User`s guide

USER’S GUIDE

AUTOMATIC TRANSFER SWITCH

•Use the Query Question text field to identify the value to be used for the

selected Query Type:

–For Host, identify the URL

–For IP, identify the IP address

–For FQDN, identify the fully qualified domain name, formatted as

myserver.mydomain.com

–For MX, identify the Mail Exchange address

• Enable or disable Reverse DNS Lookup, which is disabled by default.

Enable this feature unless you do not have a DNS server configured or

have poor network performance because of heavy network traffic. With

Reverse DNS Lookup enabled, when a network-related event occurs,

reverse DNS lookup logs in the event log both the IP address and the

domain name for the networked device associated with the event. If the

device does not have a domain name entry, only its IP address is logged

with the event. Since domain names generally change much less

frequently than IP addresses, enabling reverse DNS lookup can improve

the ability to identify addresses of networked devices that are causing

events to occur.

Ping utility (control console)

Select this option, available only in the control console, to check the

network connection by testing whether a defined IP address or domain

name responds to the Ping network utility.

By default, the IP address of the default gateway is used. However, you can

use the IP address or domain name of any device known to be running on the

network.