Error 502 Proxy Server
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504 Gateway Timeout Error 3 503 Service Unavailable 4 500 Internal Server Error 5 How to Fix a 400 Bad Request Error About.com About Tech PC Support . . . Troubleshooting Guides Error Messages 0 502 proxy error web service to 9 Error Messages Understanding and Fixing 502 Bad Gateway Errors Tactics to 502 proxy error apache reverse proxy Fix a 502 Bad Gateway Error 502 Bad Gateway Error. © THORDOG By Tim Fisher PC Support Expert Share Pin Tweet 502 proxy error amazon Submit Stumble Post Share By Tim Fisher Updated October 02, 2016. The 502 Bad Gateway error is an HTTP status code that means that one server received an invalid response from another server.The Bad https://support.microsoft.com/en-us/kb/2423401 Gateway error can be customized by each website. While fairly uncommon, different web servers do describe this error differently. Here are some common ways you might see it.How the 502 Error Appears"502 Bad Gateway""502 Service Temporarily Overloaded""Error 502""Temporary Error (502)""502 Proxy Error""502 Server Error: The server encountered a temporary error and could not complete your request""HTTP 502""502. That's an error""Bad Gateway: The proxy server received an invalid response http://pcsupport.about.com/od/findbyerrormessage/a/502error.htm from an upstream server""HTTP Error 502 - Bad Gateway"The 502 Bad Gateway error displays inside the Internet browser window, just as web pages do.Twitter's famous "fail whale" error that says Twitter is over capacity is actually a 502 Bad Gateway error (even though a 503 Error would make more sense).A Bad Gateway error received in Windows Update generates a 0x80244021 error code or the message WU_E_PT_HTTP_STATUS_BAD_GATEWAY. continue reading below our video How to Fix Browser Error Codes When Google services, like Google Search or Gmail, are experiencing a 502 Bad Gateway, they often show Server Error, or sometimes just 502, on the screen.502 Bad Gateway errors are completely independent of your particular setup, meaning that you could see one in any browser, on any operating system, and on any device.Cause of 502 Bad Gateway ErrorsOften, Bad Gateway errors are caused by issues between servers online that you have no control over. However, sometimes there is no real issue but your browser thinks there is one thanks to an issue with your browser, a problem with your home networking equipment, or some other in-your-control reason.Note: Microsoft IIS web servers often give more information about the cause of a particular 502 Bad Gateway err
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/20406845/proxy-error-502-the-proxy-server-received-an-invalid-response-from-an-upstream about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users http://www.checkupdown.com/status/E502.html 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 Proxy Error 502 : The proxy server received an invalid response from an upstream server up vote 24 down vote favorite 6 We are building a mass 502 proxy mailing sending application in Java. Mail is being send by third party SMTP. After sending 400-500 mails tomcat6 service get stopped. Below is the error. Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /lin/Campaignn.jsp. Reason: Error reading from remote server Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request. Apache Server at msizzler.com Port 502 proxy error 80 But when we are sending from localhost I did not received any error. It send all the mails. Please help me to sort it out this problem. java email proxy tomcat6 share|improve this question asked Dec 5 '13 at 17:36 Ranjeet Ranjan 1332210 add a comment| 3 Answers 3 active oldest votes up vote 26 down vote The HTTP 502 "Bad Gateway" response is generated when Apache web server does not receive a valid HTTP response from the upstream server, which in this case is your Tomcat web application. Some reasons why this might happen: Tomcat may have crashed The web application did not respond in time and the request from Apache timed out The Tomcat threads are timing out A network device is blocking the request, perhaps as some sort of connection timeout or DoS attack prevention system If the problem is related to timeout settings, you may be able to resolve it by investigating the following: ProxyTimeout directive of Apache's mod_proxy Connector config of Apache Tomcat Your network device's manual share|improve this answer answered Jan 29 '14 at 2:18 rmeakins 899611 add a comment| up vote 16 down vote Add this into your httpd.conf file Timeout 2400 ProxyTimeout 2400 ProxyBadHeader Ignore share|improve this answer edited Sep 6 at 16:52 Ian Hunter 3,46973559 answered Feb 18 '14 at 9:23 Albert Maclang 16112 8 Try it why
Ihr Webbrowser oder unser CheckUpDown-Roboter) zu erfüllen. Dieser Server empfing eine ungültige Antwort von einem vorgeschalteten Server, auf den er zugriff, um die Anforderung zu erfüllen. Dies bedeutet normalerweise nicht, dass der vorgeschaltete Server ausgefallen ist (keine Antwort zum Gateway/Proxy), sondern, dass vorgeschalteter Server und Gateway/Proxy sich nicht über das Protokoll zum Datenaustausch einig sind. Da Internetprotokolle ziemlich eindeutig sind, beduetet dies oft, dass eine oder beide Rechner falsch oder unvollständig programmiert wurden. Beheben von 502-Fehlern - allgemein Dieses Problem rührt von einer schlechten IP-Kommunikation zwischen nachgestellten Computern her. Dies kann möglicherweise den Webserver an der Site, die Sie besuchen wollen, mit einschließen. Bevor Sie dieses Problem analysieren, sollten Sie Ihren Browsercache vollständig leeren. Wenn Sie im Web surfen und dieses Problem bei allen Websites, die Sie zu besuchen versuchen, sehen, dann hat entweder 1) Ihr ISP einen großen Geräteausfall/eine Überlast oder 2) es ist etwas falsch mit Ihrer internen Internetverbindung, z.B. funktioniert Ihre Firewall nicht richtig. Im ersten Fall kann Ihnen nur Ihr ISP helfen. Im zweiten Fall müssen Sie, was immer es ist, dass Sie davon abhält das Internet zu erreichen, korrigieren. Wenn Sie dieses Problem nur bei einigen der Websites die Sie zu besuchen versuchen erhalten, ist es wahrscheinlich ein Problem bei diesen Sites, d.h. eines ihrer Ausrüstungsteile ist ausgefallen/überlastet. Wenden Sie sich an die Betreiber dieser Sites. Beheben von 502-Fehlern - CheckUpDown Wir überwachen Ihre Site auf Fehler wie 502. Der Einsatz von Proxies und Caching nimmt im Web zu. Unser CheckUpDown-Roboter versucht immer sich zu dem realen Computer, der tatsächlich Ihre Website hostet, 'durchzubohren', aber wir haben keine vollständige Kontrolle darüber, wo unsere HTTP-Anforderung tatsächlich landet. Wenn nur ein Glied in der Kette von Computern, die mit unserer HTP-Anforderung beschäftigt sind, unterbrochen ist, dann kann ein Fehler wie ein 502 einfach auftreten. Bitte wenden Sie sich direkt (am besten per E-Mail) an uns, wenn Sie auf 502-Fehler stoßen - Sie selbst können nichts machen, um sie zu bereinigen. Wir müssen dann mit Ihrem ISP und dem Hersteller der Webserver-Soft