What are the reasons for the failure of restarting the …

There could be several reasons why the nginx service failed to restart.

1. Check the NGINX configuration for any syntax errors.
2. Show all active network connections and listening ports.
3. Permission issue: Nginx service may not have sufficient permissions to run. You can check if the user and group of Nginx are correct, and make sure the access permissions for relevant files and directories are set correctly.
4. view system log data
5. Display all running processes and search for the ones containing the word “nginx”.
6. openssl software package
7. Other issues: there may also be other unknown problems, such as missing dependencies, incompatible software versions, etc. You can check the system logs for more detailed error information and try updating the software or reinstalling nginx to resolve the issue.