brunowego
commented
9 years ago @hschmidt look a example about what I talk here http://www.macupdate.com/app/mac/40003/hosts
The source code of Hosts here https://github.com/specialunderwear/Hosts.prefpane
A cool feature is a option to enable/disable, think about proxy settings, perhaps the user wish disable at home and in the work enable it!
Thanks!