I was working with a customer the other day trying to come up with a way to import a bunch of IP addresses into a white list on AWS. We came up with the approach of using Managed Prefix Lists in VPC. I wrote some Python in order to grab some code from an API… Continue reading Updating AWS Managed Prefix Lists
Category: Networking
Building Dynamic DNS with Route53 and PFSense
I use PFSense as my home router, firewall, VPN and much more. I’m sure a lot of my readers do as well. One thing that I have always set up is an entry in Route53 that points to my public IP address on my PFSense box. However, I use Comcast so, my IP address is… Continue reading Building Dynamic DNS with Route53 and PFSense
Where Is It Five O’Clock Pt: 1
I bought the domain whereisitfiveoclock.net a while back and have been sitting on it for quite some time. I had an idea to make a web application that would tell you where it is five o’clock. Yes, this is a drinking website. I saw this project as a way to learn more Python skills, as… Continue reading Where Is It Five O’Clock Pt: 1
Slack’s New Nebula Network Overlay
I was turned on to this new tool that the Slack team had built. As an avid Slack user, I was immediately intrigued to test this out. My use case is going to be relatively simple for the sake of this post. I am going to create a Lighthouse, or parent node, in an EC2… Continue reading Slack’s New Nebula Network Overlay
Discovering DHCP Servers with NMAP
I was working at a client site where a device would constantly receive a new IP address via DHCP nearly every second. It was the only device on the network that had this issue but I decided to test for rogue DHCP servers. If someone knows of a GUI tool to do this let me… Continue reading Discovering DHCP Servers with NMAP