what is error 502 bad gateway

connect to the IP address. Writes an HTTP data stream through this socket. The HTTP data stream that receives the response from your Web server. The data flow includes a state encoding whose value depends on the HTTP protocol. Resolves the data stream to obtain status codes and other useful information. This error is generated in the last step described above, when the client receives an HTTP status encodi

hope the changes will not appear this error. Alas, since the online search for such a long answer, it is certainly useful to record the things, lest I go to Google next time ~Because I used the LNMP one-click installation package, out of the problem must first go to the official forum to search under, really good, the official has a such a sticky post, we first look at.LNMP One-click installation package o

for so long the answer, that of course must be useful things recorded, lest I go to Google next time ~ As I was using the LNMP one-button installation package, out of the question must first go to the official forum to search under, really good, the official has such a sticky post, we first see. LNMP One-button installation package The official: The first reason: the current LNMP a key installation package more problems is

502 Bad Gateway error solutionThere are many causes of Nginx 502 errors because of problems with backend servers in proxy mode. These errors are not nginx problems, so you must find the cause from the backend! However, nginx has put all these errors on its own, which makes i

. Contact the administrator of the Web site. Checkupdown Error Increased use of proxies and caching on the network. Our Checkupdown machine will always try to connect to the real computer host, which is actually the website you visit, but we are not fully controlled, our HTTP request is actually over. If only one link of the computer processing our HTTP request

: You can try to manually install the tool based on the script in the lnmp one-click installation package to see what caused the error. The second reason is: In PHP. in INI, The eaccelerator configuration item must be placed before the Zend optimizer configuration, otherwise it may also cause 502

The first reason: Install LNMP a key installation package when PHP did not install successfully and 502 bad Gateway, starting from 0.9 as long as the installation of success or failure will be prompted. Failure to install the general reason is that before the installation of PHP, some LIB packages in the script may not

Some websites that run on Nginx sometimes appear "502 Bad Gateway" errors, even when they occur frequently. Here are some of the Nginx 502 error troubleshooting methods compiled from Google for your reference:The reason for Nginx 502