nginx.conf and nginx.pid users and permissions

Question

I\'m embarking on watching my NGINX error.log files at level: warn... probably a silly idea and will cause me to crash my server as I work out any bugs happening, but hey, we\'r

Answer 1

I got the same error on my Centos 7 server today.

nginx.pid" failed (13: Permission denied)

For me, it turned out to be a problem with SELinux. I did the following to make it work again:

systemctl stop nginx
touch /var/run/nginx.pid
chcon -u system_u -t httpd_var_run_t /var/run/nginx.pid
systemctl start nginx

running

ls -Z nginx.pid

should output

-rw-r--r--. root root system_u:object_r:httpd_var_run_t:s0 nginx.pid

Answer 2

In my case I got a

    "/usr/local/var/run/nginx.pid" failed (13: Permission denied)

    bind() to 0.0.0.0:80 failed (48: Address already in use)

and the working solution was made up of these steps:

1. stop root process

   sudo nginx -s stop
   

2. check if process stopped

   ps aux | grep nginx
   

3. restart process

   sudo nginx -s reload
   

gave me the error

    nginx: [error] open() “/usr/local/var/run/nginx.pid” failed (2: No such file or directory)

probabil .pid was started with the wrong root user as I uncommented the line with path to .pid in /usr/local/etc/nginx/nginx.conf and then I commented it back again

4. to start nginx as a user and not root

   brew services start nginx
   

5. result at running command

   ps aux | grep nginx
   
   youruser 89212 0.0 0.0 4268280 644 s002  S+ 2:46PM 0:00.00 grep nginx
   youruser 89179 0.0 0.0 4302204 1776 ?? S 2:45PM 0:00.00 nginx: worker process  
   youruser 89178 0.0 0.0  4275372 4368 ?? S 2:45PM 0:00.01 nginx: master process /usr/local/opt/nginx/bin/nginx -g daemon off;
   

And as it can be seen, the nginx process started with the expected user and not as root and the conflict between processes was gone and I could access the PHP application local domain.