Installation manual

directory structure. In most cases these defaults should work fine. Review
the directory structure in the installation section in this guide before
installing. If you change the default directory structure, keep your changes
in mind when following the installation instructions.
Select the Service Manager port
The default Service Manager port is 8999. If you want to change this value
because it is already in use, you may change it during installation for
Windows NT, Windows 2000, and AIX. The port may also be changed after
installation on all platforms.
Choose to use the configuration servlet
During the Windows NT, Windows 2000, and graphical AIX installations, if
the installation program detects a supported application server, you are
given the option to use the configuration servlet. The configuration servlet
allows client applets to communicate with the configuration server through
a firewall without opening any additional ports on the firewall. The
configuration servlet can be installed manually on the other operating
systems, and for web and application servers that are not recognized by
the installation program. See installing the configuration servlet in this
guide for more information.
Decide what security levels to set
You can configure your Web server to use SSL (HTTPS), so that the data
stream from your Web server to your browser is encrypted. See your Web
server documentation for more information about configuring your Web
server for SSL. Once the client is loaded in a browser, however, it
communicates directly with the host. You may be able to configure Host
On-Demand to provide SSL security to your host sessions.
v If the Telnet server supports SSL, the clients can be configured to also
use SSL. See your Telnet server’s documentation for more information
about configuring SSL on the Telnet server, and see security in the Host
On-Demand online help for more information about configuring a client
to connect to a secure Telnet server.
v If your Telnet server does not support SSL, and you are running Host
On-Demand on Windows NT or AIX, you can configure the Host
On-Demand Redirector to provide SSL support. The Redirector acts as a
transparent proxy between the client and the Telnet server by using port
remapping. It can encrypt data between the client and itself, between
itself and the host, or both between the client and itself and between
itself and the host. See adding a host to the Redirector in the Host
On-Demand online help for more information.
v If you want session configuration information to be encrypted, you can
configure sessions to use the configuration servlet over HTTPS (after
configuring your Web server for SSL) instead of communicating directly
with the Service Manager. See installing the configuration servlet in this
guide for more information about installing the configuration servlet,
and see configuring the configuration servlet in the Host On-Demand
online help for more information about configuring clients to use the
configuration servlet.
Install and configure Host On-Demand
Follow the installation instructions in this guide to install Host
On-Demand 6.0, then see Basic Configuration Steps in the Host
On-Demand online help for more detailed information about configuring
Host On-Demand so users can access host sessions.
Chapter 2. Planning for Host On-Demand 9