How to Block IGMP Multicast Flood on a WLAN When Watching Telus Optik TV (IPTV)

After being a Shaw TV and Internet customer for several years, I recently made the switch to Telus Optik TV and Telus Optik High Speed Turbo Internet. While I’m very happy with both the Optik TV and Internet so far, there have been a few bumps along the way. For example, the other day I hooked up a DD-WRT powered wireless router to the network and experienced an IGMP multicast packet flood when I turned on the TV. In this article I show you how to use ebtables to block an IGMP multicast packet flood on a DD-WRT WLAN when watching IPTV. Continue reading » How to Block IGMP Multicast Flood on a WLAN When Watching Telus Optik TV (IPTV)




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The People vs George Lucas and The Lightsaber vs The Blaster

Warning: The following story is truly nerdy and lives up to the NerdBoys.com name…

Last week I watched the Star Wars documentary The People vs George Lucas. Essentially, it’s about the disillusionment that fans of the original Stars Wars trilogy felt when they watched the prequel Star Wars trilogy.

As I listened to the angry comments of the fans in the documentary, I found myself saying Continue reading » The People vs George Lucas and The Lightsaber vs The Blaster

How to Fix Missing Operating System Error When Booting System Rescue CD from USB Flash Drive


Today I installed SystemRescueCD 2.3.1 on a new USB flash drive (i.e. USB stick). When I tried to boot from the drive, I got the error message “missing operating system”. Read on to see how I fixed the error. Continue reading » How to Fix Missing Operating System Error When Booting System Rescue CD from USB Flash Drive

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dnsmasq, Split DNS and the Dreaded “No address (A) records available” Error

I run the highly popular and lightweight dnsmasq DNS forwarder and DHCP server program on numerous embedded devices. One of the cool things you can do with dnsmasq is something called split DNS (some people call it split-brain DNS or split-horizon DNS). If you don’t know what it is, go check out the wikipedia story.

To implement split DNS with dnsmasq, you Continue reading » dnsmasq, Split DNS and the Dreaded “No address (A) records available” Error

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