Erreur 502 Proxy Error
Contents |
360 games PC games 502 erreur du proxy Windows games Windows phone games Entertainment All Entertainment 502 proxy error apache Movies & TV Music Business & Education Business Students & educators 502 proxy error dns lookup failure Developers Sale Sale Find a store Gift cards Products Software & services Windows Office Free downloads & security Internet
502 Proxy Error Apache Error Reading From Remote Server
Explorer Microsoft Edge Skype OneNote OneDrive Microsoft Health MSN Bing Microsoft Groove Microsoft Movies & TV Devices & Xbox All Microsoft devices Microsoft Surface All Windows PCs & tablets PC accessories Xbox & games Microsoft Lumia All 502 proxy error reason error reading from remote server Windows phones Microsoft HoloLens For business Cloud Platform Microsoft Azure Microsoft Dynamics Windows for business Office for business Skype for business Surface for business Enterprise solutions Small business solutions Find a solutions provider Volume Licensing For developers & IT pros Develop Windows apps Microsoft Azure MSDN TechNet Visual Studio For students & educators Office for students OneNote in classroom Shop PCs & tablets perfect for students Microsoft in Education Support Sign in Cart Cart Javascript is disabled Please enable javascript and refresh the page Cookies are disabled Please enable cookies and refresh the page CV: {{ getCv() }} English (United States) Terms of use Privacy & cookies Trademarks © 2016 Microsoft
ProductsHomearound the homeproductivityHow to Fix a 502 Proxy ErrorHow to Fix a 502 Proxy ErrorBy Josh FredmanError 502 usually indicates a remote problem that has nothing to do with your computer or Internet connection. This is good news, since there's nothing for you to fix, but bad news in 502 proxy error openshift that the error will continue until the people who control the erring
502 Proxy Error Chrome
server figure out they have a problem and fix it. However, depending on the source of the problem,
502 Proxy Error Web Service
you may be able to take steps to resolve or bypass it.Internet Status CodesThe "HTTP" at the beginning of every URL stands for "Hypertext Transfer Protocol." HTTP provides an orderly https://support.microsoft.com/en-us/kb/2423401 way for your Web browser to communicate with Web servers -- the machine chatter that goes on behind the scenes of your Internet experience. As a part of HTTP, whenever your browser interacts with a server, such as when you attempt to load a Web page, the server responds with an Internet status code telling the browser how the interaction https://www.techwalla.com/articles/how-to-fix-a-502-proxy-error went. The most common one is code 200, a generic message meaning that everything went fine. These codes are always present, but your browser doesn't typically show them to you, unless something goes wrong. Code 404 is the best-known HTTP error code, indicating that the server couldn't find what your browser was looking for, but code 502 also shows up from time to time.Code 502: Bad GatewayHTTP error code 502 indicates a "bad gateway" or "bad proxy." When you visit a website, your browser doesn't necessarily communicate directly with the server that hosts the site. Often there are middleman Web servers along the way called "gateways" that route Web traffic between networks. If something goes wrong between the gateway server and another server upstream -- which could be either the destination server or another gateway server -- the status code that makes its way back to you is code 502. It's not a very informative message, telling you only that the gateway server received an invalid response. The actual problem could lie with the upstream server or with t
Server Web App Gallery Microsoft Azure Tools Visual Studio Expression Studio Windows Internet Explorer WebMatrix Web Platform Installer Get Help: Ask a Question in our Forums More Help Resources Blogs Forums HomeLearnExtensionsChapter 4. Troubleshooting Application Request RoutingTroubleshooting 502 Errors in ARR Troubleshooting 502 Errors https://www.iis.net/learn/extensions/troubleshooting-application-request-routing/troubleshooting-502-errors-in-arr in ARR By Richard MarrApril 9, 2012Tools Used in this Troubleshooter: IIS Failed Request http://serverfault.com/questions/185894/proxy-error-502-reason-error-reading-from-remote-server-with-apache-2-2-3-de Tracing Network Monitor Winhttp Tracing This material is provided for informational purposes only. Microsoft makes no warranties, express or implied. HTTP 502 - Overview When working with IIS Application Request Routing (ARR) deployments, one of the errors that you may see is "HTTP 502 - Bad Gateway". The 502.3 error means that - while acting as a proxy 502 proxy - ARR was unable to complete the request to the upstream server and send a response back to the client. This can happen for multiple reasons - for example: failure to connect to the server, no response from the server, or the server took too long to respond (time out). If you are able to reproduce the error by browsing the web farm from the controller, and detailed errors are enabled on the 502 proxy error server, you may see an error similar to the following: Figure 1 (Click image to expand) The root cause of the error will determine the actions you should take to resolve the issue. 502.3 Timeout Errors The error code in the screenshot above is significant because it contains the return code from WinHTTP, which is what ARR uses to proxy the request and identifies the reason for the failure. You can decode the error code with a tool like err.exe. In this example, the error code maps to ERROR_WINHTTP_TIMEOUT. You can also find this information in the IIS logs for the associated website on the ARR controller. The following is an excerpt from the IIS log entry for the 502.3 error, with most of the fields trimmed for readability: sc-status sc-substatus sc-win32-status time-taken 502 3 12002 29889 The win32 status 12002 maps to the same ERROR_WINHTTP_TIMEOUT error reported in the error page. What exactly timed-out? We investigate this a bit further by enabling Failed Request Tracing on the IIS server. The first thing we can see in the failed request trace log is where the request was sent to in the ARR_SERVER_ROUTED event. The second item I have highlighted is what you can use to track the request on the target server, the X-ARR-LOG-ID. This will
Start 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 Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Proxy Error 502 “Reason: Error reading from remote server” with Apache 2.2.3 (Debian) mod_proxy and Jetty 6.1.18 up vote 46 down vote favorite 23 Apache is receiving requests at port :80 and proxying them to Jetty at port :8080 The proxy server received an invalid response from an upstream server The proxy server could not handle the request GET /. My dilemma: Everything works fine normally (fast requests, few seconds or few tens of seconds long requests are processed ok). Problems occur when request processing takes long (few minutes?). If I issue request instead directly to Jetty at port :8080 the request is processed OK. So problem is likely to sit somewhere between Apache and Jetty where I am using mod_proxy. How to solve this? I have already tried some "tricks" related to KeepAlive settings, without luck. Here is my current configuration, any suggestions? #keepalive Off ## I have tried this, does not help #SetEnv force-proxy-request-1.0 1 ## I have tried this, does not help #SetEnv proxy-nokeepalive 1 ## I have tried this, does not help #SetEnv proxy-initial-not-pooled 1 ## I have tried this, does not help KeepAlive 20 ## I have tried this, does not help KeepAliveTimeout 600 ## I have tried this, does not help ProxyTimeout 600 ## I have tried this, does not help NameVirtualHost *:80