Hi, I am new in here and the security world and stuff I hope some of you will answer a few of my questions and satisfy my curiosity

1. If I am the admin of a win2k domain is there any way to change all the local computer's administrator's password other than going to each pc and changing it or remote controlling everyone and changing it...?

2. Is there any way of logging all connections and/or files accessed on a win2k pro/server pc? Event viewer is'nt exactly helpful :/

3. Is a proxy server which blocks stuff by detecting words secure enough? Is there any way to bypass it?

Lastly since I have almost zero knowledge of routers and stuff and I heard cisco is the preffered one around, is there any specific suff for me to read and/or are there any free router/firewall simulators or something to d/l and practise on?

Thanx.