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Configuring the cluster 277
/cfg/sys/dns
followed by:
health <interval> Sets the interval for the Nortel SNAS to check
the health of the DNS servers. At the specified
interval, the Nortel SNAS performs a DNS
query to each DNS server in the system
configuration to determine its health status.
•
interval is an integer that indicates the
time interval in seconds (s), minutes (m),
hours (h), or days (d). If you do not specify
a measurement unit, seconds is assumed.
The default is 10 (10 seconds).
hdown <count> Sets the health check down counter.
• count is a positive integer that indicates
the number of times a DNS server health
check can time out before the Nortel SNAS
determines the DNS server is down. The
default is 2.
hup <count> Sets the health check up counter.
•
count is a positive integer that indicates
the number of times a DNS server health
check returns a positive response before
the Nortel SNAS determines the DNS
server is up. The default is 2.
Managing DNS servers
You can add up to three DNS servers to the system configuration. The
DNS server is used by the captive portal when it forwards queries on
the Exclude List. (For more information about the captive portal and the
Exclude List, see “Captive portal and Exclude List” (page 228).)
To configure the cluster to use external DNS servers, use the following
command:
/cfg/sys/dns/servers
The DNS Servers menu appears.
The DNS Servers menu includes the following options:
Nortel Secure Network Access Switch
Using the Command Line Interface
NN47230-100 03.01 Standard
28 July 2008
Copyright © 2007, 2008 Nortel Networks
.