SpamAssassin 2010 Ruleset Bug Confirmed

Cpanel confirmed via email and on their site that SpamAssassin has a bug: “The Quality Assurance team discovered a bug within the SpamAssassin ruleset that will mark messages sent in the year 2010 (that's today) and beyond with a higher spam score than expected. This bug can result in legitimate Girlfriend In A Week mail…

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cPanel: Installing Mod_Python on Apache 2

Note: It is preferred to use mod_wsgi instead of mod_python. If you want to use mod_python in Apache on a cPanel server, you’ll basically need to compile the module manually and load it into the Apache configuration: yum -y install subversion (IF it’s not already installed) svn co https://svn.apache.org/repos/asf/quetzalcoatl/mod_python/trunk mod_python cd mod_python ./configure –with-apxs=/usr/local/apache/bin/apxs make…

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Installing DomainKeys and SPF Records

DomainKeys (DKIM) and SPF records are becoming a common, and annoying, demand among email providers, mainly Yahoo and Hotmail. In short, both are methods of email authentication designed to verify email integrity, by linking a sender to a specific server or hostname. In other words, DomainKeys and SPF records specify what servers can send email…

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Installing Perl Modules

CPanel has a internal script for using CPAN to install Perl modules. Learn it and love it: /scripts/perlinstaller Most common Perl modules can be installed from WHM ~> Install a Perl Module, or from command line. If you don't know the name of the Perl module you're installing, you may want to use the WHM…

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The cPanel Backup System

Us cPanel system admins pity those who neglect to back up their sites and then blame their hosts when something goes awry…especially when cPanel makes it so damn easy to back up your entire account in just a few clicks — And we’re going to tell you how to do it. Of course, we’re not…

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Adding IP Addresses to a Server

In a hosted multi-site environment you may find yourself needing to add multiple IP addresses to a server. Luckily, cPanel makes it very easy to add IP addresses. This article will go over adding IP addresses to standalone servers, both through WHM and from command line on a cPanel server.   You probably already know…

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Upgrading or Downgrading MySQL

Update 2/15/14:  These instructions have been updated for cPanel 11.36+. You can easily change the major version of MySQL running on your server, keeping in mind that the actual version will be dependent on what cPanel has released in their repository and what cPanel version you’re running.  For example, if you’re running cPanel 11.40, you…

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Adding Services to Chksrvd for Monitoring

Chkservd is a driver of Tailwatchd, which is the service in cPanel that checks to make sure that services are running and restarts them if necessary. It’s also responsible for the ‘Service Manager’ section in cPanel, which is an interface where added services can be easily checked on and off. Service files are in /etc/chkserv.d/…

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