In the fast-paced, competitive world of information technology, a company's existence is highly dependent on the speed and reliability of its communication. Along with mobile phones and the Internet, there comes an ever increasing demand to have access to the electronic e-mail service anywhere, at any time. As compared to other messaging media like SMS messages and faxes, e-mail services are quite flexible and cost-effective, while having fewer message length limitations.

Due to its advantages, all companies, from startups to large corporations, employ such services, often at a small scale. To circumvent many of the costs and complications of hosting a dedicated e-mail system within the company, they opt to outsource this service. This approach is sufficient on the short-run. However, any growing company can benefit from the dedicated services of a mail server, learning to gradually rely on the features they provide.

Google’s Linux software repositories make it easier to download and stay up-to-date with current releases of Google Linux applications. Please choose one of the guides below to help configure your system to use these repositories.

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This document describes an implementation of a large-scale messaging solution relying on the AXIGEN Mail Server software. The global architecture for the solution is described along with implementation details and operation and maintenance procedures.

The information is intended for users who are evaluating the benefits of a distributed, high availability solution as well as for integrators and operational personnel. The components of such a solution, both software and hardware, are also listed in this document thus ensuring the ability to assess overall associated costs.

From Poromenos' Stuff:

So, you want to learn the Python programming language but can't find a concise and yet full-featured tutorial. This tutorial will attempt to teach you Python in 10 minutes. It's probably not so much a tutorial as it is a cross between a tutorial and a cheatsheet, so it will just show you some basic concepts to start you off. Obviously, if you want to really learn a language you need to program in it for a while. I will assume that you are already familiar with programming and will, therefore, skip most of the non-language-specific stuff. The important keywords will be highlighted so you can easily spot them. Also, pay attention because, due to the terseness of this tutorial, some things will be introduced directly in code and only briefly commented on.

Read the full thing at http://www.poromenos.org/tutorials/python

From Howto forge

When reading a 'hint' on the website of LinuxFromScratch I discovered the special capabilities of unionfs, specially in combination with chroot. Later I read a HowTo on a wikiwebsite of Gentoo, about entering a chrooted homedirectory when using a special script as shell. Combining these two brings me to using a chrooted environment, which you enter when logging in as a special user. This environment is a exact copy (mirror) of the system you're working on. Because you're in safe copy of the real system, you can do whatever you like, it will never change the system, everything stays inside the cache (the readwrite branch).

Read the full thing at http://www.howtoforge.com/safe_mirror_unionfs_chroot

What Are Blacklists?

A blacklist usually refers to a list of e-mail or IP addresses known to send spam e-mails or some other type of unsolicited messages. Such lists are currently used by mail servers for filtering incoming e-mails and blocking the ones listed, in order to improve mail security and integrity. The blacklist is also the opposite of what is called a whitelist.

bzip2 and bunzip2 are file compression and decompression utilities. The bzip2 and bunzip2 utilities are newer than gzip and gunzip and are not as common yet, but they are rapidly gaining popularity. The bzip2 utility is capable of greater compression ratios than gzip. Therefore, a bzip2 file can be 10-20% smaller than a gzip version of the same file. Usually, files that have been compressed by bzip2 will have a .bz2 extension.

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SMPlayer intends to be a complete front-end for MPlayer, from basic features like playing videos, DVDs, and VCDs to more advanced features like support for MPlayer filters and more.

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From IBM developerWorks:

Applications using the LAMP (Linux®, Apache, MySQL, PHP/Perl) architecture are constantly being developed and deployed. But often the server administrator has little control over the application itself because it's written by someone else. This series of three articles discusses many of the server configuration items that can make or break an application's performance.

Tuning LAMP systems, Part 1: Understanding the LAMP architecture
Tuning LAMP systems, Part 2: Optimizing Apache and PHP
Tuning LAMP systems, Part 3: Tuning your MySQL server

From Linux.com:

By itself, Vim is one of the best editors for shell scripting. With a little tweaking, however, you can turn Vim into a full-fledged IDE for writing scripts. You could do it yourself, or you can just install Fritz Mehner's Bash Support plugin.

Read the full thing at http://applications.linux.com/applications/07/06/04/184212.shtml?tid=13&tid=47