Build a OpenBSD wireless access point that redirects any client request for any website to a website of your own design. With a little imagination you could adapt this technique for more nefarious purposes – but that is not something we endorse here. Something more applicable to our kind may be to use this technique to do basic DNS based filtering, ad-blocking or something along those lines.
A wireless access point / Hotspot using OpenBSD
November 29, 2012 by 10 Comments
This Guide explains how you would setup a wireless hotspot using OpenBSD and PF so you can provide internet access to wireless clients such as laptops or phones.
Sniffing for plaintexters
November 20, 2012 by Leave a Comment
I hope you enjoy this little piece i wrote to sniff for people that check their e-mail via insecure POP or IMAP ports. In my case, i ran this via cron each morning on weekdays for two minutes inside a LAN with a couple hundred users. If “plaintexters” where found, it would send the list of people to the IT Team, basically a mail group on Exchange. They would then contact the User and make sure their mail settings where right.
FreeBSD.org intrusion and how to use SSH Keys and SSH-Agent
November 19, 2012 by 2 Comments
Great excuse to write about how to use ssh keys securely by password protecting the keyfile: On Sunday 11th of November 2012 FreeBSD.org has suffered an intrusion on two machines that contained third party software (packages, ports) within the FreeBSD.org cluster. For details about this read this Incident Report. As far as i can guess from the report and the news, it appears the intruder gained access to the affected systems by means of a developers ssh key that was not protected by a passphrase.
Enabling Root MacOSX
May 29, 2009 by Leave a Comment
General Information
This tutorial will explain how to enable the root user in OS X. It’s not recommended that you do this but some GNU/ported/custom software requires it. Please remember that enabling the root user can be a security risk if your machine is hooked up to the internet without some sort of protection like a router or a firewall. This has been tested on OS X v10.1.x and 10.2.x. It should work with 10.0.x and any future versions.
Managing Jails
June 30, 2008 by Leave a Comment
General Information
This document is an introduction to basic FreeBSD jails also called ‘fat jails’. We discuss an easy jail installation process. We will do some basic jail configuration and show you how to manage the jail environment. This document wil not cover building ‘chroot jails’ in a jail.
Enable and Disable Anonymous FTP
February 18, 2007 by Leave a Comment
General Information
This guide describes the steps for both enabling and disabling anonymous FTP.
Enable setuid In Perl
October 4, 2006 by Leave a Comment
General Information
There may be times you would want to run perl scripts as non-root users. This offers more security to your system and this guide will show you how to enable perl to use setuid.
Locking Your Shell
July 14, 2005 by 1 Comment
General Information
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.