Secure Socket Layer Virtual Private Network (SSL VPN)

What is Secure Socket Layer Virtual Private Network (SSL VPN)?
A virtual private Secure Socket Layer (SSL) VPN network enables remote users to access web applications, client-server applications, and internal network connections without the need to install specialized client software on their computers.
Secure Socket Layer Virtual Private Networks provide secure and private communication for all types of traffic between devices that use similar technologies on public networks such as the Internet.

There are two main types of SSL VPN:

SSL Portal VPN: Allows individual SSL connections to websites so end users can securely access multiple network services. After authentication, remote users can access the SSL VPN gateway using any web browser using a method supported by the gateway. Access is via a website that serves as a portal to other services.
SSL tunnel VPN: Allows web browsers to securely access multiple network services as well as non-web protocols and applications through tunnels that run under SSL. SSL Tunnel VPN requires the web browser to process active content and provide functionality that SSL Portal VPN cannot access.