Tuesday, November 22, 2011

Network Protocols

I've been looking over the supported protocols in IP and noticed the following protocols:

NVP http://www.ietf.org/rfc/rfc741.txt


I've used and been interested in VoIP for several years.  It was really neat to see a precursor implemented in the 70's.

I had seen SCTP mentioned here and there but never really looked into it.

Here's a great overview: http://www.isoc.org/briefings/017/

Looks like it will become a widely used protocol at some point.

Learning about this stuff reminds me of when I was learning how to use DOS in the early nineties.  I thought I was sooo cool because I was navigating directories and programming batch files.  I later got into linux and read about it's background and history.  "You mean UNIX has been around for 30 years and I had no idea that my beloved DOS was a disgrace?"

Saturday, February 26, 2011

USU VPN Linux Client

I needed to connect to the Utah State University Virtual Private Network.  They had a page about connecting with linux, but it didn't work for me.  I ended up writing a simple script to configure, start, and stop the vpn.  You can find it here:


It works for me on Ubuntu 10.10, as long as I installed an updated openswan (as noted in the README).