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NTPQ(8)			  BSD System Manager's Manual		       NTPQ(8)

NAME
     ntpq -- standard NTP query	program

SYNOPSIS
     ntpq [-flags] [-flag [value]] [--option-name[[=| ]value]] [ host ...]

DESCRIPTION
     The ntpq utility program is used to query NTP servers which implement the
     standard NTP mode 6 control message formats defined in Appendix B of the
     NTPv3 specification RFC1305, requesting information about current state
     and/or changes in that state.  The	same formats are used in NTPv4,	al-
     though some of the	variables have changed and new ones added. The de-
     scription on this page is for the NTPv4 variables.	 The program may be
     run either	in interactive mode or controlled using	command	line argu-
     ments.  Requests to read and write	arbitrary variables can	be assembled,
     with raw and pretty-printed output	options	being available.  The ntpq
     utility 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	re-
     quests 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 op-
     tions are given, ntpq will	attempt	to read	commands from the standard in-
     put 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.	 The ntpq utility will prompt for commands if the standard in-
     put 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.  The ntpq utility makes one at-
     tempt to retransmit requests, and will time requests out if the remote
     host is not heard from within a suitable timeout time.  Specifying	a com-
     mand 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.

   Internal Commands
     Interactive format	commands consist of a keyword followed by zero to four
     arguments.	 Only enough characters	of the full keyword to uniquely	iden-
     tify the command need be typed.  A	number of interactive format commands
     are executed entirely within the ntpq utility itself and do not result in
     NTP mode 6	requests being sent to a server.  These	are described follow-
     ing.
	   ? [command_keyword]
	   help	[command_keyword]
				A `?' by itself	will print a list of all the
				command	keywords known to this incarnation of
				ntpq.  A `?' followed by a command keyword
				will print function and	usage information
				about the command.  This command is probably a
				better source of information about ntpq	than
				this manual page.
	   addvars variable_name[=value] ...
	   rmvars variable_name	...
	   clearvars
	   showvars		The data carried by NTP	mode 6 messages	con-
				sists of a list	of items of the	form
				`variable_name=value', where the `=value' is
				ignored, and can be omitted, in	requests to
				the server to read variables.  The ntpq	util-
				ity maintains an internal list in which	data
				to be included in control messages can be as-
				sembled, and sent using	the readlist and
				writelist commands described below.  The
				addvars	command	allows variables and their op-
				tional values to be added to the list.	If
				more than one variable is to be	added, the
				list should be comma-separated and not contain
				white space.  The rmvars command can be	used
				to remove individual variables from the	list,
				while the clearlist command removes all	vari-
				ables from the list.  The showvars command
				displays the current list of optional vari-
				ables.
	   authenticate	[yes | no]
				Normally ntpq does not authenticate requests
				unless they are	write requests.	 The command
				`authenticate yes' causes ntpq to send authen-
				tication with all requests it makes.  Authen-
				ticated	requests causes	some servers to	handle
				requests slightly differently, and can occa-
				sionally melt the CPU in fuzzballs if you turn
				authentication on before doing a peer display.
				The command `authenticate' causes ntpq to dis-
				play whether or	not ntpq is currently authein-
				ticating requests.
	   cooked		Causes output from query commands to be
				"cooked", so that variables which are recog-
				nized by ntpq will have	their values reformat-
				ted for	human consumption.  Variables which
				ntpq thinks should have	a decodable value but
				didn't are marked with a trailing `?'.
	   debug [more | less |	off]
				With no	argument, displays the current debug
				level.	Otherwise, the debug level is changed
				to the indicated level.
	   delay milliseconds	Specify	a time interval	to be added to time-
				stamps included	in requests which require au-
				thentication.  This is used to enable (unreli-
				able) server reconfiguration over long delay
				network	paths or between machines whose	clocks
				are unsynchronized.  Actually the server does
				not now	require	timestamps in authenticated
				requests, so this command may be obsolete.
	   exit			Exit ntpq.
	   host	hostname	Set the	host to	which future queries will be
				sent.  hostname	may be either a	host name or a
				numeric	address.
	   hostnames [yes | no]
				If yes is specified, host names	are printed in
				information displays.  If no is	specified, nu-
				meric addresses	are printed instead.  The de-
				fault is yes, unless modified using the	com-
				mand line -n switch.
	   keyid keyid		This command allows the	specification of a key
				number to be used to authenticate configura-
				tion requests.	This must correspond to	the
				controlkey key number the server has been con-
				figured	to use for this	purpose.
	   keytype [md5	| OpenSSLDigestType]
				Specify	the type of key	to use for authenti-
				cating requests.  md5 is alway supported.  If
				ntpq was built with OpenSSL support, any di-
				gest type supported by OpenSSL can also	be
				provided.  If no argument is given, the	cur-
				rent keytype is	displayed.
	   ntpversion [1 | 2 | 3 | 4]
				Sets the NTP version number which ntpq claims
				in packets.  Defaults to 3, and	note that mode
				6 control messages (and	modes, for that	mat-
				ter) didn't exist in NTP version 1.  There ap-
				pear to	be no servers left which demand	ver-
				sion 1.	 With no argument, displays the	cur-
				rent NTP version that will be used when	commu-
				nicating with servers.
	   passwd		This command prompts you to type in a password
				(which will not	be echoed) which will be used
				to authenticate	configuration requests.	 The
				password must correspond to the	key configured
				for use	by the NTP server for this purpose if
				such requests are to be	successful.
	   quit			Exit ntpq.
	   raw			Causes all output from query commands is
				printed	as received from the remote server.
				The only formating/interpretation done on the
				data is	to transform nonascii data into	a
				printable (but barely understandable) form.
	   timeout milliseconds
				Specify	a timeout period for responses to
				server queries.	 The default is	about 5000
				milliseconds.  Note that since ntpq retries
				each query once	after a	timeout, the total
				waiting	time for a timeout will	be twice the
				timeout	value set.
	   version		Print the version of the ntpq program.

