------------
&gt; Internet (koneksi 1)
&gt;                               |                               |
&gt;                            Router Linux (4 ethernet card)
&gt;                               |                               |
&gt; Jaringan 2 -------------                              ----------------------
&gt; Internet (koneksi 2)
&gt;
&gt;
&gt; Jaringan 1 secara default menggunakan koneksi internet 1
&gt; Jaringan 2 secara default menggunakan koneksi internet 2
&gt;
&gt; Bisakah Linux Router di setup seperti konfigurasi di atas (dengan menggunakan
&gt; 4 ethernet card)  ?

saya masang 5 ethernet card, no problemo

&gt; Jika memang bisa, apakah dapat juga dibuat agar secara otomatis linux
&gt; mendeteksi terputusnya salah satu koneksi kemudian mengalihkannya ke koneksi
&gt; yang tidak terputus ?

dua kemungkinan:

1. jika kedua upstream provider menyediakan protokol OSPF tinggal setup
OSPFnya (di lapangan jarang ISP menyediakan protokol OSPF ke pelanggan)

2. monitoring koneksi
isp1: pake gw1
isp2: pake gw2

buat script supaya selang waktu tertentu mengecek koneksi
- jika gw1 dan gw2 up, tentukan routing default kemana
- jika gw1 up dan gw2 down, route default ke gw1
- jika gw1 down dan gw2 up, route default ke gw2
- jika gw1 down dan gw2 down, telp kedua ISP tersebut

kelemahan
- jika default gw1, maka downlink dari gw2 kosong, tidak terpakai
meskipun gw2 up
- begitu juga sebaliknya

solusi: load balancing, tapi butuh effort lebih + support dari ISP
(mungkin)
keyword: paket downlink akan mengalir jika source routing sesuai dgn ISP
yang bersangkutan
misal: jika anda mengakses yahoo.com dgn source routing IP ISP1 maka
downlink pasti lewat ISP1, nggak akan lewat ISP2</pre>
<pre> trims to : linux-admin</pre>
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			<media:title type="html">dna09</media:title>
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	</item>
		<item>
		<title>Current state of immunology research in India</title>
		<link>http://dna09.wordpress.com/2007/10/01/current-state-of-immunology-research-in-india/</link>
		<comments>http://dna09.wordpress.com/2007/10/01/current-state-of-immunology-research-in-india/#comments</comments>
		<pubDate>Mon, 01 Oct 2007 08:21:28 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[BioInformatika]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/10/01/current-state-of-immunology-research-in-india/</guid>
		<description><![CDATA[Rudimentary studies on aspects of biochemistry in India date back to 1927. But, in the field of Immunology, such studies were started by scholars only during early 1970s at the All India Institute of Medical Sciences, New Delhi, India. Science and Technology was not an immediate priority until 1961 due to domestic and political conditions [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=9&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><span style="font-family:Verdana;"><font size="1">Rudimentary  			studies on aspects of biochemistry in India date back to 1927. But,  			in the field of Immunology, such studies were started by scholars  			only during early 1970s at the All India Institute of Medical  			Sciences, New Delhi, India. Science and Technology was not an  			immediate priority until 1961 due to domestic and political  			conditions in the country. We were then 11 years old since  			independence and our focus was on economic and social developments.  			Gradually, improvements were made in the field and now we have 15-20  			major groups (small in size) of immunologists in the country, who  			have made significant contribution in the field during the last 8-10  			years. Hence, we anticipate improvements in manpower and  			infrastructure in the near future.</font></span></p>
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			<media:title type="html">dna09</media:title>
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		<item>
		<title>Hacking modem speedy</title>
		<link>http://dna09.wordpress.com/2007/09/28/hacking-modem-speedy/</link>
		<comments>http://dna09.wordpress.com/2007/09/28/hacking-modem-speedy/#comments</comments>
		<pubDate>Fri, 28 Sep 2007 14:18:23 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Hacking / Cracking]]></category>
		<category><![CDATA[Hacking/Cracking]]></category>

