Intel 1520 - Manual (Page 150)

138 Intel NetStructure Cache Appliance Administrator’s Guide
News article caching
The Intel NetStructure Cache Appliance can function as a news server or a
caching news server. News, also known as USENET and discussions, is a system
of online discussion groups. NNTP is the protocol used to retrieve and distribute
these discussion groups. The appliance supports NNTP as specified in RFC 977
and many common and proposed extensions.
To read news articles, users need a news reader, such as Netscape Communicator
or Microsoft Internet Explorer, and access to a news server. The appliance is a
caching news server. It can be configured to sit transparently between users and a
parent or backing news server, increasing responsiveness for the user and
decreasing network bandwidth use and the load on the parent news server.
Figure 9 Intel NetStructure Cache Appliances caching news articles for a distant
NNTP server
The appliance provides many options that you can configure for supporting
parent NNTP servers. The rest of this section describes the appliance’s NNTP
features.
Parent
NNTP
Server
Intel NetStructure
Cache Appliance
users
users
Intel NetStructure
Cache Appliance