Create add_vpn_user.sh

Added a simple script for adding new vpn users

extras/add_vpn_user.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+#
+# Script for adding a new vpn user
+# Usage: ./add_vpn_user.sh username pa$$word
+#
+
+if [[ $EUID -ne 0 ]]; then
+   echo "This script must be run as root"
+   exit 1
+fi
+
+if [[ $# -ne 2 ]] ; then
+    echo 'Usage: add_vpn_user.sh username pa$$word'
+    exit 0
+fi
+
+echo "Adding user..."
+
+echo "\"$1\"  l2tpd  \"$2\"  *" | tee -a /etc/ppp/chap-secrets > /dev/null
+echo "$1:$(openssl passwd -1 $2):xauth-psk" | tee -a /etc/ipsec.d/passwd > /dev/null
+
+echo "Restarting vpn service..."
+
+service ipsec restart
+service xl2tpd restart