502 Proxy Error The Request Is Not Supported
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the web proxy clients ★★★★★★★★★★★★★★★ Suraj Singh MSFTApril 17, 20100 502 proxy error apache error reading from remote server 0 0 0 This is on ISA /TMG product blog(http://blogs.technet.com/b/isablog/archive/2010/05/24/error-502-proxy-error-the-request-is-not-supported-50-while-trying-to-access-websites-from-web-proxy-clients-behind-isa-server-2006.aspx) Comments (0) Cancel reply Name * 502 proxy error reason error reading from remote server Email * Website Follow UsPopular TagsBy pass ISA/TMG UAG Teredo high load windows update fails with 80072f8f on TMG WPAD FIM Oracle MA set up autodetect Pass The Hash IPSEC TMG VMware
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VSE ePO General Google Chrome OS Uncategorized UPS Backup Exec ← Not so muchresting… Active Directory Certification Authority not renewingcertificate → Error Code: 502 Proxy Error. The request is not 502 proxy error chrome supported.(50) September 17, 2009 Leave a comment As referenced in my last post, I 502 proxy error web service had a problem with viewing a website. Whenever someone tried to view the site at work they got "Error Code:
502 Proxy Error Apache Reverse Proxy
502 Proxy Error. The request is not supported. (50)" The error is coming from Microsoft ISA Sever 2004, to fix this you need to enable the compression filter in ISA Server 2004 Configuration > https://blogs.technet.microsoft.com/sooraj-sec/2010/04/17/502-proxy-error-the-request-is-not-supported50-while-accessing-websites-from-the-web-proxy-clients/ Add-Ins > tab Web Filters > properties Compression Filter > select Enable This filer. > Ok > Apply. This not only fixed the 502 proxy error but also an issue with pages appearing "stripped down" ie only text, no images. Share this:ShareFacebookTwitterGoogleLike this:Like Loading... Related Filed under ISA Sever 2004 Tagged with ISA Server 2004, Microsoft About Phill McSherryPhill McSherry has been working in the Australian IT https://restingsysadmin.wordpress.com/2009/09/17/error-code-502-proxy-error-the-request-is-not-supported-50/ industry for over 20 years and is the technical manager and solutions architect for managed services provider Titan Solutions - www.titansolutions.com.au Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. (LogOut/Change) You are commenting using your Twitter account. (LogOut/Change) You are commenting using your Facebook account. (LogOut/Change) You are commenting using your Google+ account. (LogOut/Change) Cancel Connecting to %s Notify me of new comments via email. RSS LinksRSS - Posts Twitter I just supported How to Prepare for Emergencies on @ThunderclapIt // @Cryptozoic thndr.me/FsrLEs 2monthsago I'm entered to win Loot Crate's Crate-a-Day Giveaway! lootcrate.com/crate-a-day-gi… #lootcrate #giveaway 2monthsago #lfgsyd Forbidden Island https://t.co/SLMofgiIaL 2monthsago I unlocked the Import master achievement in Disney Infinity! raptr.com/PCVirus?type=t… 2yearsago I unlocked the Sorry? achievement in Disney Infinity! raptr.com/PCVirus?type=t… 2yearsago CategoriesCategories Select Category Apple(1) iPhone(1) Backup Exec(21) Enterprise Vault(1) General(6) Google(1) Chrome OS(1) McAfee(2) ePO(1) VSE(1) Microsoft(26) Certification Authority(1) Exchange 2010(4) Group Policy(1) ISA Sever 2004(1) KMS(1) Outlook(1) PowerShell(14) 2012 Scripting Games(3) Windows 7(4) Windows 8(3) Windows Live Writer(1) Windows Server 2008 R2(3) Windows Server 2012(2) Symantec(1) Uncategorized(2) UPS(1) VMwar
