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 […]
Steam & Valve IP Ranges
After spending a fair amount of time trying to find the IP subnets which Steam uses I came up a blank, so I went to…
Easy(ish) IPSec VPN with Shared ECDSA Certificates for Host to Host Connections
Let me start off by saying that using certificates for your IPSec VPNs adds another layer of complexity onto your connections. However what I’ve tried…
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…
How to Create a Site to Host VPN on Ubuntu for AWS, Azure and Linode with pfsense
This tutorial will guide you through setting up a VPN from your pfsense firewall router, to your Ubuntu server hosted in the cloud. Many of…
Public DNS Servers
Sometimes you need a list of public DNS servers, there are some common ones and some not so common ones, here I present my go…
How to Create a Websense Content Gateway (WCG) on CentOS
When you implement a Websense proxy solution and you don’t guy one of their appliance then you have to setup the proxy components yourself. This…
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…
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…
An Immature Way to Use Sudo
gyp@server12:~$ apt-get update E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) E: Unable to lock directory /var/lib/apt/lists/ E: Could not open…