all commands of all users

["adel essafi laposte net" <adel essafi laposte net>]

Dear all
I am managing a fedora server in a high school. users connect to the server
through ssh.
I want to know if it is possible to configure the server so that I get all
the command line they type in real type. 
the .bash_histoty is not a reliable solution because, it is updated after
logout and the user can erase it. 
Is there another way?


Thanks, in advance,  for help.


Adel




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