serial port information

Serial/Null Modem notes

A very interesting list of notes about serial connections. This reminded me of the Lantronix issue I dealt with a few months back in which the Lantronix would literally begin to crawl when hooked up to a Nortel (I think it was a Nortel) phone switch: Plug in the phone switch, Lantronix crawls; remove phone switch, Lantronix returns to normal. Literally NO setting I could put in place would correct this. This link gave me some new ideas that didn't pop up at the time.

Slight edit: This link shows a nice option for making null modem adapters with RJ45-to-DB9 adapters. I really want to try this out now.

DNS Benchmark tool

DNS Benchmark tool from google.

Cryptography of SSH

A guide for how SSH works: Cryptography of SSH

RF Antenna tutorial

RF Antenna tutorial

Clack

I had never heard of this application but it sounds pretty neat.

Clack. The author, Dan Wendlandt had some nice resources linked on his page.

UNetbootin

UNetbootin - Universal Netboot Installer. UNetbootin loads utilities or installs Linux/BSD to a partition or USB drive without a CD.

Free CCNA workbook

Free Cisco CCNA workbook