Disallow Million Most Common Passwords

I was working on a project recently and was asked if it was possible to stop users from setting common passwords.   Using the pam_cracklib module and @DanielMiessler  common passwords list it is as simple as these 3 commands:

sudo apt-get install libpam-cracklib -y
sudo wget https://raw.githubusercontent.com/danielmiessler/SecLists/master/Passwords/10_million_password_list_top_1000000.txt /usr/share/dict/ -O /usr/share/dict/million.txt
sudo create-cracklib-dict /usr/share/dict/million.txt

Seriously,  that’s it.

Here is what a user will see when they attempt to use a password from the list: 

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