Category Archives: Papers

Setting up IPSec over GRE on OpenBSD

Posted on May 17, 2007 by jeff

This document will explain howto set up an IPSec encrypted GRE tunnel on OpenBSD. In the document, both end points are OpenBSD 4.1 systems, however it should be fairly straight forward to implement on other systems. To start, I would … Continue reading →

Posted in Networking, OpenBSD, Papers, Security | 7 Comments

Backup Files and Partitions with dd and netcat

Posted on January 17, 2007 by jeff

This paper walks through various scenarios where dd and netcat can be used to backup files for administrative and forensic purposes. This paper is expected to grow over time and will be updated as time permits. The first example uses … Continue reading →

Posted in DragonFlyBSD, FreeBSD, NetBSD, Networking, OpenBSD, Papers, System Administration | 1 Comment

Configuring racoon/ipsec-tools to use x509 Certificates

Posted on January 17, 2007 by jeff

This paper reviews the process to configure racoon/ipsec-tools to authenticate IPSec communications via x509 certificates. Our example does not cover howto configure a Certificate Authority (CA). This process will be examined in another paper. Our example also assumes the clients … Continue reading →

Posted in DragonFlyBSD, FreeBSD, NetBSD, Networking, Papers, Security | 1 Comment