This chapter covers the Untangle solutions used to provide virtual private network (VPN) services. Untangle provides two solutions: OpenVPN and IPsec. OpenVPN is an SSL/TLS-based VPN, which is mainly used for remote access as it is easy to configure and uses clients that can work on multiple operating systems and devices. OpenVPN can also provide site-to-site connections (only between two Untangle servers) with limited features in comparison to IPsec.

IPsec, a paid module from Untangle, Inc., is mainly used for site-to-site connections as it provides great features and performance in comparison to OpenVPN. It can also be used to provide a remote access service by leveraging L2TP/IPsec, which is more complex to set up and configure than the OpenVPN client.

A list of topics that will be covered in this chapter are as follows: