.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man v6.0.2 (Pod::Simple 3.45)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
.ie n \{\
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Required to disable full justification in groff 1.23.0.
.if n .ds AD l
.\" ========================================================================
.\"
.IX Title "GDNSD-PLUGIN-NULL 8"
.TH GDNSD-PLUGIN-NULL 8 2026-04-04 "gdnsd 3.8.3" gdnsd
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
gdnsd\-plugin\-null \- gdnsd null plugin
.SH SYNOPSIS
.IX Header "SYNOPSIS"
Example null service_types config:
.PP
.Vb 6
\&  service_types => {
\&    my_null_mon => {
\&      plugin => null,
\&      # ... other generic service_type params
\&    }
\&  }
.Ve
.PP
Zonefile RRs using null resolution
.PP
.Vb 2
\&  foo 300 DYNA null
\&  bar 300 DYNC null!whatever
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBgdnsd\-plugin\-null\fR exists mostly as an example of the minimum
possible plugin of both types.  It is simultaneously both a
monitoring plugin and a resolution plugin.
.PP
When used as a resolution plugin in \f(CW\*(C`DNYA\*(C'\fR or \f(CW\*(C`DYNC\*(C'\fR RRs, it
ignores any resource name provided.  It always returns the IPv4 address
\&\f(CW0.0.0.0\fR and the IPv6 address \f(CW\*(C`::\*(C'\fR.
.PP
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 \f(CW\*(C`DOWN\*(C'\fR result at every monitoring check interval without
actually checking anything.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBgdnsd.config\fR\|(5), \fBgdnsd.zonefile\fR\|(5), \fBgdnsd\fR\|(8)
.PP
The gdnsd manual.
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (c) 2014 Brandon L Black <blblack@gmail.com>
.PP
This file is part of gdnsd.
.PP
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.
.PP
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.
.PP
You should have received a copy of the GNU General Public License
along with gdnsd.  If not, see
<http://www.gnu.org/licenses/>.