1. Overview This document is an installation guide for the MFA VPN provided by RCDevs. Hence, the installation or configuration of WebADM, including token registration is not covered in this guide. For installation and usage guides of WebADM and OpenOTP, please refer to the RCDevs WebADM Installation Guide and the RCDevs WebADM Administrator Guide available through the RCDevs online documentation Website. 2. Installation of MFA VPN On a RedHat, CentOS or Fedora system, you can use our repository, which simplifies updates.