sudo: unable to resolve host [hostname]

  • Posted March 17, 2014

Hi there,

I just created my first droplet today. I added an user and give it root privileges. Whenever I “sudo”, I get “unable to resolve host [myhostname]”. Although my command is executed fine, I still want to get rid of this?

Belows are my /etc/hostname and /etc/hosts

knguyen@knguyen:~$ cat /etc/hostname knguyen knguyen@knguyen:~$ cat /etc/hosts localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters


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Even I have similar issue, Here is the following if type “cat /etc/hosts” in CLI localhost ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters fevertags_pi

Here fevertags_pi is the host name. When I try to edit this, it says permission denied and I’m not able to add anything

You may add your domain name to your /etc/hosts

like this

knguyen@knguyen:~$ cat /etc/hosts knguyen

Thanks a lot!

This comment has been deleted

Thanks, I got it now.