134 lines
3.5 KiB
Groff
134 lines
3.5 KiB
Groff
.\" Copyright (c) 1998,1999 by Internet Software Consortium
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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.\" ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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.\" CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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.\" DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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.\" PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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.\" ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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.\" SOFTWARE.
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.\"
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.Dd December 31, 1998
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.Dt @INDOT_U@NDC @SYS_OPS_EXT_U@
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.Os BSD 4
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.Sh NAME
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.Nm ndc
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.Nd name daemon control program
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.Sh SYNOPSIS
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.Nm ndc
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.Op Fl c Ar channel
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.Op Fl l Ar localsock
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.Op Fl p Ar pidfile
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.Op Fl d
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.Op Fl q
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.Op Fl s
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.Op Fl t
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.Op Ar command
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.Sh DESCRIPTION
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This command allows the system administrator to control the operation
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of a name server. If no
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.Ar command
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is given,
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.Ic ndc
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will prompt for commands until it reads EOF.
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.Pp
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Options are:
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.Bl -tag -width Fl
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.It Fl c Ar channel
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Specifies the rendezvous point for the control channel. The default is
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.Pa /var/run/ndc
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(a UNIX domain socket which is also the server's default control channel).
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If the desired control channel is a TCP/IP socket, then the format of the
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.Ar channel
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argument is
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.Sy ipaddr/port
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(for example,
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.Sy 127.0.0.1/54
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would be TCP port 54 on the local host.)
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.It Fl l Ar localsock
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This option will
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.Xr bind 2
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the client side of the control channel to a specific address. Servers can
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be configured to reject connections which do not come from specific addresses.
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The format is the same as for
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.Ar channel
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(see above).
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.It Fl p Ar pidfile
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For backward compatibility with older name servers,
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.Ic ndc
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is able to use UNIX signals for control communications. This capability is
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optional in modern name servers and will disappear altogether at some future
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time. Note that the available
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.Ar command
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set is narrower when the signal interface is used. A likely
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.Ar pidfile
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argument would be something like
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.Pa /var/run/named.pid .
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.It Fl d
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Turns on debugging output, which is of interest mainly to developers.
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.It Fl q
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Suppresses prompts and result text.
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.It Fl s
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Suppresses nonfatal error announcements.
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.It Fl t
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Turns on protocol and system tracing, useful in installation debugging.
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.El
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.Sh COMMANDS
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Several commands are built into
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.Ic ndc ,
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but the full set of commands supported by the name server is dynamic and
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should be discovered using the
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.Ar help
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command (see below). Builtin commands are:
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.Bl -tag -width Fl
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.It Ar /help
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Provides help for builtin commands.
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.It Ar /exit
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Exit from
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.Ic ndc
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command interpreter.
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.It Ar /trace
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Toggle tracing (see
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.Fl t
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description above).
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.It Ar /debug
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Toggle debugging (see
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.Fl d
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description above).
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.It Ar /quiet
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Toggle quietude (see
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.Fl q
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description above).
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.It Ar /silent
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Toggle silence (see
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.Fl s
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description above).
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.El
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.Sh NOTES
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If running in
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.Ar pidfile
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mode, any arguments to
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.Ar start
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and
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.Ar restart
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commands are passed to the new
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.Ic @INDOT@named
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on its command line. If running in
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.Ar channel
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mode, there is no
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.Ar start
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command and the
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.Ar restart
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command just tells the name server to
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.Xr execvp @LIB_C_EXT@
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itself.
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.Sh AUTHOR
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Paul Vixie (Internet Software Consortium)
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.Sh SEE ALSO
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.Xr @INDOT@named @SYS_OPS_EXT@ ,
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