greeting fellow computer people,i'm new to this site but not to computers and since getting roadrunner my interest in security has increased.there are a couple of things i would like some help with.

1)how can you manually close ports with win98fe?
2)what is an easy way to set up a proxy server?
3)i've recently found several site that tell you how to turn an older system into a router using linux i haven't had time to try it yet,has any one else done this?