Install lz4
# pkg_add lz4
Make a directory where the conf file will be hosted
# mkdir /etc/openvpn/
Get the conf file there
# cd /etc/openvpn/ && wget http://awesome-address.com/my-file.ovpn
Create an interface for it.
cat > /etc/hostname.tun0 <<-__EOF__
up
!/usr/local/sbin/openvpn --daemon --config /etc/openvpn/my-file.ovpn
__EOF__
This is not windows, no need to reboot
# /usr/local/sbin/openvpn --daemon --config /etc/openvpn/my-file.ovpn
Check it's there, up and running
# ifconfig tun0
Check you're where you are supposed to be with a "check my ip map".
To disconnect "gracefully" (sic)
# pkill -SIGTERM -f 'openvpn --daemon --conf $OPENVPNCONFFILE'
Although probably it is better to not have it start on boot and run it without a daemon
/usr/local/sbin/openvpn --config /etc/openvpn/my-file.ovpn
So that you can stop it with a CTRL+C