User’s guide – Dell Managed PDU LED User Manual
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USER’S GUIDE
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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 the secondary DNS server (if a secondary DNS server is specified). If the Rack
PDU does not receive a response within that time, e-mail cannot be sent.
Therefore, use DNS servers on the same segment as the Rack PDU or on a
nearby segment (but not across a wide-area network [WAN]).
– After you define the IP addresses of the DNS servers, verify that DNS is working
correctly by entering the DNS name of a computer on your network to look up the
IP address for that computer.
•
Host Name
: After you configure a host name here and a domain name in the
Domain Name
field, users can enter a host name in any field in the Rack PDU
interface (except e-mail addresses) that accepts a domain name.
•
Domain Name (IPv4)
: You need to configure the domain name here only. In all other
fields in the Rack PDU interface (except e-mail addresses) that accept domain
names, the Rack PDU 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 (for example, when
defining a trap receiver), include a trailing period. The Rack PDU 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: