Results (
Thai) 1:
[Copy]Copied!
During typical HTTP browsing, Websense responds to a request for a blocked Web site with a 302 MOV, redirecting the user's browser to the block page hosted on the Websense Block Page Server (BPS). The 302 MOV successfully tricks the browser into thinking it is receiving a valid response to the user's web request. To do this, Websense has to correctly determine the TCP sequence numbers and the origin server's IP address or else the browser will simply ignore the block page redirect.Note that a standard HTTP block page is still presented to a workstation for blocked HTTPS sites, but since it is not part of the secure encrypted HTTPS connection, the Browser automatically ignores it.Although Websense is able to successfully block HTTPS requests, in order display the block page Websense would need to break the encryption, change the TCP sequence numbers, and re-encrypt the data with the origin server's private key. Only then would the browser believe the response came from the destination web server.
Being translated, please wait..
