An email with a trojan Microsoft Word document made it past the spam filter today at work. At least one user reported opening the attachment. The attachment was named: DOCO943488.doc, but running the file through virustotal.com it was clear that it’s been known by other names.. To help affected people find this page here are…
You connect into the server and type “w” to see who else is on. You see a connection from an IP you don’t recognize! 14:43:11 up 5 days, 22:32, 2 users, load average: 0.52, 0.41, 0.36 USER TTY FROM LOGIN@ IDLE JCPU …
I like Bash, but it isn’t well suited for some tasks. For fun I sometimes ignore that. Occasionally people seem to find this useful. In that spirit, here is my implementation of the popular Luhn / mod10 algorithm used in credit card, IMEI, and other number sequences. download [luhn.zip] # Returns Luhn checksum for supplied…
Project Introduction I made an adapter to take classic video game controllers for Sega, Atari (2600, 7800) and Commodore (VIC20, C64, C128) and adapt them to work as a 5 button USB keyboard (4 directions and a fire/trigger key). The joystick now works like an external numeric keypad. Pressing the fire/trigger button will act like…
Project Introduction For fun I made this USB power button with an Arduino Micro/Leonardo-like board (by which I mean one using the Atmel ATMega32u4 MCU with USB controller). The project details are below in case you should want to read or watch how I did it. I used an ATMega32U “arduino”-like board from Amazon.com although…
I had need of a 3.3v TTL serial interface to reprogram a device I was working on. Looking around I realized I had mostly 5v logic USB to serial adapters. I figured the Raspberry Pi would work well enough, but I also needed hardware flow control. As it turned out the Pi can do RTS…
We’re running an older installation of Elastix at my office, version 2.0.0 (release 58) on top of freePBX version 2.7.0 (release 10). The call trace feature was bothering me. This feature is mapped to the *69 feature code as is common with many LECs in North America. In the default implementation you hear an announcement…
Need an Asterisk setup? Why not combine the long term support of an Ubuntu LTS release with the long term support of a Certified Asterisk release? Certified Asterisk releases are supported for around 4 years, and Ubuntu LTS for around 5 years, helping ensure you don’t need to mess around with major reconfiguration again for…
I recently upgraded the firmware of the IP phones in a small office using my Grandstream HTTP configuration pusher. One of the users complained that the Caller ID display under the new firmware was too small to be legible. I’m not convinced that the size of the font actually changed, but I wanted to offer…
Well, it’s Christmas time again. I really haven’t had a lot of blog posts since last Christmas, so my 2013 desk-decorations (deskorations?) are still fresh on my mind. I cheated this year, and didn’t stick to stuff I had on hand (although at the core is a Raspberry Pi, which the office had available). I…
