How to spot phishing emails and check for breaches

This blog post is going to discuss how to spot phishing emails and check for breaches as well as what you can do to protect yourself from them. I think it’s a fact of Internet life that if you have an email address, you’re going to get phishing emails. Some will be fairly easy to…


How to configure your DD-WRT Wireguard VPN

This post covers how to configure your DD-WRT router Wireguard VPN.There are a number of options for connecting remotely to a router and the DD-WRT OS is no different. I’ve covered connecting using OpenVPN in another blog post and while they also support PPTP it’s considered insecure these days so the only real options are…


How to configure your DD-WRT OpenVPN

In this blog post, I’m going to cover how to configure your DD-WRT OpenVPN (Virtual Private Network). Now there are a number of ways to use a VPN but I’m going to set up the router so we can connect to it with a computer. We could connect a second router and have so-called site-to-site…


The Portable Rackmount Laptop Tray – and why as a network engineer, you need one

If you’ve ever found yourself next to a datacentre rack cradling a 3-kilo laptop in one arm while typing away with the other, then the portable rackmount laptop tray, a network engineer’s must-have accessory could be just the thing for you. Network engineer in a typical pose when working next to a datacentre rack If…


Network Toolkit Essentials

In this blog, I’m going to cover what I think of as my “Network Toolkit Essentials,” the tools I use in my role as a network engineer. At the time of writing, all of the below are free apart from PRTG, which is free for up to 100 sensors. Some I use on a daily…


Troubleshooting PXE boot with Wireshark

In this blog we’re going to cover troubleshooting PXE Boot with Wireshark, in this case, we have an existing capture of a PXE boot issue. PXE boot is the process of booting a network-connected device from the network using the Preboot eXecution Environment. The client needs to be configured to boot from the network either…


Connecting a home network to the Internet

In this blog, we’re going to cover connections to the Internet, or how to connect a home network to the Internet. Now there are a number of different ways to connect your home network to the Internet but all of them require connecting through a provider network of some sort. Most home or small business…


A simple guide to IPv4 addressing

This blog is going to serve as a simple guide to IPv4 addressing. Even though the *RIPE NCC has run out of IP address space to allocate (just two days ago as I write this), IPv4 remains relevant and is something you’ll have to deal with if you’re interconnecting network devices. There are after all…


How to script interface configurations for Live Raizo

In this blog, I’m going to cover how to script interface configurations for a Virtual Machine that’s booting from a “Live” iso image. In this case, it’s a Live Raizo iso image. In some of my earlier blogs, I’ve covered how to create a Live Raizo Virtual Machine with persistence using VirtualBox, and then configuring…


How to route to a GNS3 host in a Live Raizo VM

In this blog, Iā€™m going to cover how to route to a GNS3 host in a Live Raizo VM. To do this, we need to set up routing from the host machine, to the Live Raizo VM and on to the GNS3 host that resides within that environment. It needs a couple of routing hops…