Why Permission automatically changes?

[manasa]

Hai to all

I am working in a college where there is a lab in which 30 machines are installed fc11.
During last 2 weeks I don't know because of what the users themselves loses the chmod 700 permission . When it is set to chmod 700 /home/username it works. But after a few days it again loses permission . How it can be resolved?

[glennzo]

Since there is a reply to your other post (duplicate) I'll close this one.