I have launched two joomla jumpboxs, enabled SSH, not changed anything.
I launched joomla 1.5.23 and 1.6, two different IP addresses etc

When I try and run sudo on either one, it asks me for a password.
I type in the same password used for admin and it says

"Sorry, try again"

I can sftp, I can ssh fine, just sudo refuses to work for me.

Doing my head in, wasted a whole day trying to work out what's wrong.

Can someone let me know?