Pritunl - Enterprise Distributed OpenVPN and IPsec Server

Pritunl is built with OpenVPN and any existing OpenVPN client can be used. IPsec is used for site-to-site links and VPC peering. All traffic between clients and the server is encrypted. Optional two-step authentication is available using Google Authenticator. It can be easily distributed across multiple servers and different datacenters for improved performance, high availability and automatic failover when an instance fails.