Authentication

OPNsense, Active Directory, OpenVPN and 🔒 TOTP

January 26, 2020

Step-by-step guide to an OPNsense OpenVPN server authenticating against Windows Active Directory over LDAP with TOTP two-factor tokens for each user.

January 18, 2019

Use SSHFP DNS records to verify SSH host keys automatically. Generate them with ssh-keygen -r and enable VerifyHostKeyDNS in your ssh_config.