Nagios is the industry standard in enterprise-class monitoring for good reason. It allows you to gain insight into your network and fix problems before customers know they even exist. It's stable, scalable, supported, and extensible.
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This tutorial explain how to use screen and screen profiles in your ubuntu server.
Screen is a program that allows you to have multiple logins on one terminal. It is useful in situations where you are telnetted into a machine or connected via a dumb terminal and want more than just one login.
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projectM is an audio visualizer that is pretty spiffy. Just have it running while playing audio on your system and you will get some pretty cool effects to go with your music's beats and rhythms. It's by far my favorite addition to my Ubuntu 9.04 64bit HTPC.
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Unravel The Music is a small startup; by that I mean we have no money, no financing, and we are owned and operated by two people. Therefore it is important that we get the most out of our server in terms of performance and cost and we have to do this without having to spend hours worrying about the server when we could be improving our design or code.
This tutorial will explain some of Known ubuntu 9.04(Jaunty Jackalope) bugs with workarounds
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