DNS Cache Poisoning

Recently a DNS expert found a flaw in the way that DNS servers talk to other DNS servers to get records that allows interested parties (hackers) to insert their own records. If you need a primer: the Wikipedia link. Well… a DNS flaw is no fun without a tool to use it. So this guy “HD Moore” wrote a program (script) that takes advantage of this and makes it relatively easy for someone to use something called Metasploit to tinker with it.

Failing Hard Drives

So lots of people use computers, and lots of people have harddrives. At my work I deal with lots and lots of computers and lots and lots of drives. So during a week I see plenty of failing drives, just because of the statistics. So now-a-days I run a “smart test” on the drive to see how it is. Unfortunately most drive testers and smart tests are crap. So I made my own and I want to share it with you….

Putting the Clock Together

We have finally built enough pieces of the clock together to get some digits! It basically comes down to a white wooden box, a piece of cardboard with the LEDs wired, running to a RJ45 jack. Then a stryofoam cutout painted black, with a white piece of paper and plexyglass on top for a face. Here is the template with wired LEDS: A multitude of completed digits (still missing the blank faceplate).

Great American Teach In - Wikipedia

This is a video that I made for some fourth graders in an attempt to explain what Wikipedia is, how it works, and why it is neat. We made a new article together, and they all went home with a piece of fiber optic to remind them of the event. This is the video I showed them for historical purposes: Get the Flash Player to see this player.

Blogging = Human Salvation

Now hear me out, I used to be a hater. It seems that the more people blog, the more the internet is loaded up with wasted bandwidth and ad space. The truth is that blogging has a very small marginal cost, and usually blogging occupies time that would not otherwise be spent doing “productive” things. But! What if all of humanity blogged, and then we could aggregate all blogs on the internet.

Clock Primer

Here is the intro to the clock project: We start with a template made at a sign shop, and the cover the edges with aluminum tape to protect them from the heat from the hot wire. I’ve pushed out holes with a strait wire and a blow torch to give my entry points for my hot wires. Its going to be a plunge and cut job. The laserpointer helps guide the hot wire because it inevitably bends and makes crooked cuts.

Whiteboard Whiteboard Interactions

Here are some of the messages that are passed back and forth between my roommate and I… Sometimes we make up silly things… late at night… Sometimes we borrow each others things… And we get the better of each other with our antics… Our true feelings for each other? To do list… Sometimes we DON’T let each other borrow things…

Compact Flash Replacement

My laptop is a Sharp MM20, which I knew I was going to spraypaint eventually, I just needed a reason to. After about a year of wear and scratches from abuse, it was time. I’m replacing the harddrive in my laptop with a 4GB flash card. It should be faster: /dev/sdb: Timing cached reads: 3532 MB in 2.00 seconds = 1766.79 MB/sec Timing buffered disk reads: 58 MB in 3.10 seconds = 18.

Next Piece: Armband

We were thinking it would be cool to have the LCD display be on the arm, instead of the side of the gun. So we have modified roller-blading wrist-guards for the purpose: Watch Karl Show It Off! Karl’s Mom helped with the sewing. Next we’ll add buttons for mode and backlight. I think they will be very thin and unobtrusive.

Our First Real Gun

Here it is, the big milestone: our first real gun! From this: To this! You can see how we have gutted an air-soft gun, and inserted our led’s and switches to turn it into a lasertag gun. All of our guns will be interchangeable as they will all have the same Cat-5 Pinout. Eventually we will have an array of guns and we can change their properties in software. (Reload times, shots per clip, damage per shot, etc.