PaX and jail
Written by Kai Dietrich   
Saturday, 17 February 2007

The TeamSpeak server is already running. I'm waiting for the officials to open the ports in the firewalls and set up the dns aliases.

I learned alot about server security the last days. Everyone out there who sets up a server should have a look at the PaX kernel patches and the PIE/SSP GCC extensions. At first I decided against using SSP, since it introduces some overhead, but the authors claim, that this is only around 8% in usual applications. This is totally acceptable for me.

So, the poor server had to do a emerge -e world again. Rebuilding the whole system from source is pretty easy with gentoo :)

Another thing that should be considered for every application are chrool jails.At least one more layer of security.

The next logical step would be to put the TeamSpeak binary into a virtual machine ...

 
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