Deployment How-To ARchive Nginx web server listening on unix socket file fails to restart
The symptom
Nginx service in Ubuntu cannot successfully restart, or start after being stopped, if there is any server configured to listen on unix socket file(s) (e.g. /var/run/nginx.sock). This happens in Ubuntu Xenial (16.04) and Bionic (18.04), and most likely also related Debian …
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