Description

Python script to parse a DNS zonefile and output information about certificates for each domain to a csv file.

Environment setup

Based on OSX 10.14.x (Mojave)

References:

• https://opensource.com/article/19/5/python-3-default-mac
• https://pipenv-fork.readthedocs.io/en/latest/install.html
• http://agiletesting.blogspot.com/2005/08/managing-dns-zone-files-with-dnspython.html

Install homebrew

• /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
• brew update

Install python

• brew install python
• brew install pyenv
• brew install pipenv
• pyenv install 3.8.2
• pyenv global 3.8.2
• echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n eval "$(pyenv init -)"\nfi' >> ~/.bash_profile
• source ~/.bash_profile

Run the script

Start the environment

pipenv shell

Build dependencies

pipenv install

Input file placement and cleanup

• Place your zone file in the input folder.
• Any entries in the form of "CNAME 1 " cannot be parsed by dnspython and must be removed from the file first.

Run the script against a file for domain example.com

• pipenv run python main.py -i input/example.com.zonefile.txt -d example.com

Results

You should get a csv file in the output folder. A progress bar and any error will be output to the screen.