iTP Secure WebServer System Administrators Guide (Version 7.5+)

Figure 1 iTP Secure WebServer Architecture
PATHMON
Log Files
Distributor
Process
Administration
Server
PATHMON
Environment
iTP Secure WebServer
PATHMON Environment
Active
Transaction Pages
Pathway
CGI Applications
Generic
CGI Servers
CGI
Applications
Admin Servers
TCP/IP
Subsystem
Servlet
Server Class
Resource
Locator Service
Web Client Web Client Web Client
iTP Secure
WebServer
httpd Server Class
PATHMON
iTP Secure
WebServer
Admin
httpd Server Class
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 enables processes on a NonStop System to communicate using
the TCP/IP protocol. There are three versions of TCP/IP support available: conventional TCP/IP,
TCP/IPv6, and IP CLIM.
Conventional TCP/IP
Conventional TCP/IP has one listening process on each port. The conventional TCP/IP connections
are managed by the Distributor process. The Distributor receives all incoming requests for new
connections from the TCP/IP processes and used to previously distribute them to the iTP Secure
WebServer, using the NonStop TS/MP Pathsend facility. Beginning iTP WebServer 4.1, the
Pathsend facility were removed.
30 Introduction to the iTP Secure WebServer