How do I troubleshoot Nginx errors?
An example of an AI chatbot conversation about troubleshooting Nginx errors.
I'm getting a 502 Bad Gateway error on my Nginx server. What should I do?
A 502 Bad Gateway error usually indicates that Nginx is unable to communicate with the upstream server. First, check if the upstream server is running.
How can I check if the upstream server is running?
You can use commands like systemctl status <service-name> or curl <upstream-server-url> to check the status.
What if the upstream server is down?
If the upstream server is down, you'll need to restart it or troubleshoot the underlying issue causing it to be down.
Are there any logs I can check for more details?
Yes, check the Nginx error logs located at /var/log/nginx/error.log for more information on the error.
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