Note:

This process assumes that you specified --prefix=/usr in the configure command.

  1. Edit the sshd_config file. 
    sudo vi /etc/ssh/sshd_config
    1. Add pingid_fc with its full path. 
      Match User joe
ForceCommand /usr/sbin/pingid_fc
      Note:

      Disable PermitTunnel and AllowTcpForwarding in the sshd_config file because tunneling and port forwarding are performed before PingID authentication is triggered.

  2. To apply the changes and activate PingID MFA integration with SSH, restart the sshd service. 
    sudo service sshd restart