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My little sandbox

UPDATE: This method has been extended and superseded, find out about the “new improved” method here.


Web developers often have reason to fake a host name’s associated IP address by editing their /etc/hosts file.

The peculiarities of the development environment we use here at WordPress.com mean I find myself switching back and forth between two /etc/hosts configurations quite frequently. It started getting annoying to manually go into the /etc/hosts file and uncomment or re-comment entries all the time, so I came up with a quick and dirty solution to shortcut the process.

This solution involves creating two (or more) /etc/hosts files and writing a very short script for each which activates them.

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