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How can I change the computer name on an Ubuntu desktop computer?

I already tried changing the /etc/hostname file but that only caused the wireless to stop working. I found an old guide that suggested changing the setting under networking, but that screen doesn't exist in 9.10 (Karmic Koala).

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3 Answers

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There is a tutorial on Ubuntu Forums: link

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Worked, thanks. – C. Ross Dec 17 '09 at 20:02
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Change both /etc/hostname and /etc/hosts:

gksudo gedit /etc/hostname
gksudo gedit /etc/hosts
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And type hostname "new name" so it's taken into consideration without rebooting. – Raphink Dec 17 '09 at 19:59
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How about sudo hostname "new computer name"

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It doesn't last after reboot. – Raphink Dec 17 '09 at 19:58
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