Sudo command not working

[alphaQ101]

Every time I try to do a sudo command on an Ubuntu server I get this error:

sudo: unable to resolve host shadowlandsmc

This includes logged onto root. Please help because it's posing a huge problem

[Edge100x]

I haven't seen this happen before with sudo. But, you should be able to make your hostname resolve by editing /etc/hosts and adding an entry like this:

127.0.0.1 shadowlandsmc

[alphaQ101]

Thanks edge, that seemed to fix it