Technical References

Specifies the UDP port number that the DNS server uses to send
notify requests to other servers.
A value of zero indicates that the server should choose a random
port. If this attribute is unset, then queries are sent from
the port used to listen for queries (See the local-port-num
attribute).
notify-wait rangetime(0-68y5w3h14m7s) default = 5s
With the notify attribute enabled, and after an initial zone
change, sets the period of time for the DNS server to wait
before it sends change notification to other name servers.
Default is 5s.
This property allows you to accumulate multiple changes,
and thus limit the number of times the serial number advances.
persist-mem-cache bool default = true
Specifies whether the DNS server writes memory chache, or reads
it from the persistent cache database.
If you set this to false, DNS does not use the persistent cache
database.
query-source-address ipaddr
Specifies the source IP address from which the DNS server will
send queries to other servers when resolving names for clients. A
value of 0.0.0.0 indicates that OS will use the best local address
based on the destination.
query-source-port rangeint(0-65535) default = 0
Specifies the starting UDP port number for the pool of sockets
that the DNS server uses to send queries to other servers when
resolving names for clients. A value of zero instructs the
server to use a pool consisting of random ports. Any other value
will create a pool using up to 4096 sequential ports starting with
query-source-port. Any ports in this range that need to be excluded
from the port pool should be defined in the
query-source-port-exclusion-list. Because ports in this range will
not be used the total number of ports in the pool may be fewer than
4096.
query-source-port-exclusion-list shortpair
Specifies a list of port ranges excluded from
the query port pool.
remote-port-num rangeint(1-65535) default = 53
Specifies the UDP and TCP port number the DNS server
uses to send queries to other servers. Default is port 53.
request-expiration-time rangetime(10s-5m) default = 30s