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HP Open Source Web Server Middleware Stack
The following components comprise the HP OSMS Web Server Middleware Stack:
Apache Web Server The Apache Web Server is a mature open source web server that has
become the de facto standard because of its high adoption rate on
the Internet.
Apache Tomcat
Apache Tomcat (or Tomcat) is a J2EE servlet and Java™ Server Pages
(JSP) engine for developing and deploying web applications. It also
includes other features, such as an embedded web server.
Hibernate Hibernate is an object/relational persistence and query service for
Java. Hibernate provides support for collections and object relations,
and composite types. In addition to persisting objects, Hibernate
provides a rich query language to retrieve objects from the database,
and an efficient caching layer and Java Management Extensions (JMX)
support. User-defined data types and composite primary keys give
additional flexibility to support legacy applications.
mod_jk
The mod_jk module is commonly used to allow Tomcat to handle
Java Servlet and JSP requests while Apache httpd handles requests
for static and dynamic contents implemented in PHP, Perl, or Python.
mod_ssl
The mod_ssl module provides a Secure Sockets Layer (SSL) and
Transport Layer Security (TLS) implementation that allows web
applications running within the Apache Web Server to communicate
securely with their respective clients. Communication can still occur
over standard HTTP while running mod_ssl.
Perl Perl (Practical Extraction and Report Language) has long been a
popular text-processing language. Recently, Perl has become popular
for the development and deployment of web applications.
PHP PHP is a scripting language that can be embedded in HTML pages,
allowing developers to add more dynamic contents to their web
applications. A large portion of the PHP syntax is similar to C and
Java.
Python Python is an object-oriented language that has a clean, straightforward
syntax. Python can be extended to exploit facilities implemented in
other programming languages, such as C and C++.
JDK The Java Platform Standard Edition Development Kit (JDK) is a
development platform for building Java-based applications and
components.
Web Server Stack Architecture
This section provides architecture, configuration, and the software environment for a web server
stack. Figure 1 shows the logical architecture of the stack.
HP Open Source Web Server Middleware Stack 11