Raymii
New Member
This is a guide on setting up an IPSEC/L2TP vpn server with Ubuntu 13.10 or 13.04 using Openswan as the IPsec server, xl2tpd as the l2tp provider and ppp or local users / PAM for authentication. It has a detailed explanation with every step. We choose the IPSEC/L2TP protocol stack because of recent vulnerabilities found in pptpd VPNs.
This tutorial is available for the following platforms:
IPSec encrypts your IP packets to provide encryption and authentication, so no one can decrypt or forge data between your clients and your server. L2TP provides a tunnel to send data. It does not provide encryption and authentication though, that is why we need to use it together with IPSec.
To work trough this tutorial you should have:
I do all the steps as the root user. You should do to, but only via * -i* or * su -*. Do not allow root to login via SSH!
Read on for Ubuntu 13.10
Read on for Ubuntu 13.04
This tutorial is available for the following platforms:
- Ubuntu 13.10
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- CentOS 6, Scientific Linux 6 or Red Hat Enterprise Linux 6
IPSec encrypts your IP packets to provide encryption and authentication, so no one can decrypt or forge data between your clients and your server. L2TP provides a tunnel to send data. It does not provide encryption and authentication though, that is why we need to use it together with IPSec.
To work trough this tutorial you should have:
- 1 ubuntu 13.10 or 13.04 server with at least 1 public IP address and root access
- 1 (or more) clients running an OS that support IPsec/L2tp vpns (Ubuntu, Mac OS, Windows, Android).
- Ports 1701 TCP, 4500 UDP and 500 UDP opened in the firewall.
I do all the steps as the root user. You should do to, but only via * -i* or * su -*. Do not allow root to login via SSH!
Read on for Ubuntu 13.10
Read on for Ubuntu 13.04
