For some unkown reason my su password is getting rejected. it is the right password, there are no ssh conections or anything. I get authentication failure.
tried sudo su, but my user is not a 'sudoer'.
Tried to look at /var/log/syslog but authentication needed so no help as to why this happened.
Any help would be great. plus an explanation would also help.
tried exec sudo su, and after entering a correct password it just kicks me out of terminal