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You  can get  extra information  about  the services  you have  installed  by going  to  the Administrative  Tools

icon of the Control Panel. Here you will see a Services icon which you can open. The Services dialog

that  opens  will  show  the  services  that  have  been  installed  on  your  machine,  you  should  see  one  for  Tomcat.  The

dialog will tell you if the service has started or not and will tell you how it is launched. Typically the installer makes

it an Automatic startup type which causes it to launch when the computer is booted. Clicking on the Tomcat entry

and selecting Properties will give you a dialog that allows you to configure the service. 

Running  Tomcat  as  a  service  works  well  if  the  JDK  is  1.4.  The  JDK  is  found  by  searching  for  java.exe  on  the

Windows path so you need to make sure that the JDK you installed earlier is found.

2.6.3 Web Server Connections

In  some  configurations,  the  main  accessible  server  is  a  regular  web  server  such  as  the  Apache  HTTP  server,  the

Microsoft  Internet  Information  Server,  or  the  Netscape  Enterprise  Server.  It  is  possible  to  use  such  a  server  in

conjunction  with  a  servlet  container.  This  type  of  configuration  is  more  complicated,  but  can  take  advantage  of

many additional  features, for example,  authentication  and URL rewriting, and is often suitable for an existing  web

infrastructure.  This  section  gives  a brief  description  of configuration  for  some typical arrangements.  It  is probably

useful to configure your servlet container to work in a stand alone mode before starting any of this work. 

If you wish to use webMathematica in conjunction with a separate web server, you will need to make sure that all

requests  to  webMathematica  are  forwarded  to  the  webMathematica  web  application.  This  will  make  sure  that

requests  for  applet  archives,  HTML  pages,  and  images  are  properly  processed.  If  the  server  is  only  set  to  allow

access to servlets, then these other resources will not be accessible.

If you just wish to test webMathematica running directly through a servlet container such as Tomcat, you may skip

this section.

Apache and Tomcat

There are a number of ways for the Apache web server to communicate with Tomcat. One convenient way is to use

an HTTP forwarding mechanism to send requests from the Apache web server to Tomcat. This can be arranged with

the ProxyPass  configuration directive.  A sample configuration, that could be added to the Apache configuration

file (typically called httpd.conf), is shown below.

    Order allow,deny

    deny from all

  ProxyPass /webMathematica http://tomcatserver:8080/webMathematica

  ProxyPassReverse /webMathematica 

http://tomcatserver:8080/webMathematica

The  ProxyPass  directive  provides  a  mapping  from  a  path  to  an  external  URL,  and  the  ProxyPassReverse

directive causes the responses to be modified so that the proxy is transparent. Any access to /webMathematica

will be sent to port 8080 on the machine tomcatserver. The configuration also denies access to the KernelMon 

itor via the proxy, the features of the KernelMonitor are described in a 

later section

.

For the ProxyPass directive to be effective the modules mod_proxy and mod_proxy_http must be loaded,

this can be done with the following configuration information in the Apache configuration file.

 .