Isa 502 Proxy Error 12202
| Address Book | Member List | Search | FAQ | Ticket List | Log Out Error Code: 502 Proxy Error. Users viewing this topic: none Logged in as: Guest Tree Style Printable 502 proxy error. forefront tmg denied the specified uniform resource locator (url). (12202) Version All Forums >> [ISA Server 2004 Firewall] >> HTTP Filtering >> Error Code: 502 asa 502 Proxy Error. Page: [1] Login Message << Older Topic Newer Topic >> Error Code: 502 Proxy Error. - 26.Oct.2005 8:57:00 AM the isa server denied the specified uniform resource locator (url). (12202) Messenone Posts: 1 Joined: 26.Oct.2005 From: CYPRUS Status: offline Hi everyone. I am new to this and I need help.I got the following message. Error Code: 502 Proxy Error. The ISA Server denied the specified isa 501 Uniform Resource Locator (URL). (12202) Can someone help? I am trying to run a software that has its own broswer and I am unable to fix this problem.Anyone knows something that can help me?Thanks in advance! Post #: 1 Featured Links* RE: Error Code: 502 Proxy Error. - 3.Nov.2005 9:55:00 AM tshinder Posts: 50013 Joined: 10.Jan.2001 From: Texas Status: offline Hi Messenone,What software and what site?Try configuring that site for Direct Access.HTH,Tom (in reply to Messenone) Post #: 2 RE: Error Code: 502 Proxy Error. - 2.Dec.2005 5:36:31 PM gregors Posts: 2 Joined: 2.Dec.2005 Status: offline hi tshinder, I have the same problem... I have added Ip range for direct access but I always get the same error/response Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202) What else can i do? thanks G (in reply to tshinder) Post #: 3 RE: Error Code: 502 Proxy Error. - 2.Dec.2005 5:38:31 PM LLigetfa Posts: 2187 Joined: 10.Aug.2004 From: fort frances.on.ca Status: offline monitor your ISA log for what rule is denying it and adjust the rule or rule order. _____________________________The School of Hard Knocks is a mean teacher. She gives the exam before the lesson. (in reply to gregors) Post #: 4 RE: Error Code: 502 Proxy Error. - 27.Mar.2006 1:25:38 PM siachori Posts: 2 Joined: 27.Mar.2006 Status: offline hi! I have the same problem... Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202) I have seen at logging screen and i see proxy connection 8080 acepted nad denied http connection. Do I have to open http conection for IP client? I donīt want to use
22, 20111 Share 0 0 Hi there,
I would like to talk about an issue that I have dealt with recently regarding Internet Explorer and displaying TMG error messages. The problem reported was that newer IE versions (like 8 or 9) didn’t display the regular TMG error message which is displayed when the access rule allows certain users and the current user is not one of the allowed users (Error Code: 502 Proxy Error. The Forefront TMG denied the specified Uniform Resource Locator (URL). (12202)),instead the "Page not found" error was displayed and that was causing some help desk calls since the user thought http://forums.isaserver.org/Error_Code:_502_Proxy_Error%25/m_330024300/tm.htm that the target web site was not reachable based on the displayed error message whereas the real problem was user was not allowed to accessthe given web site. IE6 didn’t have the same problem. Then we started investigating the problem from TMG perspective to make sure that it wasn’t something stemming from TMG server side. After some further troubleshooting (network traces), we found out that TMG was https://blogs.technet.microsoft.com/nettracer/2011/09/22/internet-explorer-doesnt-display-isa-or-tmg-error-message-502-when-connecting-to-https-servers/ sending the regular error page back to the client but somehow it wasn’t displayed by the IE client. Then we focused on the IE side. After some further investigation, I found out that it was the expected default behavior for newer Internet Explorer versions (8 and 9, we haven’t tested 7 but this might apply to 7 as well) for security reasons. You can find below more information about the vulnerability that could be exploited when IE uses Proxy servers to connect to target servers: Pretty-Bad-Proxy: An Overlooked Adversary in Browsers’ HTTPS Deployments Having said that, there’s a registry key which allows you to turn this enhanced security feature off in newer IE versions. You can see the details below on how to do this on the client machines: http://msdn.microsoft.com/en-us/library/ms537184(VS.85).aspx Introduction to Feature Controls - You’ll need to create the highlighted key at the given path on a client machine: HKEY_LOCAL_MACHINE (or HKEY_CURRENT_USER)SOFTWAREMicrosoftInternet ExplorerMainFeatureControl FEATURE_SHOW_FAILED_CONNECT_CONTENT_KB942615 (Note: you’ll also need to create that registry key under “FeatureControl”) Reg key name: Iexplore.exe Type: REG_DWORD Value: 0x00000001 You can also get some more information at http://msdn.microsoft.com/en-us/library/dd565641(VS.85).aspx#eventLog Event 1065 - Web Proxy Error Handlinfor Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive https://www.experts-exchange.com/questions/23738757/ISA-2006-Error-Code-502-Proxy-Error-The-ISA-server-denied-the-specified-URL-12202.html Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers http://www.tech-archive.net/Archive/ISA/microsoft.public.isa/2008-08/msg00040.html Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > ISA 2006 - Error Code 502 Proxy Error. The ISA server denied the specified URL 12202 502 proxy Want to Advertise Here? Solved ISA 2006 - Error Code 502 Proxy Error. The ISA server denied the specified URL 12202 Posted on 2008-09-17 MS Forefront-ISA Windows Networking 1 Verified Solution 5 Comments 9,295 Views Last Modified: 2011-08-18 Error Code 502 Proxy Error. The ISA server denied the specified Uniform Resource Locator (URL) (12202) I am 502 proxy error getting this error returned to proxy clients on a unihomed ISA 2006 server setup only as a web proxy. All HTTP, HTTPS, and FTP traffic is allowed in and out. What's up with this? I have no ACLs filtering websites or anything. 0 Question by:Pugglewuggle Facebook Twitter LinkedIn Google LVL 12 Best Solution byPugglewuggle Good news! It appears to be working fine now. This was related to a DNS issue with our ISP... DNS requests were getting dropped and that's why the site was "not found" and therefore "denied" by ISA! Go to Solution 5 Comments LVL 33 Overall: Level 33 Windows Networking 8 MS Forefront-ISA 3 Message Expert Comment by:MikeKane2008-09-17 Is this to all sites, http and https? Have a look at this KB to begin with: http://support.microsoft.com/kb/936594 Do you have any rules setup in the proxy ? 0 LVL 33 Overall: Level 33 Windows Networking 8 MS Forefront-ISA 3 Message Expert Comment by:MikeKane2008-09-17 You can also try these suggestions from Microsoft: https://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.i
- installed hotfix and edited registry key (there was no entry RAT in HKLM\Software\Microsoft, create the additional entries from there) - cleared the DNS cache - cleared the web proxy cache - installed the firewall client and added *.sun.com to the exceptions - disabled compression I still get the error when trying to download the SUN JRE, here is the direct link: http://dl8-cdn-01.sun.com/s/ESD44/JSCDL/jdk/6u7/jre-6u7-windows-i586-p-s.exe?e=1218525172189&h=3b01a4e56c8fe5cc79a7187681f8de04/&filename=jre-6u7-windows-i586-p-s.exe If I disable the rule and use the above link, I'm prompted to save or open the file. Enable the rule, and I get error 502 (12202) again. I collected the cab file with IsaBPA, took a screenshot and captured the log files. I zipped all this and just sent it to your e-mail address. For now, I will restore the ISA server settings (logging, compression). Any other suggestions are welcome. Thanks for your help! Kind regards, Dagwin -- Dagwin "Terence Liu [MSFT]" wrote: Hello Customer, Thank you for posting here. According to your description, I understand that you get error "502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202)" when you access some web sites after you enabled a deny rule for some other domain name sets. If I have misunderstood the problem, please don't hesitate to let me know. Based on my research, I suggest we try the following steps to see if we can resolve this issue: I. Please apply the following hotfix: An ISA Server 2006 Web Proxy client receives error code 502 when a user tries to visit certain Web sites http://support.microsoft.com/kb/935693 As per the KB935693, we need to create the registry key in the registry of the ISA servers. The path is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RAT\Stingray\Debug\Web Filters. And the registry key can be created as follows, Value name: DROP_CONTINUATION_LINES Value type: REG_DWORD Value data: 1 Then, test this issue. II. If the issue persists, please clear DNS cache and Web Proxy cache on ISA Server. a. Clear the DNS cache of the ISA server. Please download and run the script from: http://www.isatools.org/tools/ClrDNS.cmd b. Clear the ISA web proxy cache: How to delete the Web cache in Internet Security and Acceleration Server http://support.microsoft.com/default.aspx?scid=kb;en-us;838248 III. Please make sure all the internal clients are configured as both web proxy client and firewall client: To be a Web Proxy client, please op