reillysiemens / resolving-a-dns-issue

The scripts and data for my blog post on resolving a DNS issue.

Resolving A DNS Issue

This repository contains all the scripts and data necessary to reproduce my blog post on resolving a DNS issue.

You'll need:

• Zsh
• Python 3.6+, Pygal, and pandas.
• Graphviz

To run the HTTP test on your own network:

export ROUTER_IP=${YOUR_ROUTER_IP}
export ROUTER_HOSTNAME=${YOUR_ROUTER_HOSTNAME}
export OUTPUT_FILE="your-results.csv"
zsh http-test.zsh

To run the chart generation script:

python3.6 chart.py ${OUTPUT_FILE} ${OUTPUT_FILE%.csv}.svg

To find failure percentages:

zsh percent-failures.zsh

To generate the It's Always DNS diagram:

dot -Tsvg its-always-dns.dot -o its-always-dns.svg