Proxy and cache

The Bloxx Secure Web Gateway functions as a Web proxy with an on-board cache, which secures, simplifies and speeds up Internet access.

The cache saves requested Web pages and other files such as images that users have requested onto a high performance hardware platform so that successive requests for these pages or files can be delivered from the cache, rather than requesting it again from the Internet.

A page served from the cache will load faster than the same page retrieved over the Internet giving users the perception of faster performance. The caching can also reduce Internet traffic by up to 50%.

The Bloxx Web filtering appliance is installed on the Local Area Network (LAN) with one or more connections according to the type of connection mode. There are two basic connection modes, Pass-Thru and Directed Proxy. In Pass-Thru mode, the network effectively directs the user through the cache. This can be either via a layer 4 switch or router or directly through the Bloxx Web Filter.

In the native form of Pass-Thru with transparent caching, the Bloxx appliance has the same functionality as that involving a layer 4 switch; however, as no redirection to the cache is required, the latency is reduced by two Ethernet hops. Transparent caching allows much quicker and easier installation into existing networks with no need to reconfigure existing browsers. There is also a significant cost saving as a layer four switch is not required.

In Proxy mode, the browser is configured with the address of the cache and talks through it directly, which is especially useful when the Bloxx Secure Web Gateway is replacing an existing proxy server.