When I login to SSH and push the up arrow, the previous commands are shown. How do I clear or delete that log?
Clear the history for current login or current user.
#history -c
First find the history file for particular user.
Delete .bash_history file, will be recreated again next time.
#locate .bash_history
#rm .bash_history
It is not a best practice to totally disable the ssh command history on any dedicated server or vps server. It’s a quick reference to user’s past actions on server.