Written by Cezary Morga and last updated on 08/03/2007 - [ freebsd | openbsd ]

Although there are some good tutorials on setting VPN connections using IPSec in FreeBSD-to-FreeBSD or OpenBSD-to-OpenBSD configurations, only tutorials on setting FreeBSD-to-OpenBSD IPSec tunnels are at least partly outdated, mostly due to changes introduced in OpenBSD 3.8. In this tutorial I'll demonstrate how to configure such a VPN connection (tunneling mode) using racoon and isakmpd IKE daemons along with x509 certificates. The IP addresses used throughout this tutorial are: - gateway A running FreeBSD with internal IP address: 192.168.0.1, and external IP: 10.0.0.1, - gateway B running OpenBSD with internal IP address: 192.168.1.1, and external IP: 10.0.0.2. For the purpose of this tutorial I have used FreeBSD 6.2-RELEASE and OpenBSD 4.1-RELEASE operating systems, but the configuration covered here should be applicable in any reasonably recent version as well.

Written by Jon LaBass and last updated on 07/15/2005 - [ freebsd | openbsd | netbsd ]

Often times we SSH into our BSD boxes and then have to leave our stations for a little bit. If we don't do anything special with our open terminal, that poses a serious security threat to our boxes. Wouldn't it be nice if we could just lock the open terminal without having to close the connection? Well, we can with a built-in utility called lock(8). There is also the vlock port that I will discuss as well.