Maintain different versions of your /etc/hosts file.
NetLocation X... Tired of changing your /etc/hosts file every time you change network location, finding lookupd's pid and restarting it to clear its cache? This utility addresses these needs, especially if you own a laptop!
It lets you maintain different versions of your file, for as many "Network Location" you have configured. NetLocation X's monitor intercepts network change notifications sent by the kernel and updates your system automatically.