I was doing some experiment about resource-accessing. By mistake, I executed this command, $ sudo mv /etc/passwd /etc/passwd.bak Then I could not execute any command with privilege(eg. sudo mv ...
A while back, I came across a random password generator for the command line that displayed a grid of "memorable" passwords. Output was something like this: adam@host:~$ CantRememberThisCommand ...
Possible Duplicate: Why won't vsftpd let me log in with a virtual user account? I'm trying to configure virtual FTP users along with real users on a server. I installed VSFTP and it ...