[gptalk] Re: Proxy Setting Sticking

  • From: TAZAMAL HUSSAIN <tazamal_hussain@xxxxxxxxxxx>
  • To: <gptalk@xxxxxxxxxxxxx>
  • Date: Fri, 19 Dec 2008 14:51:26 +0000

Well this it... there are lots of workarounds... but what I am really trying to 
get at it is undertanding why this is actually happening, because all I have 
read around Group Policy, it shouldn't. It should just be a matter of removing 
the policy and settings should disappear on the client side shouldn't they...?

From: dave.sharples@xxxxxxxxxxxxxxxxx: gptalk@xxxxxxxxxxxxxxxxx: Fri, 19 Dec 
2008 14:45:24 +0000Subject: [gptalk] Re: Proxy Setting Sticking

Could you consider using a pac file and putting some logic in there as a 
workaround, if a specific machine name is listed, set a proxy, otherwise don’t?
Tad messy probably

From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On 
Behalf Of Shane WillifordSent: 19 December 2008 14:43To: 
gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Re: Proxy Setting Sticking
Hmm…not sure why this is, but when dealing with proxy and my remote (i.e. 
laptop) users, what I did was create a simple script that modifies the proxy 
settings. I placed a batch file in the Startup folder, then ‘called’ a .reg 
file from a ‘Support’ folder local to the PC that disables all proxy settings. 
It took me sometime to 1. find the reg key, then 2. to modify it to disable all 
that I wanted. I’m sure you could use the same process but for org-wide just 
place the files in a login/startup script.

Shane M. Williford
Systems Administrator
MCSE, MCSA Sec, Sec+, Net+, A+
Mazuma Credit Union
9300 Troost
Kansas City, MO 64131
816-361-4194 x6012

From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On 
Behalf Of Darrell WiebesickSent: Friday, December 19, 2008 8:37 AMTo: 
gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Re: Proxy Setting Sticking
We have had the same problems trying to use this at customer sites. We used it 
for ‘naughty students’ to restrict the internet for a period of time using a 
‘fake proxy’. However, when we move the students back to their OU, the students 
would still be restricted from the internet even after many reboots over 
several weeks.
I have all but given up on this as a useful solution to restrict internet. It 
acts like a preference and not a policy.  I am very interested in using this at 
our customer sites that want a quick way to temporarily restrict internet 
access by having a fake proxy apply to the ‘naughty OU’ and have internet 
available when the individual is moved back to their regular OU.
If anyone has a workable solution, please share it.

  "ProActive IT Solutions” 
Darrell Wiebesick   MCSENetrix Information Technologies, Inc.1323 23rd Street 
South Suite HFargo, ND 58103Phone (701) 298-0175Fax (701) 298-0189Toll Free 
(877) 638-7492HP Agent # 5871590001
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From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On 
Behalf Of James F. PrudenteSent: Friday, December 19, 2008 8:00 MorningTo: 
gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Re: Proxy Setting Sticking
It’s been some time since I had to deal with this, but what you’re describing 
is exactly what we went through when removing a proxy.

From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On 
Behalf Of TAZAMAL HUSSAINSent: Thursday, December 18, 2008 6:36 PMTo: 
gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Re: Proxy Setting Sticking
Guys, Thanks so far... Well its definately odd becuase if we apply a GPO with 
Proxy Settings, the Proxy Settings obviously take place at the client side. 
When we remove it the settings stick. The only way I have got the settings back 
to normal (i.e. no Proxy Settings applied) is to actually open the Proxy 
Setting up, do not configure it at all (yes! just open it up and leave it all 
blank) and then save it back to a group policy and apply it to the OU!!!... the 
client then takes the new value (which is blank)... its almost as if you are 
going to configure it but then change your mind and do nothing. Its weird, as 
you'd expect it to be removed but instead you have to go back and create a 
blank proxy setting GPO and apply that. The only way round so far I have 
managed is to create 2 GPO's... one with Proxy Settings and One with No Proxy 
settings (by this I mean creating a new GPO and opening the Proxy Settings 
section and not filling it out and saving the GPO as that) and then filtering 
this against AD security groups.... then populating users who should be proxied 
and users who can use the local gateway out to the Internet... Could it be my 
environment...I wonder

From: syspro@xxxxxxxxxxxxxxxxxx: gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Re: 
Proxy Setting StickingDate: Fri, 19 Dec 2008 08:18:07 +1100

Hi Taz,
My understanding was that the IE settings just built INS files (Install.INS, 
SecZones.inf, Authcode.inf, Programs.inf ) and then ran them when the policy is 
applied. There is no process to back up your old settings and reapply them when 
the GPO is no longer applied.
Only Non tattooed Admin Templates have true reversal of settings. Group Policy 
Preferences support “Delete setting when not applied” which is slightly 
different to “Replace original setting”
Darren may be better informed. If so, I would be interested to hear the 
mechanism used by IE to back out settings.   
Alan Cuthbertson
 Policy Management Software (Now with ADMX and Preference support):-
ADM Template Editor(Now with ADMX support):-
Policy Log Reporter – including Preference logging(Free)

From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On 
Behalf Of TAZAMAL HUSSAINSent: Friday, 19 December 2008 4:43 AMTo: 
gptalk@xxxxxxxxxxxxxxxxxxxx: [gptalk] Proxy Setting Sticking
Hi Guys, HAs anyone come across setting IE Proxy Settings via Group Policy and 
the setting sticking when the policy is removed or setting is blanked out? TazH

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