Changing hostname on Ubuntu Server 10.04LTS

I found out the hard way that it's changing the name of an Ubuntu Server 10.04LTS was not as straight forward as I initially thought. To save you and me the trouble and for future reference, I document how I did it here.

hostname NEW_NAME
echo NEW_NAME > /etc/hostname
cat /etc/hosts | sed s/OLD_NAME/NEW_NAME/g > /etc/hosts.new
mv /etc/hosts /etc/hosts.old
mv /etc/hosts.new /etc/hosts

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