pnotify - A simple, portable Perl script for sending DNS NOTIFY packets with TSIG support.

pnotfy [options]

Options:

    --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

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 query for _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.

• Net::DNS
• Getopt::Long
• Pod::Usage

Copyright 2011 CentralNic Ltd. This program is Free Software, you can use it and/or modify it under the same terms as Perl itself.

• Net::DNS
• https://www.centralnic.com/