502 Proxy Error Isa
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2008] I've been seeing more of these lately. Enough so that I figured I'd take some time to figure out what the problem is. It turns
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out that if you're going through an ISA firewall, that you'll see this 502 proxy error chrome error when the Web server includes a response that includes an HTTP header with a space or tab at 502 proxy error web service the beginning of the header (this is a Web server problem, not a problem with your ISA firewall). However, you can change the way the firewall works so that it's more forgiving https://support.microsoft.com/en-us/kb/935693 of this error. Check out the solution over at: http://support.microsoft.com/default.aspx?scid=kb;EN-US;935693 HTH, Tom Thomas W Shinder, M.D., MCSESr. Consultant / Technical Writer Prowess Consulting www.prowessconsulting.com PROWESS CONSULTING | Microsoft Forefront Security SpecialistEmail: tshinder@isaserver.org MVP — Forefront Edge Security (ISA/TMG/IAG) See Also Review and Comments Name * Email address * URL * Comment * If you enter anything in this field your comment will be treated as http://www.isaserver.org/blogs/shinder/isa-central/502-proxy-error-http-message-includes-an-unsupported-header-768.html spam * * Required field The Author — Debra Shinder DEBRA LITTLEJOHN SHINDER, MCSE, MVP (Security) is a technology consultant, trainer and writer who has authored a number of books on computer operating systems, networking, and security. Latest Contributions Last Chance to Sign up for the Webinar Windows 2003 End of Life Risks and Considerations 18 Aug. 2015 The KEMP Free LoadMaster 3 March 2015 Last chance to sign up for the webinar: Preventing High Cost Security Breaches 24 Feb. 2015 2015 State of IT Changes Survey 16 Feb. 2015 Celestix rides to the rescue of TMG/UAG users 4 Dec. 2014 Featured Links Newsletter Subscription By subscribing to our newsletters you agree to the terms of our privacy policy Never miss an article by subscribing to our newsletter! The No.1 Forefront TMG / UAG and ISA Server resource site By subscribing to our newsletters you agree to the terms of our privacy policy ISAserver.org Sections Articles & Tutorials Blogs FAQs Hardware KBase Tips News Newsletters Our Authors Site News Software White Papers Featured Products Advertisement Featured Book Order today Amazon.com Articles & Tutorials View All Feed Articles Certification Configuration - Alt. Products
| 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 Version All http://forums.isaserver.org/Error_Code%3A_502_Proxy_Error%25/m_330024300/tm.htm Forums >> [ISA Server 2004 Firewall] >> HTTP Filtering >> Error Code: 502 Proxy Error. Page: [1] Login Message << Older Topic Newer Topic >> Error Code: 502 Proxy Error. - 26.Oct.2005 8:57:00 AM Messenone https://www.experts-exchange.com/questions/23738757/ISA-2006-Error-Code-502-Proxy-Error-The-ISA-server-denied-the-specified-URL-12202.html 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 Uniform Resource 502 proxy 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 502 proxy error 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 don´t want to use it due to websense. Websense only filters 8080 conn
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 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 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 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 9,252 Views Last Modified: 2011-08-18 Error Code 502 Proxy Error. The ISA server denied the specified Uniform Resource Locator (URL) (12202) I am 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.isa&tid=5693ec07-2576-4ad9-9ecd-fe01c335ab49&cat=&lang=&cr=&sloc=&p=1 0 LVL 11 Overall: Level 11 MS Forefront-ISA 6 Windows Networking 1 Message Expert Comment by:EricTViking2008-09-17 Have you configured your access rule to allow http,https from internal to internal? 0 LVL 12 Overall: Level 12 MS Forefront-ISA 2 Windows Networking 1 Message Author Comment by:Pugglewuggle2008-09-17 Yes, rules are setup to allow internal and localhost to internal for the proxy. There is no user authentication, all ano