KCLUG March 2013

kclug@kclug.org

7 participants
2 discussions

Job Openings
by Jonathan Hutchins 26 Mar '13

26 Mar '13

We have a couple of job openings where I work that haven't been officially announced yet, so I don't have formal details. One position is a Linux Administrator here in Kansas City. Currently at the Bannister complex, due to move else somewhere in the city by 2014. Oracle knowledge is a big plus. This is not Windows with a little Linux on the side, it's straight Linux. The other position we're going to try to fill in Fort Worth first, and if we don't get the right guy there we'll consider placing someone here. Windows administrator with good knowledge of Citrix. You'll need to go through Tek Systems on contract-to-hire for 3-6 months, but if you want early consideration go ahead and send me a resume. I don't have any salary information yet, but we won't be above current averages.

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DOS prevention
by J. Wade Michaelis 18 Mar '13

18 Mar '13

I have a CentOS web server that has recently been brought to a halt on two separate occasions. Checking the access.log, it appears that it was a Denial of Service (DOS) attack (hundreds of HTTP requests in a very short time, all from a single IP address). I want to prevent these types of attacks from bringing the server to its knees. We have a hardware firewall (SonicWall) in place, but it isn't quite new enough to run the firmware that allows rate-limiting. I have found a number of tutorials that show how to do this type of thing with IPTABLES. Is there a better solution? Supposing I go with IPTABLES, do I need to include rules to allow FTP and SSH (the only other services on the server)? Would any of you be willing to assist me with this? Thanks, ~ j. jwade(a)userfriendlytech.net

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KCLUG March 2013