Debian

Debian and other debian-based distros like Ubuntu have, by default, has the root account disabled as a security measure.(thanks to Subbu and PICCORO for the clarification) To re-enable the root account, just open the command prompt, and type sudo passwd root You’ll get the following set of messages: sathya@sathya-laptop:~$ sudo passwd root<br /> Enter new UNIX password:<br /> Retype new UNIX password:<br /> passwd: password updated successfully<br /> sathya@sathya-laptop:~$ To disable root access, just type