Host Names on Ubuntu Server
Fix issue of sudo: unable to resolve host
Probuse Admin
We had issue in ubuntu VPS server when make sudo:
sudo: unable to resolve host sXXX-YY-ZZ-ZZ.secureserver.net
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How to find hostname of your ubuntu server:
root@ sXXX-YY-ZZ-ZZ:~# sudo vi /etc/hostname
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Solution:
Two things to check (assuming your machine is called sXXX-YY-ZZ-ZZ.secureserver.net, you can change this as appropriate):
That the /etc/hostname file contains just the name of the machine.
That /etc/hosts has an entry for localhost. It should have something like:
127.0.0.1 localhost.localdomain localhost
127.0.1.1 sXXX-YY-ZZ-ZZ.secureserver.net
