MACROMEDIA COLDFUSION 5 - INSTALING AND CONFIGURING SERVER, Manual

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140 Appendix Preparing Your Server for ClusterCATS
Using ClusterCATS dynamic IP addressing
The ClusterCATS software can be configured to dynamically enable the IP
address(es), associated with a Web site(s), while it is running. While the ClusterCATS
software is stopped on the local system, the IP address will not be enabled on that
system but might migrate to another server participating in the same cluster where
IP address fail-over support has been installed.
This addressing scheme also involves a static maintenance address for each server
that allows you and ClusterCATS to contact that server at any time, even during a
Web server failure.
The setup for ClusterCATS dynamic IP addressing varies depending on your cluster’s
operating system:
•
Windows On Windows systems, if your IP address for the local system is the
same as the IP of your Web server, setting up your site for ClusterCATS dynamic
IP addressing can involve reinstalling your Web server software and resetting
your TCP/IP settings. You must carefully consider your system configuration
before installing ClusterCATS. For more information, see Advanced ColdFusion
Administration.
•
UNIX You do not need to configure a UNIX system for dynamic IP addressing
because it is set up by default if you select it during installation.
Enabling the STREAMS protocol (Windows NT only)
The ClusterCATS IP address fail-over subsystem requires that the Streams
Environment be installed so that Address Resolution Protocol (ARP) messages can be
transmitted.
Note
You must add the STREAMS Environment to the network protocols in Windows NT
4.0 systems before installing ClusterCATS for ColdFusion. The ClusterCATS
installation procedure automatically configures STREAMS for Windows 2000
systems.
To add the STREAMS Environment to Windows NT:
1 Select Start > Settings > Control Panel.
2 Open the Network icon.
install.book Page 140 Thursday, May 10, 2001 12:59 PM