APC AP8868 User's Guide Page 70

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62Metered Rack PDU User Guide
DNS
Path: Administration > Network > DNS > options
Use the options under DNS to configure and test the Domain Name System (DNS):
Select
Primary DNS Server or Secondary DNS Server to specify the IPv4 or IPv6 addresses of the
primary and optional secondary DNS server. For the Rack PDU to send e-mail, you must at least
define the IP
address of the primary DNS server.
The Rack PDU waits up to 15 seconds for a response from the primary DNS server or
secondary DNS server (if specified). If the Rack PDU does not receive a response within that
time, e-mail cannot be sent. Use DNS servers on the same segment as the Rack PDU or on a
nearby segment (but not across a wide-area network [WAN]).
Define the IP addresses of the DNS servers then enter the DNS name of a computer on your
network to look up the IP address for that computer to verify correct operation.
Host Name: Configure a host name here and a domain name in the Domain Name field then
users can enter a host name in any field in the NMC interface (except e-mail addresses) that
accepts a domain name.
Domain Name (IPv4): Configure the domain name here only. In all other fields in the NMC
interface (except e-mail addresses) that accept domain names, the NMC adds this domain name
when only a host name is entered.
To override all instances of the expansion of a specified host name by the addition of the
domain name, set the domain name field to its default, somedomain.com, or to 0.0.0.0.
To override the expansion of a specific host name entry, include a trailing period. The NMC
recognizes a host name with a trailing period (such as mySnmpServer.) as if it were a fully-
qualified domain name and does not append the domain name.
Domain Name (IPv6): Specify the IPv6 domain name here.
Select
test to send a DNS query that tests the setup of your DNS servers:
– As Query Type, select the method to use for the DNS query:
by Host: the URL name of the server
by FQDN: the fully-qualified domain name
by IP: the IP address of the server
by MX: the Mail Exchange used by the server
– As Query Question, identify the value to be used for the selected query type:
View the result of the test DNS request in the Last Query Response field.
Query Type Selected Query Question to Use
by Host The URL
by FQDN The fully qualified domain name, my_server.my_domain
by IP The IP address
by MX The Mail Exchange address
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