Hi, I’m Marc

A network, infrastructure and security engineer based in Wales.

Embedded YouTube Player

Watch YouTube videos with a local watch history.

DNS toolbox

Query DNS records including A, AAAA, MX, TXT, NS and more.

Password generator

Generate secure passwords with varying lengths and complexity.

Protocol header cheatsheets

Quick reference for Ethernet, IP, TCP, UDP and ICMP headers.

Posts

26 Apr 2023 Forcing uniqueness in a single column on a Google Spreadsheet
13 Aug 2018 The FizzBuzz test, LINQ and code golf
09 Aug 2018 Linux Performance Tools
04 Jan 2018 How to check if the Microsoft Visual C++ Runtime is installed
11 Oct 2016 Brocade - Cannot upgrade directly to 6.4. Please upgrade to 6.3 first and then upgrade to 6.4.
28 Sep 2016 Using the PowerShell cmdlet Get-WinEvent to search and filter event and diagnostic logs
16 Jul 2015 How to serialise classes which include IPAddress or IPEndPoint
22 Apr 2015 How to receive WndProc messages in WPF
25 Jan 2015 Subverting RSA key generation
23 Oct 2014 Debian package for Mono on Beaglebone Black (ARMhf)
13 Jan 2014 Cross domain communication with Ajax and JsonP
07 Dec 2013 Beaglebone Driver Problem
12 Apr 2013 Convert bytes to KB, MB, GB, TB or higher using c#
12 Jul 2012 ASP.net Expressions Overview
26 Mar 2012 Get the current directory using C#
07 Sep 2011 Converting IPv4 to decimal, and back
11 Aug 2011 Creating a self installing windows service with c#
10 Aug 2011 Service “Must specify value for source” error.
20 Jul 2011 Exchange 2003, 0xFFFFFD9A and EventID 1159
19 Jul 2011 Tcpdump