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Stop SPAM on Your Postfix Server with Spamassassin

If you have a mail server, you can almost guarantee that SPAM will find its way in (and out if your not careful)...

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Using DPKG To Install OpenVZ On Debian

 

To use the DPKG package manager to install OpenVZ...

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Weekend Project: Monitor Your Server with StatusNet Updates

Summer is almost here; do you really want to spend it sitting indoors and monitoring the health of a running server or daemon? Rather than resign yourself to that fate, why not set up your system to post important messages, from regular status updates to emergency messages, through a microblogging service like Identi.ca? It's easier than you might think.

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Install and Configure a Postfix Mail Server

Knowing how to set up a mail server on a Linux machine is an important task any Linux admin should know. And of course, in the spirit of all things Linux, there are a number of ways you can go in order to get that mail server up and running...

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Understanding Linux File Permissions

Although there are already a lot of good security features built into Linux-based systems, one very important potential vulnerability can exist when local access is granted - - that is file permission based issues resulting from a user not assigning the correct permissions to files and directories. So based upon the need for proper permissions, I will go over the ways to assign permissions and show you some examples where modification may be necessary.

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