Today I had a Jessie system where I made a little mistake with the  
openvpn config file name and after a restart of the service it did  
not come back, off course.
Off course it did not come back either after a full reboot of the system.
A colleage went to the system, we found the typo in the config file  
name (client.cinf in stead of client.conf)
Strangely it did not come back after a service openvpn restart nor  
after a service openvpn stop ; service openvpn start
Even stranger I could not find anything in the syslog about openvpn.
Now this might have something to do with the new system environment  
which seems to (try) to do some smart thing with *.conf files that  
exist at startup.
But...
1) Is there no other way to resolve this, other than a reboot?
2) As there was absolutely nothing in syslog, is there another place  
I should have looked about the service (re)start problem?