iTP Secure WebServer System Administrators Guide (Version 7.5+)

Active Transaction Pages (ATP)
Active Transaction Pages (ATP) provides a server-side JavaScript environment for HP NonStop
Systems. You can use ATP objects to provide Web-based interfaces to existing NonStop TS/MP,
NonStop TUXEDO, NonStop SQL/MP, and sockets applications.
For further information, see the iTP Active Transaction Pages (iTP ATP) Programmer's Guide.
NOTE: The iTP Secure WebServer does not support Microsoft Active Server Pages or ADO.
Pathway CGI Server
The Pathway CGI extensions are a set of utility procedures that let you develop CGI applications
as NonStop TS/MP server classes or integrate existing NonStop TS/MP applications into the iTP
Secure WebServer environment.
Generic Common Gateway Interface (CGI) Server
CGI is a standard for applications that interface with Web servers. CGI applications can be written
in a variety of computer languages (or scripts) including C, Korn Shell, and others. The iTP Secure
WebServer provides a generic CGI interface that fully conforms to the NCSA CGI/1.1 standard.
For more information, see “Using Common Gateway Interface (CGI) Programs” (page 138).
Servlet Server Class (SSC)
The Servlet Server Class (SSC), also known as the Web Container, enables you to write CGI
applications as Java servlets. The servlets execute in SSC processes, which are scalable and
persistent because they run under NonStop TS/MP.
Resource Locator Service (RLS)
RLS enables you to implement replicated Web servers, to be used interchangeably and transparently
for access to the same content and services. The Web servers run on the same or different platforms;
RLS chooses the best-performing server to satisfy each request.
iTP Secure WebServer Admin httpd
The admin httpd process provides the interface between your Web client and the iTP Secure
WebServer Administration Server. It is the same program as the iTP Secure WebServer httpd but
runs in the iTP Secure WebServer Administration PATHMON environment.
Administration Server
The Administration Server enables you to establish and modify configurations, and control and
monitor one or more iTP Secure WebServer environments, from a Web client.
iTP Secure WebServer Encryption
The iTP Secure WebServer uses the following types of encryption:
• Transport Layer Security (TLS)
• Secure Socket Layer (SSL)
Because the iTP Secure WebServer is compliant with the TLS 1.0, TLS 1.1, TLS 1.2 and SSL 3.0
standards, you do not have any additional software or hardware to use the TLS and SSL encryption.
The TLS and SSL protocols enable a Web client and server to authenticate each other and enable
both partners to protect exchanged data using private encryption keys that are used for a single
session, and then discarded. A Web client or server can be authenticated only by presenting a
certificate obtained from a recognized Certificate Authority (CA).
32 Introduction to the iTP Secure WebServer