I tried to setup a Centos machine (tried 7.0 Core and 7.2 Core). After the OS has been installed performed

yum install epel-release and yum install nginx

I can see that the default path of the nginx.conf is under

/etc/nginx/nginx.conf

Tried to modify the path by removing the original path (/etc/nginx/nginx.conf) to a new path (/usr/local/nginx/config/nginx.conf) but after modifying the path, the service turned to "Failed" (code=exited, status=1/FAILURE) in red font color.

What I did was revert back to the original path (/etc/nginx/nginx.conf) and directly modified the nginx.conf

vi /etc/nginx.nginx.conf

tested the nginx by typing in: nginx -t, both ok and successful but this time around the service still showed up the same error message.

Tried to make a some research and all pointing out to a script or service but I'm pretty sure after testing the nginx -t, it should work now. No idea if there are other factors for this service to run.

Thanks
Jeff

Is your issue only with automatic start after a boot?

Can you start the service subsequently with e.g. sudo systemctl start nginx

If so, systemctl is trying to start nginx initially before all its prerequisites are ready (don't know what exactly).

Insert

ExecStartPre=/usr/bin/sleep 20

before

ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf

in

/lib/systemd/system/nginx.service

NB you may need to redo this after some yum updates...