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What does 502nginx mean?
502nginx means a 502 gateway server error.
Generally this problem is due to poor IP communication between the backend computers, including the website you may be trying to access on the web server. While analyzing this issue, you should clear your browser cache completely.
If you are online and see this problem on all websites you try to visit, there are two possibilities
1) Your ISP has a major equipment failure/overload or
2) Problems with the internal internet connection such as your firewall not functioning properly.
In the first case, only your ISP can help you. In the second case, what you need to fix is blocking your access to the internet.
If you only experience this problem with some of the websites you are trying to access, it is most likely a problem with one of these sites, which has a faulty or overloaded device. Contact the site administrator.
Cause
The server (not necessarily a web server) acts as a gateway or proxy to meet the requirements of clients (such as web browsers or our CheckUpDown robot) to access the requested URL. This server received an invalid response from an upstream server it accessed to fulfill its request.
You can try clearing the browser cache and accessing your FTP to see if you can log in.
For more Nginx related technical articles, please visit the Nginx usage tutorial column to learn!
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