User`s guide

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USER’S GUIDE
Network Management Card
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DNS (Administration>Network>DNS>options)
Use the options under DNS on the left navigation menu to configure and test the
Domain Name System (DNS):
• Select servers to specify the IP addresses of the primary and optional secondary
DNS server. For the Management Card to send e-mail, at least the IP
address of the
primary DNS server must be defined.
– The Network Management Card 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 Management Card does not receive a response within that time,
e-mail cannot be sent. Therefore, use DNS servers on the same segment as the
Management Card 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.
• Select naming to define the host name and domain name of the Management Card:
– 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 Management
Card interface (except e-mail addresses) that accepts a domain name.
– Domain Name: You need to configure the domain name here only. In all other
fields in the Network Management Card interface (except e-mail addresses) that
accept domain names, the Network Management Card 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 (or example, when
defining a trap receiver) include a trailing period. The Management Card
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.