gdnsd-plugin-null - gdnsd null plugin

       Copyright (c) 2014 Brandon L Black <blblack@gmail.com>

       This file is part of gdnsd.

       gdnsd is free software: you can redistribute it and/or modify it under the terms of the GNU General
       Public License as published by the Free Software Foundation, either version 3 of the License, or (at your
       option) any later version.

       gdnsd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
       implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
       License for more details.

       You should have received a copy of the GNU General Public License along with gdnsd.  If not, see
       <http://www.gnu.org/licenses/>.

gdnsd 3.8.3                                        2025-02-16                               GDNSD-PLUGIN-NULL(8)

gdnsd-plugin-null exists mostly as an example of the minimum possible plugin of both types.  It is
       simultaneously both a monitoring plugin and a resolution plugin.

       When used as a resolution plugin in "DNYA" or "DYNC" RRs, it ignores any resource name provided.  It
       always returns the IPv4 address 0.0.0.0 and the IPv6 address "::".

       When used as a monitoring plugin by defining a service_type as shown in the example above it emulates the
       behavior of a real monitoring plugin (updating at correct intervals, etc) but sends a "DOWN" result at
       every monitoring check interval without actually checking anything.

       gdnsd-plugin-null - gdnsd null plugin

gdnsd.config(5), gdnsd.zonefile(5), gdnsd(8)

       The gdnsd manual.

       Example null service_types config:

         service_types => {
           my_null_mon => {
             plugin => null,
             # ... other generic service_type params
           }
         }

       Zonefile RRs using null resolution

         foo 300 DYNA null
         bar 300 DYNC null!whatever