Archive for July 15th, 2009

The server every admin needs, part 2
Wednesday, July 15th, 2009 | Author: Ozzik

So, what’s next?
Let’s spend some time with the easier things.

Ntop. This one’s installed right from the standard repository (we already did so in the previous post).
The big question is why do you need it, right? Well, it’s a great tool that you can use for all kinds of purposes, but personally, I use it to monitor the Internet activity, or traffic loads to be exact.
The idea is very simple. If you have a setup like this: modem–>router–>firewall–>switch–>LANs, and you feel that the Internet is very slow, you just know that someone’s downloading something from the rapidshare.com or maybe even a new MS small DVD image of 3GB, how do you know who’s the asshole?
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The server every admin needs
Wednesday, July 15th, 2009 | Author: Ozzik

Hi,

Over the years working in IT I came to a conclusion every admin comes to - you have to have a server that does all the things that sometimes you underestimate the importance of.  Those would be logging, monitoring, documenting, analyzing. If you’re not new to this field - you’ll sure know what I’m talking about, but if you are - this may very well be the guide to your future professional happiness:)

Anyway, there are tons, and I mean tons of software willing to do those tasks, so 9 out of 10 people will jump and say they use a better one. But the ones I’m gonna discuss here are the ones that worked for me for some specific reason, or maybe even without one;)

So what are we building? We’re gonna build a monitoring server that uses Xymon(ex-Hobbit) software, Syslog-ng logging, Ntop network traffic probe, Plone documentation server and Splunk log analyzer.  I also plan to add the Observer for SNMP or otherwise integrate SNMP into Xymon. But that’s later. Just FYI I built this server to serve my own needs about 2 years ago, starting only with Hobbit and adding all the other software according to the needs, but as the new versions of software and OS were released I decided to rebuild the whole thing instead of upgrading. This time I documented the whole thing too. So let’s get to it.
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