Monitoring
Machines and Servers
This
screenshot shows two different ways of viewing the same information. You may
want to know which servers are on a particular machine, and which machine is
associated with a server. The Administration Console provides two different
ways to perform the same task. The top display is from the Machine list and the
bottom display is from the Server list.
A
Node Manager must run on each computer hosting the Oracle WebLogic Server
instances that you want to control with a Node Manager. Configure each computer
as a machine in Oracle WebLogic Server, and assign each server instance that
you want to control with a Node Manager to the machine on which it runs.
Configuring
a Machine to Use a Node Manager
An
Oracle WebLogic Server machine resource associates a particular machine with
the server instances that it hosts and specifies the connection attributes for
the Node Manager process on that system.
Configure
a machine definition for each machine that runs a Node Manager process by using
the Machines > Configuration > Node Manager page in the Administration
Console. Enter the DNS name or IP address on which the Node Manager listens in
the Listen Address field.
You
enter localhost in
the Listen Address field only if the administration and managed servers are on
the same computer. You would most likely replace localhost
with a real DNS name, such as mywls.example.com
(in case the IP address changes), or a real address, such as 192.168.0.1.
