I am interested in this as well - TY

me too

me too

I believe there isn't a way to do this, unless you are doing it thru WiFi interface only. I don't know why JAMF hasn't set this as a Configuration profile setting. Hopefully in Version 9, the will.

I found this somewhere else on Jamf Nation

com.apple.systempreferences
Enabled System Preference Panes

If you put in below
and replace
youraddress with your address for your proxy, don't forget
<integer>1</integer> means set
<integer>0</integer> means not set

But i found that by doing this it disables everything in system preferences which I don't want... Im trying various combo's to try and keep everything enabled but having the proxies set....

<dict>
<key>ExceptionsList</key>
<array>
<string>*.local</string>
</array>
<key>ProxyAutoConfigEnable</key>
<integer>1</integer>
<key>ProxyAutoConfigURLString</key>
<string>youraddress</string>
<key>HTTPEnable</key>
<integer>1</integer>
<key>HTTPPort</key>
<integer>8080</integer>
<key>HTTPProxy</key>
<string>youraddress</string>
<key>HTTPSEnable</key>
<integer>1</integer>
<key>HTTPSPort</key>
<integer>8080</integer>
<key>HTTPSProxy</key>
<string>youraddress</string>
<key>FTPEnable</key>
<integer>1</integer>
<key>FTPPassive</key>
<integer>0</integer>
<key>FTPPort</key>
<integer>8080</integer>
<key>FTPProxy</key>
<string>youraddress</string>
<key>SOCKSEnable</key>
<integer>1</integer>
<key>SOCKSPort</key>
<integer>8080</integer>
<key>SOCKSProxy</key>
<string>youraddress</string>
<key>RTSPEnable</key>
<integer>1</integer>
<key>RTSPPort</key>
<integer>8080</integer>
<key>RTSPProxy</key>
<string>youraddress</string>
<key>GopherEnable</key>
<integer>0</integer>
<key>GopherPort</key>
<integer>0</integer>
<key>GopherProxy</key>
<string></string>
</dict>

http://macmule.com/2011/09/09/how-to-change-the-automatic-proxy-configuration-url-in-system-preferences-via-a-script/