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		<description><![CDATA[&#160; &#160; “Alangkah cuek nya para engineer speedy dan orang-orang telkom, atau…kurang paham tentang security” Benarkah?!Yup, terbukti dengan banyak nya modem speedy yang masih menggunakan default password. Mungkin orang-orang telkom sudah merasa terlindungi, karena sekarang network speedy menggunakan authentifikasi ketat yang memanfaatkan no.telp juga, sehingga walaupun kita tahu informasi lengkap username+password orang lain, tetap tidak [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=4&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p class="entry">&nbsp;</p>
<p class="snap_preview">&nbsp;</p>
<blockquote>
<p align="justify">“Alangkah cuek nya para engineer speedy dan orang-orang telkom, atau…kurang paham tentang security”</p>
</blockquote>
<p align="justify">Benarkah?!Yup, terbukti dengan banyak nya modem speedy yang masih menggunakan default password. Mungkin orang-orang telkom sudah merasa terlindungi, karena sekarang network speedy menggunakan authentifikasi ketat yang memanfaatkan no.telp juga, sehingga walaupun kita tahu informasi lengkap username+password orang lain, tetap tidak bisa menggunakan layanan nya karena kita connect dari no. telp yang berbeda.</p>
<p align="justify">Namun apakah dengan begitu para installer speedy bisa cuek untuk tidak mengganti default management password untuk modem nya?! Saya dan r0t0r pernah havin fun dengan suatu tools yang di rilis pada salah satu grup underground (err, spanish?!), jenis tools scanning web service yang mengklaim diri nya sebagai salah satu yang tercepat dengan feature bruteforce untuk mendapatkan password-password pada mesin-mesin yang membuka management interface web (metode scan nya cukup unik, dan memang cepat).</p>
<p align="justify">Kami coba beberapa network di indonesia, salah satu nya adalah speedy. Dan tidak mengherankan, banyak modem yang diset dengan password default (banyak jenis modem, dan tools ini bisa mendapatkan password nya dengan customize secara lebih mudah). Menembus modem speedy adalah hal yang umum terutama di kalangan underground indonesia, dah bahkan jaman dulu banyak yang bisa memanfaatkan username/password dari koneksi-koneksi unlimited (warnet, kantor, dll). Untuk mencari username/password dari web interface modem speedy pun banyak di bahas oleh kalangan underground.</p>
<p align="justify">So?!berhubung telkom sudah menerapkan auth yang baru, tidak ada yang bisa kita lakukan walaupun mendapatkan akses ke modem unlimited seperti kantor?!</p>
<p align="justify">Jika mau jahat, bisa saja. Seperti yang kita ketahui, modem adsl memiliki feature DHCP, dan pada modem itu juga lah di set DNS server bagi komputer-komputer client dalam LAN nya. Dan jika sudah mendapatkan akses ke modem, apapun bisa kita lakukan. Termasuk di antara nya adalah mengganti informasi DNS.</p>
<p align="justify">Anggaplah kita memiliki suatu server (terserah, hasil crack ataupun memang server sendiri dengan IP Public), dan di server tersebut install DNS server. DNS server nya bisa menggunakan DNS biasa ataupun membuat nya sendiri secara sederhana, yang inti nya nanti bisa memberikan informasi palsu pada siapapun yang melakukan query pada DNS server ini.</p>
<p align="justify">Informasi palsu misal nya, untuk situs www.friendster.com memiliki IP address 209.11.168.113, kita ganti sehingga apabila ada query untuk www.friendster.com diredirect ke fake webserver (membuat tampilan friendster kan ndak susah <img src="http://cyberheb.wordpress.com/wp-includes/images/smilies/icon_smile.gif" alt=")" class="wp-smiley" /> ). Dengan begitu, apabila ada koneksi dari salah satu client di modem speedy, akan di re-direct ke DNS server palsu yang kemudian memberikan informasi bahwa www.friendster.com berlokasi di alamat palsu.</p>
<p align="justify">Inilah kelemahan dari salah satu design menggunakan DHCP server dan mungkin, kelemahan dari design internet yang mempercayakan DNS server untuk menunjukan alamat suatu website. Sekali DNS kita kuasai, maka query dari user bisa diarahkan kemanapun juga.</p>
<p align="justify">Skenario diatas cukup mudah kok dilakukan, apalagi jika kita bisa control query pada DNS server hanya untuk web-web tertentu (misal nya: klikbca?!), dan selebih nya diberikan pada authoritive DNS server yang lain namun status nya terbuka, seperti <a href="http://www.opendns.com/" target="_blank">opendns</a> . Dengan begitu, kita hanya akan men-sniff koneksi ke web server-web server yang sudah di persiapkan, sedangkan query untuk web server lain akan di handle opendns, hal ini membantu mengurangi kecurigaan pada client speedy yang tidak bisa membuka web server lain saat browsing. Dan jarang sekali orang melakukan troubleshooting dengan mengamati informasi DNS server pada DHCP configuration modem, biasa nya jika ada gangguan akan langsung menuju pada proses routing.</p>
