34
Chapter 3 Installing ClusterCATS
Before you install
Before installing ClusterCATS and creating server clusters, you must perform the
following pre-installation tasks:
•
“Upgrading from a previous version of ClusterCATS” on page 34
•
“Configuring DNS servers” on page 34
•
“Configuring server failover” on page 38
•
“Using ClusterCATS dynamic IP addressing” on page 38
•
“Configuring firewalls” on page 38
•
“Analyzing web server content” on page 39
•
“Considering domain controllers (Windows NT only)” on page 40
Upgrading from a previous version of ClusterCATS
To update the ClusterCATS application while preserving your configuration settings,
re-install ClusterCATS using the instructions in this chapter. The ClusterCATS
installation detects that a configuration is available for use and prompts you by asking
whether you want to use the configuration in the new installation. You can use the
ClusterCATS Server setup options, or keep the existing cluster configurations.
Configuring DNS servers
ClusterCATS software requires that both the forward lookup (host name-to-address
translation) and reverse lookup (address-to-host name translation) be registered with
your DNS server. For evaluation purposes, you can use host files, but this is not
recommended in a production environment.
Note:
ClusterCATS does not support Dynamic Host Configuration Protocol (DHCP). A
unique IP address must be assigned to each web server.
This section addresses the following topics:
•
“Understanding DNS servers” on page 34
•
“Configuring your primary DNS server” on page 36
Understanding DNS servers
When you enter a URL into a web browser, the browser is able to locate the website you
want to visit because of the name-to-IP address translation that the Internet Domain
Name System (DNS) performs. This section reviews two important components of the
DNS infrastructure that enable this capability — primary DNS servers and local DNS
servers.
Primary DNS servers
The primary DNS server provides the final mapping of a website name to the computer
on which a website resides. The primary DNS server can be located anywhere on the
Internet, but most reside either in the same physical location as the web servers or at the
ISP that provides the connection between the web servers and the Internet.
Summary of Contents for COLDFUSION MX-CLUSTERCATS
Page 1: ...macromedia Using ClusterCATS...
Page 56: ...46 Chapter 3 Installing ClusterCATS...
Page 118: ...108 Chapter 4 Configuring Clusters...
Page 156: ...146 Index...
