
478 Chapter 10 Configuring system settings
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retransmit <interval>
Sets the interval for retransmitting a DNS query.
•
interval is a positive integer that indicates the
time interval in seconds (
s), minutes (m), or hours
(
h). If you do not specify a measurement unit,
seconds is assumed. The default is 2 (2 seconds).
count <count>
Specifies the number of retries.
•
count is a non-negative integer that indicates the
maximum number of times a DNS query is
retransmitted. The default is 3.
ttl <ttl>
Specifies the maximum time to live (TTL) value for
entries in the DNS cache. After the TTL has expired,
the entries are discarded.
•
ttl is a non-negative integer that indicates the
TTL value in seconds (s), minutes (
m), hours (h), or
days (d). You can enter compound values (for
example, 2h30m). If you do not specify a
measurement unit, seconds is assumed. The
default is 3h (3 hours).
health <interval>
Sets the interval for the Nortel SNAS 4050 to check the
health of the DNS servers. At the specified interval, the
Nortel SNAS 4050 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), or hours (h). 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 4050 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 4050
determines the DNS server is up. The default is 2.
/cfg/sys/dns
followed by:
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