In Linux and Unix operating system, it’s possible to use “last” command to display and show the last logged in (and out) users history, and “lastb” command to show and display all the bad login attempts. The users’ login history is been logged and saved in wtmp file while faild login attempts is been stored in btmp file, both files usually located in /var/log directory. … Continue reading How to Clear and Delete Last Logged In Users and Bad Login Attemps Log (wtmp and btmp)