https://skelmis.co.nz/tags/infrastructure/ Recent content in Infrastructure on Skelmis Hugo en Sun, 27 Aug 2023 00:00:00 +0000 https://skelmis.co.nz/cheatsheets/server-mfa/ Sun, 27 Aug 2023 00:00:00 +0000 https://skelmis.co.nz/cheatsheets/server-mfa/ A TL;DR for setting up MFA on Ubuntu servers for SSH access because it took more than one guide to setup. Login to box sudo apt install libpam-google-authenticator sudo nano /etc/pam.d/sshd Scroll to bottom and add this under @include common-password auth required pam_google_authenticator.so Ctrl + S, Ctrl + X sudo nano /etc/ssh/sshd_config Set ChallengeResponseAuthentication to yes. This may be KbdInteractiveAuthentication in newer versions Ctrl + S, Ctrl + X sudo systemctl restart sshd.