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	<title>Sys Admin Guides, How To&#039;s, etc  by Marios Maravelias &#187; from</title>
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	<description>where prophets and madmen...walk hand in hand</description>
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		<title>How to check if some one is spamming from my server (Linux Plesk 8.x)</title>
		<link>http://www.sys-admin.gr/53/security/how-to-check-if-some-one-is-spamming-from-my-server-linux-plesk-8x/</link>
		<comments>http://www.sys-admin.gr/53/security/how-to-check-if-some-one-is-spamming-from-my-server-linux-plesk-8x/#comments</comments>
		<pubDate>Tue, 13 Nov 2007 12:19:07 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Unix/Linux Various]]></category>
		<category><![CDATA[check]]></category>
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		<category><![CDATA[spamming]]></category>
		<category><![CDATA[to]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/security/53</guid>
		<description><![CDATA[If you see a lot of smtp connections or your server gets constantly in spam black lists, maybe you should check if some bot spams through your server. The are 2 cases of spamming through a box: 1)using unsecure php forms that bots abuse 2)using smtp connection from an outside client this artice is about [...]]]></description>
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		<title>How do i send emails from my Web Application ? (.NET &amp; ASP)</title>
		<link>http://www.sys-admin.gr/36/mail-server/how-do-i-send-emails-from-my-web-application/</link>
		<comments>http://www.sys-admin.gr/36/mail-server/how-do-i-send-emails-from-my-web-application/#comments</comments>
		<pubDate>Wed, 11 Jul 2007 11:17:38 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[Application]]></category>
		<category><![CDATA[ASP]]></category>
		<category><![CDATA[do]]></category>
		<category><![CDATA[emails]]></category>
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		<category><![CDATA[How]]></category>
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		<category><![CDATA[my]]></category>
		<category><![CDATA[NET]]></category>
		<category><![CDATA[send]]></category>
		<category><![CDATA[Web]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/mail-server/36</guid>
		<description><![CDATA[here you can find various ways of sending emails with .NET 2 / .Net 1 CDONTS / Persist&#8217;s AspEmail / VB / PHP etc - Sending emails in ASP.NET 2.0 // using System.Net.Mail; // using System.Net; SmtpClient smtpClient = new SmtpClient(&#8220;smtp.domainHosted.com&#8221;); smtpClient.Credentials = new NetworkCredential(&#8220;user1@domainHosted.com&#8221;, &#8220;passwordHere&#8221;); MailMessage message = new MailMessage(); message.From = new MailAddress(user1@domainHosted.com); [...]]]></description>
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		<title>Block LIBWWW-PERL and web addresses to protect your site from botnets</title>
		<link>http://www.sys-admin.gr/23/apache/block-libwww-perl-and-web-addresses-to-protect-your-site-from-botnets/</link>
		<comments>http://www.sys-admin.gr/23/apache/block-libwww-perl-and-web-addresses-to-protect-your-site-from-botnets/#comments</comments>
		<pubDate>Thu, 31 May 2007 13:46:00 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Apache]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[addresses]]></category>
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		<category><![CDATA[Block]]></category>
		<category><![CDATA[botnets]]></category>
		<category><![CDATA[from]]></category>
		<category><![CDATA[httpd]]></category>
		<category><![CDATA[libwww]]></category>
		<category><![CDATA[LIBWWW-PERL]]></category>
		<category><![CDATA[perl]]></category>
		<category><![CDATA[Protect]]></category>
		<category><![CDATA[site]]></category>
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		<category><![CDATA[Web]]></category>
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		<guid isPermaLink="false">http://www.sys-admin.gr/archives/apache/23</guid>
		<description><![CDATA[Not only do I block all accesses from libwww-perl, I also log what they were looking for which turns up an amazing amount of botnet hits on a daily basis just randomly hitting websites trying to find a way inside. The first trick to securing your site from the script kiddies is to block any [...]]]></description>
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		<title>How to Prevent the IIS SMTP Virtual Server from Relaying E-mail Messages</title>
		<link>http://www.sys-admin.gr/18/security/how-to-prevent-the-iis-smtp-virtual-server-from-relaying-e-mail-messages/</link>
		<comments>http://www.sys-admin.gr/18/security/how-to-prevent-the-iis-smtp-virtual-server-from-relaying-e-mail-messages/#comments</comments>
		<pubDate>Wed, 30 May 2007 12:31:17 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[IIS]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Windows]]></category>
		<category><![CDATA[E-mail]]></category>
		<category><![CDATA[from]]></category>
		<category><![CDATA[How]]></category>
		<category><![CDATA[messages]]></category>
		<category><![CDATA[Prevent]]></category>
		<category><![CDATA[Relaying]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[smtp]]></category>
		<category><![CDATA[the]]></category>
		<category><![CDATA[to]]></category>
		<category><![CDATA[Virtual]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/iis/18</guid>
		<description><![CDATA[Do the following: 1) Start Internet Information Services Manager or open the Internet Information Services (IIS) snap-in. 2) Expand Server_name, where Server_name is the name of the server, right-click Default SMTP Virtual Server, and then click Properties. 3) Click the Access tab, and then under Access control, click Authentication. 4) Click to select either or [...]]]></description>
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		<title>Windows: Using Group Policies to Restrict Programs (Protect from Viruses and Worms)</title>
		<link>http://www.sys-admin.gr/16/security/using-group-policies-to-restrict-programs-protect-from-viruses-and-worms/</link>
		<comments>http://www.sys-admin.gr/16/security/using-group-policies-to-restrict-programs-protect-from-viruses-and-worms/#comments</comments>
		<pubDate>Tue, 29 May 2007 12:43:03 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Windows]]></category>
		<category><![CDATA[2000]]></category>
		<category><![CDATA[2003]]></category>
		<category><![CDATA[2k3]]></category>
		<category><![CDATA[and]]></category>
		<category><![CDATA[from]]></category>
		<category><![CDATA[Group]]></category>
		<category><![CDATA[Policies]]></category>
		<category><![CDATA[Programs]]></category>
		<category><![CDATA[Protect]]></category>
		<category><![CDATA[Restrict]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[to]]></category>
		<category><![CDATA[Using]]></category>
		<category><![CDATA[Viruses]]></category>
		<category><![CDATA[Worms]]></category>

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		<description><![CDATA[You can use a group policy to protect your server from known viruses that require an executable to run. For example, Sobig.F and Blaster are two fine examples. Go to Run &#62; Type MMC to open the Microsoft Management Console. Select File &#62; Add/Remove Snap-in &#62; Add &#62; Group Policy Object Editior Allow it to [...]]]></description>
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