Welcome to the yubico-pam wiki!
Currently the following pages exists in the wiki:
ReadMe -- Installation and configuration of the Yubico PAM module
TwoFactorPAMConfiguration -- How to configure PAM to get two factor authentication
YubikeyAndSSHViaPAM -- Step by Step Guide for Configuration of Yubico PAM module to provide Two-factor legacy Username + password + YubiKey OTP authentication for SSH logons.
LocalAuthenticationUsingChallengeResponse -- How to use the PAM module for offline disconnected authentication using Challenge-Response.
ChallengeResponse-(on-Mac-OS-X) -- How to use Challenge-Response (permits offline validation) - some parts specific to Mac OS X
Yubikey-and-SELinux-on-Fedora-18-and-up -- How to get pam_yubico to work with SELinux on Fedora 18 and up
VPN and Radius related guides :
UbuntuFreeRadiusYubiKey -- Ubuntu FreeRadius YubiKey
YubiKeyAndFreeRADIUSviaPAM -- Step by Step Guide for Configuration of Yubico PAM module to provide Two-factor legacy Username + password + YubiKey OTP authentication for RADIUS logons.
YubiKeyAndFreeRADIUSwithsinglefactorauthenticationviaPAM -- Step by Step Guide for Configuration of Yubico PAM module to provide Single-factor YubiKey OTP authentication for RADIUS logons.
YubiKeyAndOpenVPNviaPAM -- Step by Step Guide for Configuration of Yubico PAM module to provide Two-factor legacy Username + password + YubiKey OTP authentication for OpenVPN logons.
YubikeyAndRadiusViaPAM -- How to get Yubikey OTP authentication via Radius to work