Preventing tresspassing from another machine ???

bipinkdas · 12-21-2004, 04:03 AM

Dear friends

I am a Computer application student. In my college there is 30 computers networked with linux. The version is Fedora core 2. The problem is the other users enter in to my machine using TELNET AND SSH . And they disturbing me by rebooting and like other activities. My question is How can i Prevent them from the unauthorised tresspassing ???

Kindly help

BIPIN DAS

qazzaq · 12-21-2004, 05:50 AM

man iptables
google iptables rules

Capt_Caveman · 12-21-2004, 08:26 AM

Why do the other users know the password for your system? Are the supposed to know it?

If you do not want any users other than root to be able to login, create a /etc/nologin file. If this file exists, then only root can login and the contents of the file will be displayed after root successfully authenticates . However, you should never ever login as root using telnet.