Installation manual

Understanding the combined model
Host On-Demand supports a combined model where the host session information
is defined in the configuration server using the administration utility. In the
combined model you use the Deployment Wizard to create an HTML file that
points to the host session information stored in the configuration server. Users do
not see a logon panel, and if you allow users to save changes to the host session
configuration information, their preferences are stored on the local file system
where the browser is running.
Other deployment considerations
If you use the configuration server and it is separated from your Web browser by a
firewall, you will either need to open up the configuration server port on the
firewall or run the Host On-Demand configuration servlet. The configuration
servlet allows the browser to communicate with the configuration server across
standard Web protocols, such as HTTP or HTTPS. See Flow B in the preceding
diagram.
If you deploy the cached client to the Internet, consider that your users might use
Host On-Demand with other business partners running Host On-Demand servers
at different service levels. This could be a problem if your user needs different
functions when accessing servers at different service levels. Components of
different service levels are not supported within a single cached client, and there
can be only one cached client on a machine. Host On-Demand Version 5.0.4 or
higher is required to run the cached client across the Internet.
To prevent complications, you can do some or all of the following:
v Select all the functions a user needs (across all sites the user accesses) in a
preload list when you create an HTML page using the Deployment Wizard
v Use the disable function of the Deployment Wizard to disable all functions not
in the preload list and the functions that are not needed for your users
v Create separate HTML pages for different user groups
v Give your HTML pages a name that identifies your company
v Always install Screen Customizer to prevent users who are accessing your server
from losing Screen Customizer functions when accessing other sites
For information about deploying cached clients to the Internet, see Cached client
support across the Internet .
Before installing Host On-Demand
Below are some general software requirements and information to help you make
configuration decisions before installing Host On-Demand. Check the installation
section in this Getting Started guide for specific software requirements for your
operating system; read the readme for late breaking information; and read the
Basic Configuration Steps for more detailed information about configuring Host
On-Demand after installation.
Install a JDK or JVM (on non-Windows platforms), a Web server and, optionally,
a servlet engine
Use the installation section in this guide for supported JDK and JVM,
browser, Web server and servlet engine levels, as well as required disk
space.
Determine directory structure for Host On-Demand installation
The installation instructions, and automated installations, assume a certain
8 Getting Started: Host On-Demand Version 6.0: Getting Started