com.apple.ichat.plist lockdown

Hi Guys

I know this sounds really strange but I want to know if anyone had any ideas how to lock down and keep locked down the com.apple.ichat.plist file under ~/Library/Preferences folder. Basically I am IT technician in a school. We use bonjour ichat out here which is great and works great, but the students delete their com.apple.ichat.plist file which starts the ichat setup up again and they use obscenities in the user name field, which displays as their user name when logged into ichat. I have played around with it and it seems to recreate itself quite easily when you lock it down. Any Ideas would be great
Thanks in Advance

Set user accounts that are "guest" accounts.. and NOT "Admin" accounts....

RIDE said:

Set user accounts that are "guest" accounts.. and NOT "Admin" accounts....

Click to expand...

The accounts are managed mobile accounts. Admin is not turned on. Do you have any other ideas? Thanks

beardiebeardie said:

The accounts are managed mobile accounts. Admin is not turned on. Do you have any other ideas? Thanks

Click to expand...

Here's another idea... In terminal type:

sudo chflags schg

Then drag the .plist file you mentioned above, and drop it in Terminal.

Press Enter

You will be prompted for your password. (you will NOT see the characters as they are typed). After entering your password press enter.

Does that work for what you are wanting?????

Thanks I owe you a beer or two. That is exactly what I wanted

Glad it helped keep those pesky kids from using explicit screen names