Availability Guide for Application Design

Improving Availability on the Internet
Availability Guide for Application Design—525637-004
3-13
The iTP WebServer Architecture
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Resource Locator Service (RLS)
This service lets you define multiple web servers to be used interchangeably for
access to the same URLs. The requester need not know which server handled a
request.
For a complete list of the standards supported by the iTP WebServer, consult the
iTP Secure WebServer System Administrator’s Guide. This Guide contains all the
information required to install and run the iTP WebServer.
The iTP WebServer Architecture
The iTP Secure WebServer Architecture on page 3-14 shows the place of the iTP
WebServer in the complete NonStop environment. The various components in the
figure are as follows:
Web Clients
Web clients, such as browsers, are programs that provide a graphical user interface
(GUI) to web servers such as the iTP Secure WebServer.
TCP/IP Subsystem
The HP NonStop TCP/IP subsystem allows processes on a NonStop System to
communicate using the TCP/IP protocol. There are three versions of TCP/IP support
available; conventional, Parallel Library, and TCP/IPv6.