Cisco Cisco Prime Network Registrar 8.1 テクニカルリファレンス
DNS Deployment Callout
Cisco Prime Network Registrar IPAM 8.1.1 CLI and API Guide
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The DNS Listener can use a properties file to set certain operational properties. The
properties are:
listener.port
The port on which the listener should listen for NOTIFY
messages from a DNS server. The default is 5053 if this
property is not supplied.
Note: For the listener to listen on port 53 on *NIX, you
must run dl_start as root.
listener.notifythreshold
The number of NOTIFY messages received before the
listener attempts an IXFR transfer from the DNS server.
The default is one NOTIFY message.
listener.maxrecords High water mark that controls NOTIFY message
processing. If more than
listener.maxrecords
is
accepted by the listener via an IXFR further IXFR
requests will not be initiated until all records have been
processed by the queue processing thread. This helps
limit the amount of memory the listener can claim at any
one time. The default is 1000 records.
DNS Deployment Callout
When a DNS File-based deployment task is performed and the configuration and data
files are placed on the DNS Server, the Cisco Prime Network Registrar IPAM Agent has
the ability to execute a callout script. The details of this script are as follows:
• The script is called by the remote agent, that is, the one that resides on the actual
DNS server.
• The name of the script is not configurable. It is always
$INCHOME/etc/dns_callout.sh (or %INCHOME%\etc\dns_callout.cmd for
Windows).
• The script gets called just before we attempt to Restart the server (on a DNS
Config - All Files push
) or call
rndc
(for Selected/Changed Zone File-
based pushes).
• The script gets passed one parameter which is the full path name of the new
named.conf file.
• The agent will wait for the completion of script before moving on, but only for at
most 60 seconds.
• The agent will report the return code of the script in the task result messages,
however it does not interrogate this return value and thus will always continue
even if the script fails.