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.TH "KNOTD" "8" "2026-01-16" "3.5.3" "Knot DNS"
.SH NAME
knotd \- Knot DNS server daemon
.SH SYNOPSIS
.sp
\fBknotd\fP [\fIconfig_option\fP] [\fIoptions\fP]
.SH DESCRIPTION
.sp
Knot DNS is a high\-performance authoritative DNS server. The \fIknotd\fP program is
the DNS server daemon.
.SS Config options
.INDENT 0.0
.TP
\fB\-c\fP, \fB\-\-config\fP \fIfile\fP
Use a textual configuration file (default is \fB/usr/local/etc/knot/knot.conf\fP).
.TP
\fB\-C\fP, \fB\-\-confdb\fP \fIdirectory\fP
Use a binary configuration database directory (default is \fB/usr/local/var/lib/knot/confdb\fP).
The default configuration database, if exists, has a preference to the default
configuration file.
.UNINDENT
.SS Options
.INDENT 0.0
.TP
\fB\-m\fP, \fB\-\-max\-conf\-size\fP \fIMiB\fP
Set maximum size of the configuration database
(default is 500 MiB, maximum 10000 MiB).
.TP
\fB\-s\fP, \fB\-\-socket\fP \fIpath\fP
Use a remote control UNIX socket path (default is \fB/usr/local/var/run/knot/knot.sock\fP).
.TP
\fB\-d\fP, \fB\-\-daemonize\fP [\fIdirectory\fP]
Run the server as a daemon. New root directory may be specified
(default is \fB/\fP).
.TP
\fB\-v\fP, \fB\-\-verbose\fP
Enable debug output.
.TP
\fB\-h\fP, \fB\-\-help\fP
Print the program help.
.TP
\fB\-V\fP, \fB\-\-version\fP
Print the program version. The option \fB\-VV\fP makes the program
print the compile time configuration summary.
.UNINDENT
.SS Signals
.sp
The \fIknotd\fP process handles the following signals:
.INDENT 0.0
.IP \(bu 2
SIGINT – Stop the process.
.IP \(bu 2
SIGHUP – Reload the server configuration and reopen configured log files.
.IP \(bu 2
SIGUSR1 – Reload all configured zones (not recommended with catalog zones).
.UNINDENT
.SH EXIT VALUES
.sp
Exit status of 0 means successful operation. Any other exit status indicates
an error.
.SH SEE ALSO
.sp
\fBknot.conf(5)\fP, \fBknotc(8)\fP, \fBkeymgr(8)\fP,
\fBkjournalprint(8)\fP\&.
.SH AUTHOR
CZ.NIC, z.s.p.o. and contributors <https://www.knot-dns.cz/>
.SH COPYRIGHT
Copyright (C) CZ.NIC, z.s.p.o. and contributors
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