Need pseudo connectivity

Hi All,

I have putty on my system (Vista). I need some server details to login via internet for my personnel practice. Can any body help me out.
In case this not feasible, just let me know any other way to work with UNIX terminal on Windows Vista itself.
Please help me since i am desparately searching for any way out.

putty is a tool to do telnet or ssh, I doubt you work in a company that would accept peopple connecting over internet.. which makes me think more you are looking for something to do some VPN, google around on IP Tunnelling and VPN documentation

I dont need to connect from my office, instead my pupose is to practice on my home PC.

Your home PC to where?