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NTPQ(1) 						      General Commands Manual							   NTPQ(1)

NAME
ntpq - standard NTP query program SYNOPSIS
ntpq [-inp] [-c command] [host] [...] DESCRIPTION
The ntpq utility program is used to monitor NTP daemon ntpd operations and determine performance. It uses the standard NTP mode 6 control message formats defined in Appendix B of the NTPv3 specification RFC1305. The same formats are used in NTPv4, although some of the vari- ables have changed and new ones added. The description on this page is for the NTPv4 variables. The program can be run either in interactive mode or controlled using command line arguments. Requests to read and write arbitrary vari- ables can be assembled, with raw and pretty-printed output options being available. The ntpq can also obtain and print a list of peers in a common format by sending multiple queries to the server. If one or more request options is included on the command line when ntpq is executed, each of the requests will be sent to the NTP servers running on each of the hosts given as command line arguments, or on localhost by default. If no request options are given, ntpq will attempt to read commands from the standard input and execute these on the NTP server running on the first host given on the command line, again defaulting to localhost when no other host is specified. ntpq will prompt for commands if the standard input is a terminal device. ntpq uses NTP mode 6 packets to communicate with the NTP server, and hence can be used to query any compatible server on the network which permits it. Note that since NTP is a UDP protocol this communication will be somewhat unreliable, especially over large distances in terms of network topology. ntpq makes one attempt to retransmit requests, and will time requests out if the remote host is not heard from within a suitable timeout time. Note that in contexts where a host name is expected, a -4 qualifier preceding the host name forces DNS resolution to the IPv4 namespace, while a -6 qualifier forces DNS resolution to the IPv6 namespace. OPTIONS
Command line options are described following. Specifying a command line option other than -i or -n will cause the specified query (queries) to be sent to the indicated host(s) immediately. Otherwise, ntpq will attempt to read interactive format commands from the standard input. -4 Force DNS resolution of following host names on the command line to the IPv4 namespace. -6 Force DNS resolution of following host names on the command line to the IPv6 namespace. -c 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). Multiple -c options may be given. -i Force ntpq to operate in interactive mode. Prompts will be written to the standard output and commands read from the standard input. -n Output all host addresses in dotted-quad numeric format rather than converting to the canonical host names. -p 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 com- mand. SEE ALSO
/usr/share/doc/ntp-doc/html/ntpq.html for the full documentation. Network Time Protocol November 9, 2007 NTPQ(1)

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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 configura- tion 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. ( 4.2.6) 2009-12-10 NTPDC(1)
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