Comment 2 for bug 1613155

Right, yazoo's suggestion should work, to turn the service into a standalone service vs a socket-activated service.

You can also modify the socket properties in the ocserv.socket configuration file rather than the ocserv.conf file. This is described briefly in README.Debian in the latest package of ocserv, and in the man pages for systemd.unit(5) and systemd.socket(5).