What's the cause / reason of: "unable to resolve host WS24 !?

[jsan4christ]

sudo is very unhappy if it cannot resolve the system hostname.  The fix
is to make sure /etc/hosts has an entry for the hostname.  In your case
the top of the file should look like this:

127.0.0.1	localhost
127.0.1.1	WS24


Now, editing /etc/hosts is difficult if sudo doesn't work for you. 

use gksudo gedit /etc/hosts

this should give you a provide you with dialog to authenticate and then the
page to edit.

cheers!


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