Using LetsEncrypt for OpenVPN WebSSL

Using letsencrypt for OpenVPN Access Server is nothing more than symlinking the files to letsencrypt keys and certs:

1. sudo -s
2. cd /usr/local/openvpn_as/etc/
3. mv web-ssl web-ssl.bak
4. mkdir web-ssl
5. ln -s /etc/letsencrypt/live/<letsencrypt domain dir>/privkey.pem web-ssl/server.key
6. ln -s /etc/letsencrypt/live/<letsencrypt domain dir>/cert.pem web-ssl/server.crt
7. ln -s /etc/letsencrypt/live/<letsencrypt domain dir>/fullchain.pem web-ssl/ca.crt
8. systemctl restart openvpnas