Error 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 out that
502 Proxy Error Openshift
if you're going through an ISA firewall, that you'll see this error when 502 proxy error chrome the Web server includes a response that includes an HTTP header with a space or tab at the beginning of
502 Proxy Error Web Service
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 of this error. Check https://support.microsoft.com/en-us/kb/935693 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 spam * * Required field The http://www.isaserver.org/blogs/shinder/isa-central/502-proxy-error-http-message-includes-an-unsupported-header-768.html 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 & Platforms Configuration - General Configuration - Security General Guides and Ar
502 Proxy Error Whenever an ISA or TMG server throws a 502 Proxy Error your way, you know you are probably in for a real hurdle. But with a little familiarity with what a 502 error means, and how http://www.chicagotech.net/msapps/isa1.htm it can be fixed, you will be back in business in little time. First, let’s take a look at the definition of 502 HTTP response code: 502 Bad Gateway The server was acting as a gateway or proxy and received an invalid http://www.ibm.com/support/docview.wss?uid=swg21375147 response from the upstream server. Pay close attention to what that is saying. The proxy (meaning your ISA or TMG server) received an invalid response from the upstream server (implying that the internal webserver that you are publishing!). Unfortunately that is not 502 proxy always the case as ISA and TMG can throw that error when they are unhappy about something that a normal browser would readily accept. They can also throw one of several different kinds of 502 depending on the circumstances. Understanding is critical to a quick resolution. Don’t just stop reading at 502, check the rest of the response. Here is how to determine whether the problem is with your ISA/TMG, or on the internal server: 1. Open a browser on the internal network. 2. Access 502 proxy error the URL in question. 3. If you can view the content successfully, the problem is with your ISA/TMG. If not, the problem is with your webserver. Since this post is about ISA and TMG, let’s assume you are able to view the content internally just fine, so we’ll keep discussing ISA/TMG. 4. Go to your log viewer. In ISA that is Monitoring, or in TMG that is in Logs & Reports. 5. Edit the filter to look at live logs and have the user try again, or filter on the time range to see the error. Add the “Filter by” criteria for HTTP Status Code, and set it equal to 502. 6. Run the query, and examine the results. Some of the frequent causes of ISA/TMG generating 502s are: • A 502 can be thrown by the ISA/TMG when content filtering is enabled and something in the response is being blocked. Disable content filtering and see if you are then able to access the resource. If you are, look at the header in one of the logged errors (in your log, click the more information link on the error) and see what content type is being returned by the published server. Authorize that in your content filter. • If you are using ISA/TMG as a client proxy, and the destination server is running on a non-standard port, you can encounter this error. Create an access rule allowing the non-standard ports. • “502 Proxy Error. No data record is availab
cluster error Technote (troubleshooting) Problem(Abstract) When clicking on the Job Server Cluster, a communication with job server error is displayed Symptom The error below occurs when clicking on the Job Server Cluster: Communication with Job Server [Server Name] failed. Error Details: 502 - Proxy Error (The ISA Server denied the specified Uniform Resource Locator (URL). ) URL: http://[Server Name]:port number/p2pd/servlet/dispatch, SOAP action: http://developer.cognos.com/schemas/planningtaskService.direct HTTP/1.1 502 Proxy Error (The ISA Server denied the specified Uniform Resource Locator (URL). ) Via: 1.1 DEVISA02 Connection: close Proxy-Connection: close Pragma: no-cache Cache-Control: no-cache Content-Type: text/html Content-Length: 4054 Cause Proxy settings have not been configured to allow communication between the application server and the job server Resolving the problem Configure the Proxy settings in Internet Explorer Steps:1. Open up Internet Explorer 2. Select Tools -> Internet Options from the menu bar 3. Select the Connections tab and click the 'LAN Settings...' box 4. Under the Proxy server heading, where the proxy server for your LAN option is selected, click on the Advanced box 5. Type in the URL's that the Proxy error is coming up for under the Exceptions box and click on OK until you exit out of the Internet options box 6. Click on the Job Server Cluster and test Cross reference information Segment Product Component Platform Version Edition Business Analytics Cognos Planning Contributor Windows 8.3 Historical Number 1041685 Document information More support for: Cognos 8 Planning Contributor Software version: 8.3 Operating system(s): Windows Reference #: 1375147 Modified date: 2012-01-17 Site availability Site assistance Contact and feedback Need support? Submit feedback to IBM Support 1-800-IBM-7378 (USA) Directory of worldwide contacts Contact Privacy Terms of use Accessibility