Need to set system proxy

[jparker]

I need to set an external proxy that the students will not be able to change.

I have changed auf to generic at boot and then

I have tried modifying /etc/profile with the following script.

http_proxy=http://xxx.xxxxx.com:4646/
https_proxy=http://xxx.xxxxx.com:4646/
export http_proxy https_proxy

Browsers just ignore it.

I also tried creating a script file in /etc/profile.d/ with the same script.

Any help would be appreciated.

[jnetman1]

Setting it so that it can't be changed is tricky, but doable. To make it happen, do the following:

Locking settings is actually pretty easy. Do the following:

Firefox
1. Open a terminal - ctrl-alt-t
2. Type: sudo gedit /etc/firefox/syspref.js
3. Add the following to the end of the file (insert your values where obvious):
lockPref("network.proxy.http", "X.X.X.X");
lockPref("network.proxy.http_port", XXXX);
lockPref("network.proxy.type", 1);
4. Save and exit.

Chrome
1. Open a terminal - ctrl-alt-t
2. Type: sudo gedit /opt/google/chrome/google-chrome
3. Scroll all the way to the bottom line and change it from this:
exec -a "$0" "$HERE/chrome"  "--password-store=basic" "$@"
to this:
exec -a "$0" "$HERE/chrome"  "--password-store=basic" "--proxy-server=X.X.X.X:XXXX" "$@"
4. Save and exit

In Firefox, the settings will appear locked. In Chrome, it will look as though the settings can be changed, however any changes made by the end user will be ignored.