<p align="justify">So?!untuk para engineer speedy atau bahkan pihak telkom sendiri, masih menganggap remeh default password yang dipasang pada modem speedy?!skenario diatas cuma basic, pengembangan nya bisa lebih luas…dan jika yang kena adalah modem speedy untuk kantoran, habislah berbagai macam password client anda, dan gak sulit untuk membuat halaman page palsu yang mengatakan “PASSWORD SALAH, ULANGI!!!” pada percobaan pertama, dan untuk percobaan kedua maka di re-direct langsung dari web asli nya sehingga si customer bisa login secara normal namun password nya sudah di-log pada percobaan pertama, paling dia hanya berpikir “sial, salah password!”.</p>
<p align="justify">Ah, easy to think evil…semoga saja untuk selanjut nya banyak yang lebih care untuk masalah default password terutama di modem, jangan lupa…bahkan hal kecil seperti XSS pun sudah mulai meng-kuatirkan saat ini, jangan pernah anggap remeh celah keamanan sekecil apa pun!!!.</p>
<p align="justify">&nbsp;</p>
<p align="justify">Wrote By &#8220;<strong>Cyberheb</strong> &#8220;</p>
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		<title>What is PABX ?</title>
		<link>http://dna09.wordpress.com/2007/09/28/what-is-pabx/</link>
		<comments>http://dna09.wordpress.com/2007/09/28/what-is-pabx/#comments</comments>
		<pubDate>Fri, 28 Sep 2007 14:18:04 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Technology Information]]></category>
		<category><![CDATA[Tehcnology]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/09/28/what-is-pabx/</guid>
		<description><![CDATA[PABX is an acronym for &#8230; Private Automatic Branch eXchange is a private telephone exchange located at the subscriber and connected to the telephone network. it ties together telephones, fax and data systems in a company and connects these to the network. The automatic telephone switching system within a private enterprise. Originally, such systems &#8211; [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=6&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><span style="font-weight:bold;">PABX is an acronym for &#8230;</span><span style="font-weight:bold;"> Private Automatic Branch eXchange</span></p>
<p><img src="http://mhs.stiki.ac.id/dotsun/imageblog/pabx.jpg" alt="pabx" align="left" height="171" width="171" /> is a private telephone exchange located at the subscriber and connected to the telephone network. it ties together telephones, fax and data systems in a company and connects these to the network.</p>
<p>The automatic telephone switching system within a private enterprise. Originally, such systems &#8211; called private branch exchanges (PBX) &#8211; required the use of a live operator. Since almost all private branch exchanges today are automatic, the abbreviation &#8220;PBX&#8221; usually implies a &#8220;PABX.&#8221;Some manufacturers of PABX (PBX) systems distinguish their products from others by creating new kinds of private branch exchanges. Rolm offers a Computerized Branch Exchange (CABX) and Usha Informatics offers an Electronic Private Automatic Branch Exchange (EPABX).</p>
<p>This device typically installed within an office to provide for connection and switching of the telephones in that office and the interfacing to the public telephone network. Common PABX systems include facilities for switchboard operators and may also be used to handle data traffic as well as voice.</p>
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		<title>Buat Schedule di Mikrotik</title>
		<link>http://dna09.wordpress.com/2007/09/24/schedule-di-mikrotik/</link>
		<comments>http://dna09.wordpress.com/2007/09/24/schedule-di-mikrotik/#comments</comments>
		<pubDate>Mon, 24 Sep 2007 06:42:14 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Microtik]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/09/24/schedule-di-mikrotik/</guid>
		<description><![CDATA[Bagaimana menjalankan schedule di microtik ? ternyata gampan, setelah mencari dan mencari di web microtic ini caranya &#160; kalian haru masuk dahulu melalui consol &#8220;ini cara yng saya pakai&#8221; sebagai admin atau user selevel admin ^_^ &#160; [ivan@Server] &#62; system script add name=”test” source=&#8221;system shutdown&#8221; setelah itu kita buat schedulenya, [ivan@Server] &#62; system scheduler add [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=10&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p class="snap_preview">Bagaimana menjalankan schedule di microtik ?<br />
ternyata gampan, setelah mencari dan mencari di web microtic ini caranya
</p>
<p class="snap_preview">&nbsp;</p>
<p class="snap_preview">kalian haru masuk dahulu melalui consol &#8220;ini cara yng saya pakai&#8221; sebagai admin atau user selevel admin ^_^</p>
<p class="snap_preview">&nbsp;</p>
<blockquote><p>[ivan@Server] &gt; system script add name=”test” source=&#8221;system shutdown&#8221;</p></blockquote>
<p>setelah itu kita buat schedulenya,</p>
<blockquote><p>[ivan@Server] &gt; system scheduler add name=”mati” on-event=test start-date=jan/25/2007 start-time=21:00:00 interval=1d</p></blockquote>
