nginx logging permissions
Nov 13 16:45:20 vpn nginx[30776]: nginx: [alert] could not open error log file: open() "/var/log/nginx/error.log" failed (13: Permission denied)
root@vpn:~# ls -al /var/log/nginx/error.log
-rw-r----- 1 www-data adm 0 Oct 27 13:35 /var/log/nginx/error.log
But it's running as user nginx