http://ysshlyesehcnscptskrpai4iupxccuvfcpbxk37kclbs3rsaqmolzaid.onion/torify.html
Its free software and available on all unixes, via the package managers. 1) install tor (duh) 2) edit the /etc/tor/torrc file as follows: 2.1) Change the line that says "#ControlPort 9051", so it says "ControlPort 9051" (this is so torify can control the Tor program) 2.2) Change the line that says "#CookieAuthentication 1" so it says "CookieAuthentication 0" (so torify does not need to authenticate to your Tor program) 2.3) Save the file 3) Restart tor (e.g.