I use OpenVPN V1.15 + Zerina 0.94i for few years and all works great but i've one problem to solve :
I know that i must add a line "client-config-dir ccd" in the file /var/ipcop/ovpn/server.conf
I know too that i have to create a directory ccd on "/var/ipcop/ovpn" and create a file into but i don't know how to name this file and his content
the file has to be named same as the cn (commin name) of certificate.
Wrong name is not too bad ... look at log /var/log/messages) and you will find the "missed name"
replace white spaces by an underline ...
content of that file correct given at doc's -> openvpn.net