What does nginx mean when 500 internal server error occurs?

What does nginx 500 internal server error mean?

1.Nginx 500 error（Internal Server Error Internal server error) : The 500 error refers to an internal server error, that is, the server encountered an unexpected situation and was unable to fulfill the request.

Solution to 500 internal server error in nginx

1. Is there insufficient disk space?

Use df -k to check whether the hard disk space is full. Clearing up hard disk space can solve the 500 error. If nginx has access log turned on, it is best to turn off access if it is not needed. log. The access log takes up a lot of hard disk space.

2. nginx configuration file error?

This does not refer to syntax errors. If nginx has syntax errors in the configuration file, it will prompt when starting.

When configuring rewrite, 500 errors may occur if some rules are not handled properly. Please carefully check your rewrite rules.

If some variables in the configuration file are set improperly, a 500 error will also occur, such as referencing a variable with no value.

3, If none of the above problems exist, it may be that the number of simulated concurrencies is too much, and you need to adjust the number of concurrency settings in nginx.conf

4, Open the /etc/security/limits.conf file and add two sentences:

5, Open/etc/nginx/nginx.conf , add a line below worker_processes:

Restart nginx, Reload settings:

After restarting, check the nginx error log to see if you find any 500 errors.

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