Picture of Dan Donoghue

Dan Donoghue

You can find me on GitHub, LinkedIn, and Facebook

I'm just some guy from Cornwall who buggers around with computers, rides motorbikes, watches film and TV, and whatever else I feel like doing.

Bulk Updating Usage Location in AzureAD

Demo users get created as Americans. I wanted to set them up as good old proper British users.

Managing Firefox with Intune

Customising Mozilla Firefox with Microsoft Intune using Group Policy ADMX Templates

Deploying BGInfo with Intune

Quick and dirty deployment of BGInfo to make labbing easier

PCIe Passthrough on Fedora 38

How I got PCIe Passthrough to work for multiple VMs on F38

Redneck Windows Unattend.xml

How to make Windows use an unattend.xml file, the bodge way

DHCP Option 121 Classless Static Route values

How to work out what value to provide for O-121 to give routes to clients

LSI2008 SAS Controller on EL9

The effort needed to get a SAS controller working on EL9

Aria2 Web on EL7

How I set up Aria2 with a WebUI on CentOS

What's the deal with pings?

Some people seem to think that turning ICMP Echo Replies off makes your network more secure. I'm going to explain why this is a load of old bollocks.

127-bit masks vs 64-bit masks on Point-to-Point links

Explaining why /127 is better than /64 on Point-to-Point links by counterarguing a Reddit comment

Wrong destinations are the way to get there

Sending an IP packet to the wrong place can let you do some freaky things

Setting SELinux Contexts the Proper Way

SELinux is confusing, especially when almost every example is bullshit. This is a shitty attempt at saying the proper way to set SELinux contexts on files and directories.

Option 121: My Favourite Option

I had some performance issue with copying files to but not from a subnet. DHCP option 121 to the rescue!

Building Deluge on CentOS 7

I've decided to reinstall the OS on my server from an aging version of Fedora to CentOS. Since I use Deluge for .torrent downloads, and don't want to switch to another client, I've had to build it from source because it isn't included in any of the EL7 repositories.

Bridging Router Interfaces in IOS

Needed to bridge two router interfaces on a Cisco router to save from having to install a switch.