To improve on-line security, the Endian Hotspot Appliance offers several services combining their abilities with those of the proxy. The sub-menu on the left-hand side of the page grants access to their configuration pages and options, which are summarised as follows:
HTTP - the web proxy: Access policies, content filter, SSL support (HTTPS), and antivirus.
SMTP - the proxy for sending e-mails: spam filter and antivirus .
DNS - the caching DNS: anti-spyware
A proxy server is a system, located between a client (who requests a web page or some resource) and the outside networks with the purpose to catch all the client’s requests, retrieve the requested resources, and transmit them to the client. The main advantage of a proxy server is its ability to cache (i.e., to store locally) all the pages that have been requested, making future requests of the same pages faster.