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 https://www.experts-exchange.com/questions/24728290/Error-Code-502-Proxy-Error-The-request-is-not-supported.html to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts http://www.isaserver.org/blogs/shinder/news/isa-server-2004-blocks-requests-that-include-the-accept-encoding-http-header-when-a-forward-proxy-is-used-679.html Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Error Code: 502 Proxy Error. The request is not supported Want to Advertise Here? Solved Error Code: 502 Proxy Error. The request is not supported Posted on 2009-09-13 MS Forefront-ISA 1 Verified Solution 16 Comments 2,088 Views Last Modified: 2012-05-07 502 proxy Hi all, I have an issue with an ISA 2004 on SBS 2003. The url to access is www.website.com:port number in other words, force a URL to a specific website rather than 80. I tried creating a rule to allow that specific port, allowing the URL, allowing the user even, no changes, ISA does not seem to understand such web requests. Any clues ? PS : same URL 502 proxy error works just fine trough any other firewall/proxy of course, this is just an ISA thing. 0 Question by:unisolutions Facebook Twitter LinkedIn Google LVL 51 Best Solution byKeith Alabaster OK - got it. Ran through it with Wireshark - the response coming back is encoded - ISA will NOT like that at all as it cannot interrogate it through the http filter. I have not seen a method of altering Go to Solution 16 Comments LVL 51 Overall: Level 51 MS Forefront-ISA 40 Message Expert Comment by:Keith Alabaster2009-09-13 lol - this is likely why ISA is the best firewall/application gateway on the market. It doesn't allow any old crap to pass like most 'cheap' stuff will. Stranfely enough, Sidewinder, the other top classed firewall/proxy also needs good configuration as opposed to allowing automatic redirects. What Service pack of ISA are you running? Are you using the ISA firewall clients? How are you adding the port redirection to the URL? How have you tried adding another rule to ISA? 0 Message Author Comment by:unisolutions2009-09-14 :) Yeh well i still prefer a hardware firewall... What SP : SP3 and all the patches. ISA clients : yes Port redirection : using wpad Tried additional
15 Aug. 2008 / Last Updated on 15 Aug. 2008] Dall Ball, on the ISAserver.org mailing list shared an interesting problem. He noted that after installing ISA 2006 SP1, his users were starting to see errors that they hadn't seen before. The error returned to the users' browsers was: Error Code: 502 Proxy Error. The request is not supported. (50) It seemed like a pretty mysterious problem to me, even after checking a few lines of log files information provided by Dan. But then Dan did a packet trace on the connection and sent to Jim Harrison. Jim read the capture and said: Do you have compression disabled? If so, have a peek at the script in http://support.microsoft.com/?id=927263. This script is supported for ISA 2006 after SP1. This is a problem I wasn't aware of! You might have the same problem as Dan if the following is true: On a server that is running Microsoft Internet Security and Acceleration (ISA) Server 2004 with Service Pack 2, you disable the following two Web filters: Compression Filter Caching Compressed Content Filter After you do this, ISA Server 2004 blocks requests that include the Accept-Encoding HTTP header when a forward proxy is used. These Web filters were introduced in ISA Server 2004 Service Pack 2. You might disable these Web filters because of program compatibility problems that involve some Web servers. So, if you're seeing random 502 proxy errors with the request not being supported (50), then you should run the script found at http://support.microsoft.com/kb/927263 UPDATE: More information on this issue from Jim Harrison: "When compression is disabled, ISA will strip off the “Accept-encoding” header that the client sends. This is done to prevent the web site sending compressed responses because ISA can’t apply HTTP body inspection to it. In this case (and several others, it seems), the web site sends compressed content anyway (it’s a Sun server; waddayexpect?). Since ISA knows it can’t process compressed HTTP bodies, it rejects it. Adding this value causes ISA to forward the “Accept-encoding” header and when the content is delivered compressed, ISA simply sends it back to the client as-is without inspecting it." HTH, Tom Thomas W Shinder, M.D., MCSESr. Consultant / Technical WriterProwess Consulting www.prowessconsulting.com PROWESS CONSULTING documentation | integration | virtualizationEmail: 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 spam * * Required field The Author — Debra Shinder DEBRA LITTLEJOHN SHINDER, MCS