pnotify - A simple, portable Perl script for sending DNS NOTIFY packets with TSIG support.
--zone=ZONE The DNS zone --class=CLASS The class (default IN) --server=HOST Host to send the packet to, OR --srv=DOMAIN FQDN to use to construct _dns._udp SRV query to determine which servers to send the NOTIFY to --port=PORT Destination port to send the packet to (default 53) --timeout=TIMEOUT Timeout in seconds (default 1) --tsig-name=NAME Optional TSIG name --tsig-key=KEY Optional TSIG KEY (only HMAC-MD5 is supported) --source=ADDR Use this source address (optional) --help Show this help
SENDING MULTIPLE PACKETS
You can send a NOTIFY to a single host using the --server argument. If you provide a value for the --server argumnet, then pnotify will perform a SRV lookup and retrieve a list of servers, and send a packet to each.
For example: if you used
--srv=example.com, pnotify will perform a SRV
_dns._udp.example.com. A NOTIFY packet will then be sent to
each host in the response to the SRV query.
pnotify will print the rcode of the response from each server or "TIMEOUT" to STDOUT.
The exit code will be equal to the number of errors observed.
It is sometimes useful to be able to manually send a NOTIFY packet to a DNS server. There are other tools to do this (eg nsd-notify(8)) but they are not as portable as pnotify, which is a pure Perl script with only a limited range of prerequisites.
Copyright 2011 CentralNic Ltd. This program is Free Software, you can use it and/or modify it under the same terms as Perl itself.