"unable to resolve host" when using sudo BUT I didn't change the name of my computer | pressku.com

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When I usage sudo successful nan terminal I get nan correction for illustration nan below:

eddie@eddie-hp:~$ sudo aptitude safe-upgrade sudo: incapable to resoluteness big eddie-hp: Name aliases work not known

The action past completes normally. I didn't alteration nan sanction of my machine truthful I don't cognize what happened aliases really to hole it. Any ideas arsenic to really to troubleshoot aliases resoluteness this