   Control Message Commands
     Association IDs are used to identify system, peer and clock variables.
     System variables are assigned an association ID of	zero and system	name
     space, while each association is assigned a nonzero association ID	and
     peer namespace.  Most control commands send a single mode-6 message to
     the server	and expect a single response message.  The exceptions are the
     peers command, which sends	a series of messages, and the mreadlist	and
     mreadvar commands,	which iterate over a range of associations.
	   associations
		      Display a	list of	mobilized associations in the form:
			    ind	assid status conf reach	auth condition
			    last_event cnt

			    String	Description
			    ind		index on this list
			    assid	association ID
			    status	peer status word
			    conf	yes: persistent, no: ephemeral
			    reach	yes: reachable,	no: unreachable
			    auth	ok, yes, bad and none
			    condition	selection status (see the select field
						       of the peer status
						       word)
			    last_event	event report (see the event field of
						       the peer	status word)
			    cnt		event count (see the count field of
						       the peer	status word)
	   authinfo   Display the authentication statistics.
	   clockvar assocID [name[=value]] [...]
	   cv assocID [name[=value]] [...]
		      Display a	list of	clock variables	for those associations
		      supporting a reference clock.
	   :config [...]
		      Send the remainder of the	command	line, including	white-
		      space, to	the server as a	run-time configuration command
		      in the same format as a line in the configuration	file.
		      This command is experimental until further notice	and
		      clarification. Authentication is of course required.
	   config-from-file filename
		      Send the each line of filename to	the server as run-time
		      configuration commands in	the same format	as a line in
		      the configuration	file. This command is experimental un-
		      til further notice and clarification. Authentication is
		      required.
	   ifstats    Display statistics for each local	network	address. Au-
		      thentication is required.
	   iostats    Display network and reference clock I/O statistics.
	   kerninfo   Display kernel loop and PPS statistics. As with other
		      ntpq output, times are in	milliseconds. The precision
		      value displayed is in milliseconds as well, unlike the
		      precision	system variable.
	   lassociations
		      Perform the same function	as the associations command,
		      except display mobilized and unmobilized associations.
	   lopeers [-4 | -6]
		      Obtain and print a list of all peers and clients showing
		      dstadr (associated with any given	IP version).
	   lpeers [-4 |	-6]
		      Print a peer spreadsheet for the appropriate IP ver-
		      sion(s).	dstadr (associated with	any given IP version).
	   monstats   Display monitor facility statistics.
	   mrulist [limited | kod | mincount=count | laddr=localaddr |
		      sort=sortorder | resany=hexmask |	resall=hexmask]
		      Obtain and print traffic counts collected	and maintained
		      by the monitor facility.	With the exception of
		      sort=sortorder, the options filter the list returned by
		      ntpd. The	limited	and kod	options	return only entries
		      representing client addresses from which the last	packet
		      received triggered either	discarding or a	KoD response.
		      The mincount=count option	filters	entries	representing
		      less than	count packets.	The laddr=localaddr option
		      filters entries for packets received on any local	ad-
		      dress other than localaddr.  resany=hexmask and
		      resall=hexmask filter entries containing none or less
		      than all,	respectively, of the bits in hexmask, which
		      must begin with 0x.  The sortorder defaults to lstint
		      and may be any of	addr, count, avgint, lstint, or	any of
		      those preceded by	a minus	sign (hyphen) to reverse the
		      sort order.  The output columns are:
			    Column     Description
			    lstint     Interval	in s between the receipt of
				       the most	recent packet from this	ad-
				       dress and the completion	of the re-
				       trieval of the MRU list by ntpq.
			    avgint     Average interval	in s between packets
				       from this address.
			    rstr       Restriction flags associated with this
				       address.	 Most are copied unchanged
				       from the	matching restrict command,
				       however 0x400 (kod) and 0x20 (limited)
				       flags are cleared unless	the last
				       packet from this	address	triggered a
				       rate control response.
			    r	       Rate control indicator, either a	pe-
				       riod, L or K for	no rate	control	re-
				       sponse, rate limiting by	discarding, or
				       rate limiting with a KoD	response, re-
				       spectively.
