All posts in Computers

How to Configure Windows 2012 NPS for Radius Authentication with Ubiquiti Unifi


In a corporate environment shared key encryption is rarely used due to the problems associated with distributing the appropriate keys. In the corporate wireless world many organisations prefer to use 802.1x or Radius authentication so that their users can log on to the wireless networks with their domain credentials.

I was recently asked to set up just s system with Unifi access points and controllers on Windows Server 2012 with Microsofts own Radius solution NPS (or Network Policy Server) and 802.1x. There is plenty of information out there but I found that some of it was out of date and others were missing some fairly key components. So I present this tutorial to hopefully helps others get this up and running as quickly as possible.

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Configuring Suite B, VPN-A and VPN-B in IPSec with Strongswan


Many vendors have got the various IPSec standards already implemented within their products for ease of use.  This is my configuration for matching these standards with Strongswan.

It’s always nice to use a standard; they come from RFCs so have some level of scrutiny and make things interoperable.  These suites in my experience tend to be the ones which are implemented most widely.  As a security professional I’m happy that someone has investigated the best solutions with which to use.

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How to DNSPerf on Ubuntu 14.04 with Installation and Quick Start


It’s a shame that we don’t have the very awesome DNSPerf available in the Ubuntu repositories, however it’s very easy to install and well worth the small effort of compiling it from source if you are wanting to test the performance or stress test your DNS servers.

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IPSec VPN Host to Host on Windows 2012 R2 and Ubuntu 14.04


After one of my recent tutorials about a host to host Linux VPN this post is a how to create a host to host VPN between Windows 2012 and Ubuntu 14.04.  We’ll be using the inbuilt Windows Firewall with Advanced Security and Strongswan.

A lot like my last tutorial I couldn’t find any decent information out there how to get an IPSec connection between Microsoft and Linux, but since IPSec is an open standard I was confident it should work. After spending a lot of time working through how to do this I decided to write this post to hopefully help other people out in the same situation.

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IPSec VPN Host to Host on Ubuntu 14.04 with strongSwan


After spending a crazy amount of time trying to find something up to date regarding network security and host to host VPN I decided to write something which will hopefully be useful to other people in the same situation.

Setting up a host to host IPSec connection between two or more hosts running Ubuntu isn’t always a simple process. We want encryption to protect all the communication between two hosts and for this tutorial we will be using what I feel to be the simplest method of using Pre-shared Keys (PSK).

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