Actually no. Its purely technical. Here are the steps :- 1. Limit user privileges http://linux.die.net/man/5/limits.conf http://linux.die.net/man/5/limits.conf

Actually no. Its purely technical. Here are the steps :- 1. Limit user privileges http://linux.die.net/man/5/limits.conf http://linux.die.net/man/5/limits.conf 2. Create a jailed environment & copy limited binaries in the environment for him to execute http://olivier.sessink.nl/jailkit/ http://olivier.sessink.nl/jailkit/ It is pretty big a technical problem. Most of the server selling guys anyway do the above things. They miss the web based shell though.