OpenVPN Server Debian + Mikrotik

apt-get update
 apt-get install openvpn
 cp -a /usr/share/doc/openvpn/examples/easy-rsa /etc/openvpn/
 cd /etc/openvpn/easy-rsa/2.0
 source ./vars
 ./clean-all
 ./build-ca
 ./build-key-server mikrotik

 openvpn --genkey --secret keys/ta.key

mkdir /etc/openvpn/keys
cp /etc/openvpn/easy-rsa/2.0/keys/{ca.crt, mikrotik.crt, mikrotik.key} /etc/openvpn/keys
service openvpn restart

iptables -t nat -I POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
iptables -t nat -I POSTROUTING -s 10.9.0.0/24 -o eth0 -j MASQUERADE
iptables-save