3.4.0 Matrix Server Administration Guide

Chapter 12: Configure Service Monitors 140

Monitor Type: Select the type of service that you want to monitor.

Timeout: The maximum amount of time that the monitor_agent process

will wait for a probe to complete. For most monitors, the default timeout

interval is five seconds. You can use the default setting or specify a new

timeout interval.

Frequency: The interval of time, in seconds, at which the monitor probes

the designated service. You can use the default setting, typically 30

seconds, or enter a new frequency interval.

Additional parameters: If you are configuring a DNS, HTTP, HTTPS,

NTSERVICE, or CUSTOM monitor, you will be asked for an additional

parameter.

• DNS monitor. Specify the IP address to be resolved. (The monitor

performs reverse lookup.)

• HTTP and HTTPS monitors. Specify the URL for the service. (For the

HTTPS monitor, the URL should begin with HTTPS.) When the

monitor performs its probe operation, it will attempt to retrieve the

URL from the server, giving a higher level of assurance that the service

is functioning correctly. If you do not specify a URL, the probe

operation will connect to httpd and wait for a response. If httpd

responds, the monitor assumes that the service is operating correctly.

• NTSERVICE monitor. Specify whether you want services dependent

on the monitored NT service to also be started when the NT service is

started (specify either Yes or No). If you want the services to be

started, you can also specify the number of attempts that should be

made. Use a semicolon to separate the values (for example, Yes;3).

•

CUSTOM monitor. Type the pathname for the probe script to be used

with the monitor.

When you complete the Add Service Monitor form, the new monitor

appears on the Management Console. In this example, the service

monitor is active on server owl, which provides the active network

interface for the virtual host.