Category: IT

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Polling Elasticsearch Queries through SNMP

We’ve got a technical problem that sounds simple to fix – what traffic levels are we seeing from a specific set of sources? This traffic passes through a firewall (Sonicwall) appliance and even as...

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VXLAN Puppet Module

If you’ve done any work with OpenStack or VMware NSX, you’ve likely come across VXLAN. It’s an encapsulation protocol that allows you to wrap layer 2 traffic in unicast UDP packets for traversal over...

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Single vs Multi Channel Architectures for WiFi

Almost every area of IT has its holy wars. Whether it’s processors and AMD vs Intel vs ARM, GPU with AMD vs NVidia or even operating systems with Linux, Windows and even BSD in...

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L3 MPLS VPN on Brocade Ironware

This might seem a bit of an odd post to be making. Not just because the MLXe router we’re using will probably be painted a very fetching shade of purple in future editions, but...

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Moving Zones Between Views in Infoblox

It turns out that moving zones between views in Infoblox is a surprisingly hard thing to do. The challenge ended up on my desk after we made the decision to operate a separate external...

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Modern Protocol Problems with an Old Firewall

Legacy systems are part of any mature technical environment. While I was a combination of both impressed and shocked when recently presented with a SunOS 5.7 box (OS dated 1998!) I had to assist...

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Reading Cart Chunk with PowerShell

Look at the audio files in any professional radio playout system. They’ll likely be linear WAVE files with the associated metadata stored in the cart chunk format. With this information it’s usually enough to...