502 Proxy Error In Firefox
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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 502 proxy error apache proxy error to help guard against external or internally-based Internet threats, and 2- 502 proxy error dns lookup failure The client or server computers are misconfigured or using outdated software. What is a 502 Proxy Error? A 502 proxy error 502 proxy error apache error reading from remote server 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. 502 proxy error reason error reading from remote 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
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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 (5
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 that the error will continue until the people who control the erring server
502 Proxy Error Chrome
figure out they have a problem and fix it. However, depending on the source 502 proxy error web service of the problem, you may be able to take steps to resolve or bypass it.Internet Status CodesThe "HTTP" at the beginning of 502 proxy error apache reverse proxy every URL stands for "Hypertext Transfer Protocol." HTTP provides an orderly way for your Web browser to communicate with Web servers -- the machine chatter that goes on behind the scenes of your Internet experience. As http://www.tech-faq.com/502-proxy-error.html 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 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 https://www.techwalla.com/articles/how-to-fix-a-502-proxy-error 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 the gateway server itself.Main Sources of 502 ErrorsIf you get a 502 error only for a specific website, it usually suggests a problem with the website's server. On the other hand, if you get 502 errors for all websites, it probably means that your Internet service provider is having a technical problem in your neighborhood. Give them a call to report the outage; and if you use a proxy server for privacy or to bypass acc
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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 22 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