Secure SSH Using WiKID Two-Factor Authentication And TACACS+
This Link applies to: WiKID Strong Authentication Server Enterprise Edition, WiKID Strong Authentication Server Community Edition, Network Clients
These instructions are designed to help you configure and test using the WiKID TACACS+ protocol module via Linux PAM on Red Hat. This document has been updated to cover pam .99 and higher. We assume that you have already installed the open-source WiKID Strong Authentication Server Community Edition.
Link: http://www.howtoforge.net/secure-ssh-using-wikid-two-factor-authentication-and-tacacs-plus

