Author Archives
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Adding SANs to Let’s Encrypt Certificates – LE Series Part 2
As we already went through in part 1 of this series, requesting certificates using Let’s Encrypt and certbot is rather easy. Today we’re going to look at how you can request certificates with multiple Subject Alternative Names, or SANs for… Read More ›
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Enabling HTTP/2 on NGINX – NGINX Tricks Part 3
As you might have heard, there’s a new version of HTTP out there that’s far superior to HTTP/1.1. I won’t go into what exactly has changed in HTTP/2, but it’s faster and more secure, and allows for some even more… Read More ›
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Implementing HTTP 418 Errors on NGINX – NGINX Tricks Part 2
A year or so ago I got intrigued about how to “properly” implement custom HTTP errors on NGINX after watching this rather funny DEFCON talk. The speaker talks about returning “weird” HTTP codes since browsers usually seem to display anything… Read More ›
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Redirecting IP Traffic to HTTPS – NGINX Tricks Part 1
Lately I had a peculiar issue, I wanted to secure a web server running NGINX with HTTPS using Let’s Encrypt, but almost all traffic to said web server request the web page using the IP address of the server, since… Read More ›
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Getting started with Let’s Encrypt & Certbot – LE Series Part 1
I’ve been enjoying myself immensely playing around with Let’s Encrypt these last few days, and discovered a couple solution to common problems and issues, so I thought I’d make a small guide mostly for my own reference on how to… Read More ›
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Configuring Ubuntu to Patch Itself
After a couple of years in the IT infrastructure world, you’ll be faced with the greatest task of all, updating servers every month or so. This has always been the most brain dead task imaginable, but now with virtualization, we… Read More ›
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Exporting Exchange Mailboxes to PST files
As any admin at any company will tell you, you can never really trust anybody that tells you it’s okay to delete something, ever. This holds especially true for email. If I had a euro for every time I was… Read More ›
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How to Configure SNMPv3 on Cisco iOS Switches – Cisco Networking Series Part 2
Configuring SNMPv3 can be a daunting task compared to earlier questions, just from the copious amount of authentication parameters compared to earlier SNMP versions. In this short primer I’ll walk you through the steps necessary to set it up to… Read More ›
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The Ultimate Trailer Plug Wiring Chart
I’ve been working on converting all my trailers and cars to 13-pin plugs and sockets lately, as I got fed up with corroded connectors and adapters. What I quite quickly ran into was the issue of finding a reliable chart… Read More ›
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How to Really Set Up NTP on HP ProCurve / Aruba Switches – HP Networking Series Part 7
This is a short guide on how to set up NTP time synchronisation properly on HP ProCurve / Aruba network devices. Astute readers of this blog might remember that I covered this topic back in 2015, and you’d be right,… Read More ›
