Change Hostname on Ubuntu

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When you setup your computer at the time of your initial Ubuntu installation, you assign your computer a hostname. In my case, I gave it a hostname and then later wanted to change it to something else. This is accomplished in two easy steps.

First,

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sudo emacs /etc/hostname

, and overwrite the hostname with the new hostname. This will make it so the correct name is show when running the hostname command. Second,

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sudo emacs /etc/hosts

, and overwrite the hostname here. This will allow you to use sudo successfully and network applications to run. This was done on Ubuntu 9.10 (Karmic).

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