			    m	       Packet mode.
			    v	       Packet version number.
			    count      Packets received	from this address.
			    rport      Source port of last packet from this
				       address.
			    remote address
				       DNS name, numeric address, or address
				       followed	by claimed DNS name which
				       could not be verified in	parentheses.
	   mreadvar assocID assocID [variable_name[=value]] ...
	   mrv assocID assocID [variable_name[=value]] ...
		      Perform the same function	as the readvar command,	except
		      for a range of association IDs.  This range is deter-
		      mined from the association list cached by	the most re-
		      cent associations	command.
	   opeers [-4 |	-6]
		      Obtain and print the old-style list of all peers and
		      clients showing dstadr (associated with any given	IP
		      version),	rather than the	refid.
	   passociations
		      Perform the same function	as the associations command,
		      except that it uses previously stored data rather	than
		      making a new query.
	   peers      Display a	list of	peers in the form:
			    [tally]remote refid	st t when pool reach delay
			    offset jitter
			    Variable   Description
			    [tally]    single-character	code indicating	cur-
				       rent value of the select	field of the
				       peer status word: decode.html#peer
			    remote     host name (or IP	number)	of peer.  The
				       value displayed will be truncated to 15
				       characters  unless the -w flag is
				       given, in which case the	full value
				       will be displayed on the	first line,
				       and the remaining data is displayed on
				       the next	line.
			    refid      association ID or decode.html#kiss
			    st	       stratum
			    t	       u: unicast or manycast client, b:
				       broadcast or multicast client, l: local
				       (reference clock), s: symmetric (peer),
				       A: manycast server, B: broadcast
				       server, M: multicast server
			    when       sec/min/hr since	last received packet
			    poll       poll interval (log2 s)
			    reach      reach shift register (octal)
			    delay      roundtrip delay
			    offset     offset of server	relative to this host
			    jitter     jitter
	   apeers     Display a	list of	peers in the form:
			    [tally]remote refid	assid st t when	pool reach
			    delay offset jitter
		      where the	output is just like the	peers command except
		      that the refid is	displayed in hex format	and the	asso-
		      ciation number is	also displayed.
	   pstats assocID
		      Show the statistics for the peer with the	given assocID.
	   readlist assocID
	   rl assocID
		      Read the system or peer variables	included in the	vari-
		      able list.
	   readvar assocID name[=value]	[, ...]
	   rv assocID name[=value] [, ...]
		      Display the specified variables.	If assocID is zero,
		      the variables are	from the System	Variables name space,
		      otherwise	they are from the Peer Variables name space.
		      The assocID is required, as the same name	can occur in
		      both spaces.  If no name is included, all	operative
		      variables	in the name space are displayed.  In this case
		      only, if the assocID is omitted, it is assumed zero.
		      Multiple names are specified with	comma separators and
		      without whitespace.  Note	that time values are repre-
		      sented in	milliseconds and frequency values in
		      parts-per-million	(PPM).	Some NTP timestamps are	repre-
		      sented in	the format YYYYMMDDTTTT	, where	YYYY is	the
		      year, MM the month of year, DD the day of	month and TTTT
		      the time of day.
	   reslist    Show the access control (restrict) list for ntpq.
	   saveconfig filename
		      Write the	current	configuration, including any runtime
		      modifications given with :config or config-from-file, to
		      the ntpd host's file filename.  This command will	be re-
		      jected by	the server unless saveconfigdir:
		      miscopt.html#saveconfigdir appears in the	ntpd configu-
		      ration file.  filename can use strftime format specifies
		      to substitute the	current	date and time, for example,
		      q]saveconfig ntp-%Y%m%d-%H%M%S.confq].  The filename
		      used is stored in	system variable	savedconfig.  Authen-
		      tication is required.
	   timerstats
		      Display interval timer counters.
	   writelist assocID
		      Write the	system or peer variables included in the vari-
		      able list.
	   writevar assocID name=value [, ...]
		      Write the	specified variables.  If the assocID is	zero,
		      the variables are	from the System	Variables name space,
		      otherwise	they are from the Peer Variables name space.
		      The assocID is required, as the same name	can occur in
		      both spaces.
	   sysinfo    Display operational summary.
	   sysstats   Print statistics counters	maintained in the protocol
		      module.

