NTPDC(1)                      Programmer's Manual                     NTPDC(1)



NAME
       ntpdc - vendor-specific NTP query program

SYNOPSIS
       ntpdc [-flag [value]]... [--opt-name [[=| ]value]]...
               [ host ...]

DESCRIPTION
       This manual page briefly documents the ntpdc command.  The [= prog-name
       =] utility program is used to query an NTP daemon about its current
       state and to request changes in that state.  It uses NTP mode 7 control
       message formats described in the source code.  The program may be run
       either in interactive mode or controlled using command line arguments.
       Extensive state and statistics information is available through the [=
       prog-name =] interface.  In addition, nearly all the configuration
       options which can be specified at startup using ntpd's configuration
       file may also be specified at run time using [= prog-name =] .



OPTIONS
       -4, --ipv4
              Force IPv4 DNS name resolution.  This option must not appear in
              combination with any of the following options: ipv6.

              Force DNS resolution of following host names on the command line
              to the IPv4 namespace.

       -6, --ipv6
              Force IPv6 DNS name resolution.  This option must not appear in
              combination with any of the following options: ipv4.

              Force DNS resolution of following host names on the command line
              to the IPv6 namespace.

       -c cmd, --command=cmd
              run a command and exit.  This option may appear an unlimited
              number of times.

              The following argument is interpreted as an interactive format
              command and is added to the list of commands to be executed on
              the specified host(s).

       -l, --listpeers
              Print a list of the peers.  This option must not appear in
              combination with any of the following options: command.

              Print a list of the peers known to the server as well as a
              summary of their state. This is equivalent to the 'listpeers'
              interactive command.

       -p, --peers
              Print a list of the peers.  This option must not appear in
              combination with any of the following options: command.

              Print a list of the peers known to the server as well as a
              summary of their state. This is equivalent to the 'peers'
              interactive command.

       -s, --showpeers
              Show a list of the peers.  This option must not appear in
              combination with any of the following options: command.

              Print a list of the peers known to the server as well as a
              summary of their state. This is equivalent to the 'dmpeers'
              interactive command.

       -i, --interactive
              Force ntpq to operate in interactive mode.  This option must not
              appear in combination with any of the following options:
              command, listpeers, peers, showpeers.

              Force ntpq to operate in interactive mode.  Prompts will be
              written to the standard output and commands read from the
              standard input.

       -d, --debug-level
              Increase output debug message level.  This option may appear an
              unlimited number of times.

              Increase the debugging message output level.

       -D string, --set-debug-level=string
              Set the output debug message level.  This option may appear an
              unlimited number of times.

              Set the output debugging level.  Can be supplied multiple times,
              but each overrides the previous value(s).

       -n, --numeric
              numeric host addresses.

              Output all host addresses in dotted-quad numeric format rather
              than converting to the canonical host names.

       -?, --help
              Display extended usage information and exit.

       -!, --more-help
              Extended usage information passed thru pager.

       -> [rcfile], --save-opts[=rcfile]
              Save the option state to rcfile.  The default is the last
              configuration file listed in the OPTION PRESETS section, below.

       -< rcfile, --load-opts=rcfile, --no-load-opts
              Load options from rcfile.  The no-load-opts form will disable
              the loading of earlier RC/INI files.  --no-load-opts is handled
              early, out of order.

       - [{v|c|n}], --version[={v|c|n}]
              Output version of program and exit.  The default mode is `v', a
              simple version.  The `c' mode will print copyright information
              and `n' will print the full copyright notice.

OPTION PRESETS
       Any option that is not marked as not presettable may be preset by
       loading values from configuration ("RC" or ".INI") file(s) and values
       from environment variables named:
         NTPDC_<option-name> or NTPDC
       The environmental presets take precedence (are processed later than)
       the configuration files.  The homerc files are "$HOME", and ".".  If
       any of these are directories, then the file .ntprc is searched for
       within those directories.

AUTHOR
       David L. Mills and/or others
       Please send bug reports to:  http://bugs.ntp.org, bugs@ntp.org


       see html/copyright.html

       This manual page was AutoGen-erated from the ntpdc option definitions.



( 4.2.6p2)                        2010-07-09                          NTPDC(1)
