In this episode I share my firewall story, we go over our IP address issues, and a few things we will be working on in the future.

Back in 1998 and 1999 I was going to school for IT. One of the things I learned about was a firewall. Before getting off of dial-up internet and switching to cable, I decided to build my own firewall. Around the same time I had learned about Red Hat Linux from a book I found at the book store. I also found a book on building a firewall using Linux or OpenBSD. With my limited Linux knowledge, I was able to build my own firewall. I new next to nothing about firewall’s. I built my own anyway. You learn a lot by playing with the devices.

We ran into an IP address issue with our current firewall project. Dorothy wanted to use the network addres 10.10.0.0/16. The IP address she wanted to use for the LAN side of the firewall was 10.10.1.0/16. This became a problem when we tried to assign a set of addresses for the DHCP server. It turns out that 10.10.1.0/16 isn’t the first IP address in the 10.10.0.0/16 network. It happens to be in the middle. Issues like this are discovered when you play with the devices. Something that a book may not cover.

Future Projects

  1. Agile – Project management process
  2. Secunia PSI – Identify and upgrade the software on your PC
  3. RansomFree – Protect your PC from ransomeware

 

Episode 4 – The Firewall Story

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