SSL VPNs
The Secure Socket Layer (SSL) protocol serves as an alternative VPN technology to IPsec. In particular, today’s web browsers support SSL as a way to dynamically create a secure connection from the web browser to a web server, supporting safe online access to financial transactions. This brief topic explains a few details about how you can use SSL to create remote-access VPNs.
Web browsers use HTTP as the protocol with which to connect to web servers. However, when the communications with the web server need to be secure, the browser switches to use SSL. SSL uses well-known port 443, encrypting data sent between the browser and the server and authenticating the user. Then, the HTTP messages flow over the SSL VPN connection.
The built-in ...
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