Tag: tech

Traffic Control on Linux with FireQOS

In order to make full use of my half-duplex WiMAX link, I started looking for anything and everything I could use to optimize it. Linux has some pretty decent utilities with iproute2 and netem to handle these type of configurations. They don’t compare to OpenBSD’s PF, but they work once you get the setup in

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Simulating WAN Links with Linux and TC

Simulating WAN links used to be a difficult process. I would load FreeBSD with a dummynet driver and play with the settings to tweak where I needed it for the activity. OpenBSD with ALTQ made this a step simpler with the ease of bridging adapters. On a recent project for Spec Ops Technology, I needed

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—- Cross Post from the Spec Ops Technology Blog —- Spec Ops Technology prides itself on taking difficult problems and providing practical engineering solutions. Quite often this real world experience is born of a real world problem we personally faced. There is a passion we look for in our engineers that breeds a team that, by

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Travel Gear for the Globe Trotting Geeks

65,000 km a month is my current travel routine with my international engineering firm, Spec Ops Technology. In my past there was formidable travel, but it always was within the continental US which removed some of the complexities in life. With the crossing of borders the type of equipment you need changes dramatically. Below are

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OpenBSD Laptop mini-HOWTO

Awhile back I wanted a fully supported laptop to use as my OpenBSD development machine. I ended up with a Lenovo u150 which has worked out great and the price was right. Along the way of setting it up, I have learned a few tricks to get OpenBSD purring on it. Wanted to share for

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