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502 Proxy Error. Forefront Tmg Denied The Specified Uniform Resource Locator (url). (12202)
Windows 8.1 Enterprise See all trials » Related Sites Microsoft Download Center TechNet Evaluation Center Drivers Windows Sysinternals TechNet Gallery Training Training Expert-led, virtual classes Training Catalog Class Locator Microsoft Virtual Academy Free Windows Server 2012 courses Free Windows 8 courses SQL Server training Microsoft Official Courses On-Demand Certifications Certification overview http 504 MCSA: Windows 10 Windows Server Certification (MCSE) Private Cloud Certification (MCSE) SQL Server Certification (MCSE) Other resources TechNet Events Second shot for certification Born To Learn blog Find technical communities in your area Support Support options For business For developers For IT professionals For technical support Support offerings More support Microsoft Premier Online TechNet Forums MSDN Forums Security Bulletins & Advisories Not an IT pro? Microsoft Customer Support Microsoft Community Forums United States (English) Sign in Home Library Wiki Learn Gallery Downloads Support Forums Blogs We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. Forefront Threat Management Gateway (TMG) Internet Security and Acceleration (ISA) Server 2006 Operations Operations Troubleshooting HTTP 502: The Uniform Resource Locator (URL) does not use a recognized protocol Troubleshooting HTTP 502: The Uniform Resource Locator (URL) does not use a recognized protocol Troubleshooting HTTP 502: The Unif
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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 http://stackoverflow.com/questions/486517/error-code-502-proxy-error-the-isa-server-denied-the-specified-uniform-resourc 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 http://www.tech-faq.com/502-proxy-error.html 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 502 error 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). 502 proxy error 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 discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. asked 7 years ago viewed 18687 times active 3 years ago Blog Stack Overflow Podcast #91 - Can You Stump Nick Craver? Get the weekly newsletter! In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms of service. Related 1Error accessing uncompil
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 against external or internally-based Internet threats, and 2- The client or server computers are 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 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 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 the 502 Proxy Error. Befo