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| 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 Forums http error codes >> [ISA Server 2004 Firewall] >> HTTP Filtering >> Error Code: 502 Proxy Error. Page: 500 internal server error [1] Login Message << Older Topic Newer Topic >> Error Code: 502 Proxy Error. - 26.Oct.2005 8:57:00 AM Messenone Posts: 1 what is my ip 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 Locator (URL). (12202) Can https://support.microsoft.com/en-us/kb/935693 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 http://forums.isaserver.org/Error_Code:_502_Proxy_Error%25/m_330024300/tm.htm 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 connections ...if I open http conection users can jump it ...

a proxy server. The problem is typically caused for one of two reasons: 1 – The Internet Security and Acceleration (ISA) is configured to throw a proxy error to help guard http://www.tech-faq.com/502-proxy-error.html against external or internally-based Internet threats, and 2- The client or server computers are http://stackoverflow.com/questions/486517/error-code-502-proxy-error-the-isa-server-denied-the-specified-uniform-resourc misconfigured or using outdated software. What is a 502 Proxy Error? A 502 proxy error is typically thrown in the HTTP cycle. When the error occurs, a server (does not have to be a Web server) is filling a role similar to a proxy or a gateway server. When a client computer sends an HTTP request (typically a proxy error web browser, but can be any software application that is capable of making an HTTP request), it will pass through the server in order to obtain access to the desired URL. The proxy or gateway subsequently receives a 502 error, or invalid response, from the server located “upstream” in the attempt to fulfill the client request. The majority of the time the error is thrown, the upstream server is functioning appropriately. The proxy 502 proxy error or gateway and upstream servers just cannot agree on the appropriate protocol for exchanging the information requested in the original client HTTP request. In many of these cases, either the proxy or upstream server are not configured correctly or are running incompatible software. Why Does a 502 Proxy Error Get Thrown? During a typical web browsing session, the following is an example of the classic HTTP cycle when a client computer and web server are communicating: Client Computer: The IP address of the desired website will be obtained from the URL of the site from the DNS server. Client Computer: The computer obtains an IP socket connection to the desired IP address and then sends an HTTP data stream through the IP address. Web Server: HTTP data is sent back to the client computer in response to the original HTTP request. The HTTP response will include status codes and other useful information for the client computer. Client Computer: If there is an error in the client’s request or server’s ability to respond, there will be an HTTP error code of 502 included in the server’s response (502 Proxy Error). How to Fix 502 Proxy Errors (Client Side) One of the most frustrating things for the average computer user is determining where the problem resides when receiving t

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202) up vote 0 down vote favorite I am getting above error in some machines but not in some machines while accessing the documents. http proxy isaserver share|improve this question edited Mar 25 '09 at 22:53 Bravax 8,47762962 asked Jan 28 '09 at 4:49 Santosh add a comment| 2 Answers 2 active oldest votes up vote 0 down vote accepted More information in your question might help, but after a quick google I found this forum which may answer your question (there appears to be a hotfix that may help). share|improve this answer answered Jan 28 '09 at 6:02 Marc Novakowski 30.4k64957 Thanks, actually in a single network from some machines I am able to access the documents present in a website correctly but from some machines for other users not able to, they are getting this error 502 –Santosh Jan 28 '09 at 6:09 add a comment| up vote 1 down vote Open the ISA server2006 and create a role and allow networks internal to allow internal and external. Restart isa services, and it will be work fine. share|improve this answer edited Nov 8 '12 at 11:41 Tom 1,4961221 answered Oct 27 '11 at 8:07 rupesh 211 add a comment| Your Answer draft saved draft

 

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