NonStop Servlets for JavaServer Pages (NSJSP) 6.0 System Administrator's Guide

Configuring NSJSP

NonStop Servlets for JavaServer Pages (NSJSP) 6.0 System Administrator’s Guide—544548-004

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Configuring Virtual Hosting

The Virtual Hosting feature enables you to access web services on multiple IP

addresses or hostnames through a single iTP WebServer or NSJSP environment.

Each virtual host can have its own servlet context or a set of servlet contexts. Servlet

contexts cannot be shared across virtual hosts.

In the server.xml file, the <Host> element represents a virtual host. One or more

<Host> elements are nested inside an <Engine> element. Exactly one of the Hosts

associated with each <Engine> must have a name matching the defaultHost

attribute of that <Engine>. Any context associated with a virtual host can be defined in

the directory NSJSP_HOME/conf/NSJSP/<host-name>/.

The <Host> element attributes are described in detail in the Apache Tomcat

documentation at http://tomcat.apache.org/tomcat-6.0-doc/virtual-hosting-howto.html.

Example 3-8 provides an example of the elements you need to set in the server.xml

file to configure Virtual Hosting.

Configuring Realms

NSJSP 6.0 allows the use of Realms, a database of user names and passwords that

identify valid users of a web application (or a set of web applications) with a list of the

roles associated with each valid user. Roles are similar to ‘groups’ in the Unix-like

operating systems because access to specific web application resources is granted to

all users possessing a particular role (rather than the list of associated user names). A

particular user can have any number of roles associated with that particular user name.

The following storage types can be used to access the Realm database:

Example 3-8. Configuring Virtual Hosting

<Host name="www.hp.com" appBase="webapps"

unpackWARs="true">

...

</Host>

...

<Host name="nonstop.hp.com" appBase="nsk_webapps"

unpackWARs="true">

<Alias>nonstop.compaq.com</Alias>

<Alias>www.tandem.com</Alias>

...

</Host>