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The 502 Bad Gateway error message indicates a problem with the web server, typically caused by an issue with the upstream server the web server is trying to access. This could be due to various reasons, such as the upstream server being overloaded, offline, or misconfigured.
To resolve a 502 Bad Gateway error, some common troubleshooting steps include:
- Checking the status of the upstream server
- Examining the web server logs for more details on the error
- Ensuring the web server and upstream server configurations are correct
- Scaling up resources on the web server or upstream server to handle increased traffic
Read the full article to learn more about diagnosing and resolving 502 errors.