<p>disini kalo diartikan dari system schedule nya adalah, pada hari saat kita membuat setiap jam 21.00, dengan interval setiap 24 jam server akan mengeksekusi schedule “mati” dimana schedule tersebut akan running script bernama “test” yang didalamnya ada peritah “system shutdown”. Pada dasarnya semua script yang kita tulis adalah perintah biasa yang dikenali oleh mikrotikOS, jadi sebenarnya tinggal dinalar saja OK&#8230; <img src="http://dhanis.web.id/smilies/yahoo_giggle.gif" alt=";))" class="wp-smiley" height="18" width="18" />.</p>
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			<media:title type="html">;))</media:title>
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		<title>Hello world!</title>
		<link>http://dna09.wordpress.com/2007/09/19/hello-world/</link>
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		<pubDate>Wed, 19 Sep 2007 10:46:33 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false"></guid>
		<description><![CDATA[Selamat Datang di Blog Gwa Dna<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=1&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Selamat Datang di Blog Gwa <strong>Dna</strong></p>
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		<title>PHPScript</title>
		<link>http://dna09.wordpress.com/2007/08/02/phpscript/</link>
		<comments>http://dna09.wordpress.com/2007/08/02/phpscript/#comments</comments>
		<pubDate>Thu, 02 Aug 2007 05:01:20 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[PHP]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/08/02/phpscript/</guid>
		<description><![CDATA[PHPScript is PHP&#8217;s own ActiveScript interface. In practical terms, this means that you can use PHP from within any application that can host ActiveScript engines. The list of known hosts includes, and is not limited to: Windows Scripting Host (WSH), cscript.exe/wscript.exe &#8220;Classic&#8221; Active Server Pages Microsoft Scripting Control, and by extension any application that loads [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=11&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p class="nodecontent">PHPScript is PHP&#8217;s own ActiveScript interface. In practical terms, this means that you can use PHP from within any application that can host ActiveScript engines. The list of known hosts includes, and is not limited to:</p>
<ul>
<li>Windows Scripting Host (WSH), cscript.exe/wscript.exe</li>
<li>&#8220;Classic&#8221; Active Server Pages</li>
<li>Microsoft Scripting Control, and by extension any application that loads that control</li>
<li> <a href="http://users.chello.be/ws36637/#script">psvActiveScript</a> Control for Delphi applications</li>
<li> <a href="http://www.weaverslave.ws/">Weaverslave</a> an IDE</li>
<li> <a href="http://kapsules.shellscape.org/">Kapsules</a> a desktop widget engine</li>
</ul>
<p><strong>Installation</strong></p>
<ul>
<li>Download and install <a href="http://www.php.net/download.php#v5">PHP 5</a></li>
<li> <a href="http://snaps.php.net/win32/PECL_5_0/php5activescript.dll">Download PHPScript</a> and put it in your c:\php5 directory</li>
<li>run  regsvr32 c:\php5\php5activescript.dll</li>
</ul>
<p><strong>Usage</strong></p>
<p><strong>Windows Script Host</strong></p>
<p>Create a .wsf file like this:</p>
<pre>   &lt;job id="test"&gt;
       &lt;script language="PHPScript"&gt;
           $WScript-&gt;Echo("Hello");
       &lt;/script&gt;
   &lt;/job&gt;</pre>
<p>or invoke your .php script directly from cscript.exe or wscript.exe using the //E:PHPScript option.</p>
<p><strong>ASP (untested)</strong></p>
<pre>    &lt;%@language=PHPScript %&gt;
    &lt;%$Response-&gt;Write("Hello"); %&gt;</pre>
<p><strong>Script Controls</strong></p>
<p>Set the language property to PHPScript</p>
<p><strong>Script Components / IE</strong></p>
<p><em>note: it is very dangerous to deploy PHPScript inside IE</em></p>
<p>Simply use &lt;script language=&#8221;PHPScript&#8221;&gt; for your script tags.</p>
<p><strong>Developers Notes</strong></p>
<p>If you are developing code to run under PHPScript, you need to keep in mind the following differences from regular PHP:</p>
<ul>
<li> <strong>echo</strong> doesn&#8217;t have any practical effect. You need to call methods of the host to output information. You may still use output buffering etc., it just won&#8217;t go anywhere if you flush it.</li>
</ul>
<ul>
<li>global objects added by the host are created as super-globals, so you need not reference them using the &#8220;global&#8221; statement.</li>
</ul>
<ul>
<li>PHPScript will not search for a default <strong>php.ini</strong> file.  It will look instead for <strong>php-activescript.ini</strong> inside the folder of the .exe process that launched it.</li>
</ul>
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		<title>Bioinformatika Dalam Virologi</title>
		<link>http://dna09.wordpress.com/2007/04/01/bioinformatika-dalam-virologi/</link>
		<comments>http://dna09.wordpress.com/2007/04/01/bioinformatika-dalam-virologi/#comments</comments>
		<pubDate>Sun, 01 Apr 2007 05:59:07 +0000</pubDate>
		<dc:creator>dna09</dc:creator>
				<category><![CDATA[BioInformatika]]></category>
		<category><![CDATA[Biologi]]></category>
		<category><![CDATA[BIT]]></category>
		<category><![CDATA[informatika]]></category>
		<category><![CDATA[system]]></category>

