Originally posted by: pitupepito2000
I am interested broadly in computers I like administration and this pc is in a network and I am going to look into ways to provide a secure network and also to enhance security.
A bridging firewall might be interesting, then. That would fit into pretty much any network setup and let you see exactly what kind of traffic is going in and out of your network. I tend to like OpenBSD's PF for that sort of thing, though, which gets you back into learning a new system. Are you already running any public services that you want to secure? There's lots you can do as far as security, but it's hard to say what would be productive for you without knowing what you're already doing. At the least, a first step to any real work in network security is thoroughly understanding TCP/IP (routing, subnets, ports, protocols, etc.). Working with routers and firewalls is good way to do that if you need to.
I have one old computer with 512 MB in it's hard drive. What should I do with it?
Bleh. Sounds old. Very old. I might suggest scouring computer shops for a $50 Pentium/PentiumPro with some more livable specs. It's not that you
can't do anything with an old system like that. But when you're learning and experimenting, you tend to make mistakes. Repeatedly. Which means doing things over a number of times. And at some point, a really old system just bogs you down and takes you away from what you're trying to learn.