Openvpn License Key Generator

When the OpenVPN Access Server is installed without a license key it allows only 2 simultaneous VPN connections. There is no time limit or functionality limit on this mode. The only difference between a licensed Access Server and an unlicensed one is the amount of simultaneous OpenVPN tunnel connections the Access Server allows. The OpenVPN Configuration Generator aims to solve this by providing an easy-to-use command line interface that quickly allows generating these files with secure defaults. This tool is designed to be simple and fast to use: its focus is on the generation of the files needed by OpenVPN and nothing more (it is not an OpenVPN server itself).

Openvpn License Keygen
Openvpn Access Server License Key Generator

openvpn-client-key-gen.sh

#!/bin/bash

# OpenVPN Client Key Generation Script

# Author: rtfpessoa

# Date: 03-09-2016

# Based on the guide:

# * https://www.digitalocean.com/community/tutorials/how-to-set-up-an-openvpn-server-on-ubuntu-16-04

# First argument: Client identifier

# Second argument: Generate key with password

client_key_name=$1

key_with_pass=$2

if [[ -z$client_key_name ]];then

echo'Missing client key name!'

exit 1

VPN_DIR=~/openvpn-ca

KEY_DIR=${VPN_DIR}/keys

CLIENT_CFG_DIR=~/client-configs

OUTPUT_DIR=${CLIENT_CFG_DIR}/files

BASE_CONFIG=${CLIENT_CFG_DIR}/base.conf

mkdir -p $OUTPUT_DIR

chmod 700 ~/client-configs/files

# cp /usr/share/doc/openvpn/examples/sample-config-files/client.conf ~/client-configs/base.conf

cd${VPN_DIR}

source vars

if [[ -n$key_with_pass ]];then

./build-key-pass ${client_key_name}

else

./build-key ${client_key_name}

cat ${BASE_CONFIG}

<(echo -e '<ca>')

${KEY_DIR}/ca.crt

<(echo -e '</ca>n<cert>')

${KEY_DIR}/${1}.crt

<(echo -e '</cert>n<key>')

${KEY_DIR}/${1}.key

<(echo -e '</key>n<tls-auth>')

${KEY_DIR}/ta.key

<(echo -e '</tls-auth>')

>${OUTPUT_DIR}/${1}.ovpn