HowTo : Clear or Remove Last Login History in Linux
From the following article you will learn how to clear or remove the last login information on a Linux server from the command line.
On the Linux systems there are three standard commands that show the information about last logged in users :
The output of these commands include : login-name, last login time, IP address, port etc.
And sometimes, to keep anonymity, it is required to erase last login history.
|last||/var/log/wtmp||Lists successful login/logout history|
|lastb||/var/log/btmp||Shows the bad login attempts|
|lastlog||/var/log/lastlog||Shows the most recent login|
Remove Information About Last Logins
To remove all the information about the last logged in users, you have to clear the files where this information is kept :
# echo > /var/log/btmp
# echo > /var/log/lastlog
Additionally you may want to clear the history of the last executed commands.