I was wondering what free version on linux is the most stable and works the best with a Dell poweredge 2400 with dual P3s with about 512MB ram? I have always used redhat, but I am alittle confused on what is going on with redhat? Did they stop their free versions, and now handed it over to Fedora or what?
Fedora Core linux is in fact (from what many have stated awhile now) developed by redhat. However with unix I would recommend going with the FreeBSD legacy stable branch at this point in time. Either using FreeBSD legacy stable (4.11-STABLE) or the latest newer edition stable branch (5.4-STABLE) would more then likely be your best way to go. FreeBSD 5.4 without a doubt should run great on a dual p3 with a proper smp kernel installed.
Wishing you the best in your decision of OS choice.
apparently nobody else thought it pertinent, but what is the box going to be used for? That's the biggest determinate of what you will use for the o/s. What apps do you need installed? Do you need a gui interface? (I'm assuming it's remote and you can handle CLI).
SMP==symmetric multi-proccesing if I remember right. SMP==2 or more CPU's (or, technically, Hyper-threading on intel CPU's).