Most used distro for ISP's?
Ok i know i might be walking into a flame war here but here goes.
What is the most used linux distrobution for servers and so forth in ISP's.
I'm not wanting the best or anything. I'm just looking into getting into network/server administration using linux as a job in a couple of years, and was wanting to be pointed upon the right track in terms of which linux distro to concentrate on learning...
This is becasue i'm getting the gist that although they're all linux, there are things that make every distro very different.
So just thought i should concentrate on one for now...
Thanks for all you help and i hope this doesnt trun nasty :)