How to see Login history?
Is it possible to see the login history, i mean to see if someone has used the computer in my absence and when he used it .
if it is possible, where can i get the log ?
if not, is there a program that logs all the logins and their time ?
Solution 1:
/var/log/auth.log
That contains a lot more than just plain logins (sudo calls, etc) but logins are in there too. It's protected so you'll need to be root to read it:
sudo less /var/log/auth.log
Solution 2:
As Suhail mentioned in a comment, the last command will show a listing of last logged in users.