Add OpenVPN Users

1 - Go to the easy-rsa directory and edit the vars file.

# cd /etc/openvpn/easy-rsa/2.*/

2 - Run clean-all to ensure that we have a clean certificate setup.

./clean-all
## Note all certificates in the 'keys/' directory will be removed, make sure you have copied the used certificates to a different keys folder

3 - Generate client key and certificate.

./build-key username
The keys will be generated in the keys/ folder

4 - Copy the keys in the directory `keys/` to `/etc/opennvpn/keys`.

cp -r keys/* /etc/openvpn/keys/.