What is SSL VPN ?
SSL VPN is a form of VPN that can be used with a standard web browser. Unlike IPSec VPN, it does not require the installation of specialized client software to end user's computer. SSL VPN consists of one or more VPN devices, to which the end user can connect securely through standard web browser.
How is SSL VPN different from IPSec VPN ?
IPSec is integrated with the IP layer of the OSI protocol stack. But SSL VPN uses the Secure Sockets Layer for authentication and encryption. It uses standard web browser to communicate with the VPN devices and the traffic between the web browser and the SSL VPN device is encrypted with the SSL protocol, or its successor the TLS protocol.
How does SSL VPN work ?
There are mainly two types of SSL VPN :
- SSL Portal VPN
- SSL Tunnel VPN
What is SSL Portal VPN ?
In this type of SSL VPN, the end user connects to a single website called portal, and from the portal it accesses multiple network services. The end user first accesses the SSL VPN gateway and authenticates herself using standard authentication method supported by the gateway. She is then redirected to the web page of the portal through which she can connect to other network services.
What is SSL Tunnel VPN ?
This was a very short introductory article about SSL VPN. Hope it helped.
How do NAT and VPN work ?
PPTP vs L2TP vs OpenVPN vs SSTP vs IKEv2 VPN - How are they different from each other ?
What is IPSec ?
How does IPSec protocol work ?
How do Proxy Servers work ?
How does Tor work and how does it help in anonymous browsing ?