Category: IT

802.1x Authentication Prompt 0

Wired 802.1x on OS X

Getting 802.1x going on OS X for wired networks is not something that should be particularly difficult. In fact, when you connect the machine to the network, you’ll get a little popup window asking...

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TTL for Now

It’s always the little things that get you in technology. I’ve seen instances of stations taken off air by a simple fuse blowing. You also wouldn’t believe the level of embarrassment that can come...

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SIP-ing Through the Firewall

Here’s an odd puzzle for you. Fire up a SIP soft-phone and connect it to an external provider. Dial a number and you can make a call successfully. Doesn’t sound particularly unusual. Now fire...

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Shared Nothing Hyper-V Infrastructure

The “standard” way to build a VM farm involves centralised storage, usually some form of SAN, with a number of compute nodes. The resultĀ is an infrastructure that looks something like this:   I’ll admit...

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WDS for Windows and Linux

Where I work is very much a Windows shop. Well, there’s also almost 2000 OS X laptops to worry about. However, most of the infrastructure we operate is built around Windows. Active Directory provides...

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Calling in the Foreman

For what feels like a really long time now, configuration management systems such as Puppet have been the norm. Even in a small charity I do work for I’ve had it deployed for managing...

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Patch Management in the Linux World

At one radio station I volunteer for, we’re mainly a Linux shop. Rivendell provide playout, Icecast streams the audio and it’s Debian on the desktop. With the small number of systems involved, keeping them...

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It’s Getting Meta in My Router

Virtualisation has really taken over the world of IT. In the day job, I don’t buy new servers, I ask for a VM to be provisioned on an existing VM cluster. Even in the...

A simple hub and spoke sample network. 0

Who’s using my bandwidth?

It’s one of those questions you often don’t think about until you start running into problems. You’re hitting the bandwidth limit of some link but not sure what to blame it on. The pretty...