APC AP7900 Manual Do Utilizador

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®
USER’S GUIDE
Switched Rack PDU
76
On Retry Failure
: Defines what TCP/IP settings will be used by the 
Rack PDU when it fails to discover a BOOTP server (
Use Prior 
Settings
, by default).
DNS
Configure Domain Name System Settings fields. 
Use these fields to 
define the IP addresses of the primary and secondary Domain Name 
System (DNS) servers used by the Switched Rack PDU e-mail feature.
Send DNS Query (Web interface). 
Use this option, available only 
through the 
DNS
 menu in the Web interface, to send a DNS query that tests 
the setup of your DNS servers.
Use the following settings to define the parameters for the test DNS 
request; you view the result of the test DNS request in the 
Last Query 
Response
 field (which displays 
No last query
 or text describing the query 
result of the last test).
• Use the 
Query Type
 setting to select the method to use for the DNS 
query:
– The URL name of the server (
Host
)
– The IP address of the server (
IP
)
– The fully qualified domain name (
FQDN
)
– The Mail Exchange used by the server (
MX
)
• Use the 
Query Question
 text field to identify the value to be used for 
the selected 
Query Type
For information about the 
Advanced
 settings (
DHCP Cookie Is
 
and 
Retry Then Stop
) that directly affect how DHCP is used, see 
.
 and