I have a machine with Ubuntu 14.04.2. It has PostgreSQL installed. My user can
sudo. If I do
sudo su postgres, I get the following on the screen and it switches me to the
su: Autentication failure
Functionally, it is still working. But I would like to find out what is causing this output and I'm not sure where to look.
If I do
sudo -i -u postgres it does not give the
Access denied output.