Authelia

"Authelia is a 2FA & SSO authentication server which is dedicated to the security of applications and users. It can be considered an extension of reverse proxies by providing features specific to authentication."

Install

curl https://apt.authelia.com/organization/signing.asc | sudo apt-key add -
sudo apt install -y apt-transport-https --yes
echo "deb https://apt.authelia.com/stable/debian/debian/ all main" | sudo tee /etc/apt/sources.list.d/authelia-stable-debian.list
sudo apt update && sudo apt -y install authelia=4.37.4-1
# Need to configure the system or it will not load properly
# Example errors
level=error msg="Configuration: authentication_backend: you must ensure either the 'file' or 'ldap'>
level=error msg="Configuration: access control: 'default_policy' option 'deny' is invalid: when no >
level=error msg="Configuration: storage: configuration for a 'local', 'mysql' or 'postgres' databas>
level=error msg="Configuration: storage: option 'encryption_key' is required"
level=error msg="Configuration: notifier: you must ensure either the 'smtp' or 'filesystem' notifie>
level=fatal msg="Can't continue due to the errors loading the configuration"
# Work in progress, please reference the docs to complete the configs. 
# Getting Started - https://www.authelia.com/integration/prologue/get-started/
# Authelia Configuration Template - https://github.com/authelia/authelia/blob/master/config.template.yml
# Authelia Config Example - https://gist.github.com/userdocs/7634b8a57e803e378b09c18225edd446
sudo systemctl enable authelia
sudo systemctl start authelia
sudo systemctl status authelia

References

https://www.authelia.com/
https://apt.authelia.com/stable/debian/packages/authelia/
https://www.authelia.com/integration/prologue/get-started/
https://www.authelia.com/integration/proxies/nginx/
https://github.com/authelia/authelia