Category: IT

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Naively Detecting Pivots with NetFlow

The experiment started with a simple question – can you detect interesting behaviour with only NetFlow data? There are numerous tools on the market that can do this will full network taps but that’s...

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Grabbing Your iRules by the TesTcl

Ok, I’ll admit, it’s hard to pass an opportunity to joke about a name such as TesTcl. Much like it’s namesake, it’s a serious issue. My current employer makes use of F5 load balancers....

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Radio Station Mobile Apps – My Experience

It’s funny, I speak to developers and occasionally (jokingly!) get brushed off as an unknowing infrastructure support type. That’s despite writing code for over 20 years, a Computer Science degree that imprinted the “Gang...

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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...