		<guid isPermaLink="false">http://dna09.wordpress.com/2007/04/01/bioinformatika-dalam-virologi/</guid>
		<description><![CDATA[Saat ini, perkembangan ilmu biologi sangat dipengaruhi oleh perkembangan ilmu bioinformatika. Tidaklah dapat dimungkiri kalau bioinformatika telah mempercepat kemajuan ilmu biologi. Lebih jauh lagi, kalau dilihat dari bidang yang lebih spesifik, kemajuan suatu bidang sangat dipengaruhi oleh kemajuan bioinformatika. Semakin maju bioinformatika di suatu bidang (ditandai dengan banyaknya software yang tersedia), semakin maju pulalah bidang [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=dna09.wordpress.com&amp;blog=1749332&amp;post=8&amp;subd=dna09&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p align="justify">Saat ini, perkembangan ilmu biologi sangat dipengaruhi oleh perkembangan ilmu bioinformatika. Tidaklah dapat dimungkiri kalau bioinformatika telah mempercepat kemajuan ilmu biologi. Lebih jauh lagi, kalau dilihat dari bidang yang lebih spesifik, kemajuan suatu bidang sangat dipengaruhi oleh kemajuan bioinformatika. Semakin maju bioinformatika di suatu bidang (ditandai dengan banyaknya software yang tersedia), semakin maju pulalah bidang tersebut.</p>
<p align="justify">Khusus di bidang Virologi (ilmu virus), kemajuan bioinformatika telah berperan dalam mempercepat kemajuan ilmu ini. Sebelum kemajuan bioinformatika, untuk mengklasifikasikan virus kita harus melihat morfologinya terlebih dahulu. Untuk melihat morfologi virus dengan akurat, biasanya digunakan mikroskop elektron yang harganya sangat mahal sehingga tidak bisa dimiliki oleh semua laboratorium. Selain itu, kita harus bisa mengisolasi dan mendapatkan virus itu sendiri.</p>
<p align="justify">Isolasi virus adalah suatu pekerjaan yang tidak mudah. Banyak virus yang tidak bisa dikulturkan, apalagi diisolasi. Virus hepatitis C (HCV), misalnya, sampai saat ini belum ada yang bisa mengkulturkannya, sehingga belum ada yang tahu bentuk morfologi virus ini. Begitu juga virus hepatitis E (HEV) dan kelompok virus yang termasuk ke dalam family Calliciviridae, dimana sampai saat ini belum ditemukan sistem pengkulturannya.</p>
<p align="justify">Walaupun untuk beberapa virus bisa dikulturkan, tidak semuanya bisa diisolasi dengan mudah. Oleh karena itu, sebelum perkembangan bioinformatika, kita tidak bisa mengidentifikasi dan mengklasifikasikan virus-virus semacam ini.</p>
<p align="justify">Dengan kemajuan teknik isolasi DNA/RNA, teknik sekuensing dan ditunjang dengan kemajuan bioinformatika, masalah diatas bisa teratasi. Untuk mengidentifikasi dan mengklasifikasikan virus, isolasi virus tidak lagi menjadi suatu hal yang mutlak. Kita cukup dengan hanya melakukan sekuensing terhadap gen-nya. Ini adalah salah satu hasil kemajuan bioinformatika yang nyata dalam bidang virologi.</p>
<p align="justify">Dalam tulisan ini akan dibahas aplikasi bioinformatika dalam dunia virologi, khususnya dalam klasifikasi virus, penentuan tingkat mutasi, prediksi rekombinasi, serta prediksi bagian antigen (antigenic sites) yang ada pada permukaan virus.</p>
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