   Status Words	and Kiss Codes
     The current state of the operating	program	is shown in a set of status
     words maintained by the system.  Status information is also available on
     a per-association basis.  These words are displayed in the	rv and as com-
     mands both	in hexadecimal and in decoded short tip	strings.  The codes,
     tips and short explanations are documented	on the Event Messages and
     Status Words: decode.html page.  The page also includes a list of system
     and peer messages,	the code for the latest	of which is included in	the
     status word.

     Information resulting from	protocol machine state transitions is dis-
     played using an informal set of ASCII strings called kiss codes:
     decode.html#kiss The original purpose was for kiss-o'-death (KoD) packets
     sent by the server	to advise the client of	an unusual condition.  They
     are now displayed,	when appropriate, in the reference identifier field in
     various billboards.

   System Variables
     The following system variables appear in the rv billboard.	 Not all vari-
     ables are displayed in some configurations.
	   Variable   Description
	   status     system status word: decode.html#sys
	   version    NTP software version and build time
	   processor  hardware platform	and version
	   system     operating	system and version
	   leap	      leap warning indicator (0-3)
	   stratum    stratum (1-15)
	   precision  precision	(log2 s)
	   rootdelay  total roundtrip delay to the primary reference clock
	   rootdisp   total dispersion to the primary reference	clock
	   peer	      system peer association ID
	   tc	      time constant and	poll exponent (log2 s) (3-17)
	   mintc      minimum time constant (log2 s) (3-10)
	   clock      date and time of day
	   refid      reference	ID or kiss code: decode.html#kiss
	   reftime    reference	time
	   offset     combined	offset of server relative to this host
	   sys_jitter
		      combined system jitter
	   frequency  frequency	offset (PPM) relative to hardware clock
	   clk_wander
		      clock frequency wander (PPM)
	   clk_jitter
		      clock jitter
	   tai	      TAI-UTC offset (s)
	   leapsec    NTP seconds when the next	leap second is/was inserted
	   expire     NTP seconds when the NIST	leapseconds file expires
     The jitter	and wander statistics are exponentially-weighted RMS averages.
     The system	jitter is defined in the NTPv4 specification; the clock	jitter
     statistic is computed by the clock	discipline module.

     When the NTPv4 daemon is compiled with the	OpenSSL	software library, ad-
     ditional system variables are displayed, including	some or	all of the
     following,	depending on the particular Autokey dance:
	   Variable   Description
	   host	      Autokey host name	for this host
	   ident      Autokey group name for this host
	   flags      host flags  (see Autokey specification)
	   digest     OpenSSL message digest algorithm
	   signature  OpenSSL digest/signature scheme
	   update     NTP seconds at last signature update
	   cert	      certificate subject, issuer and certificate flags
	   until      NTP seconds when the certificate expires

   Peer	Variables
     The following peer	variables appear in the	rv billboard for each associa-
     tion.  Not	all variables are displayed in some configurations.
	   Variable   Description
	   associd    association ID
	   status     peer status word:	decode.html#peer
	   srcadr     source (remote) IP address
	   srcport    source (remote) port
	   dstadr     destination (local) IP address
	   dstport    destination (local) port
	   leap	      leap indicator (0-3)
	   stratum    stratum (0-15)
	   precision  precision	(log2 s)
	   rootdelay  total roundtrip delay to the primary reference clock
	   rootdisp   total root dispersion to the primary reference clock
	   refid      reference	ID or kiss code: decode.html#kiss
	   reftime    reference	time
	   reach      reach register (octal)
	   unreach    unreach counter
	   hmode      host mode	(1-6)
	   pmode      peer mode	(1-5)
	   hpoll      host poll	exponent (log2 s) (3-17)
	   ppoll      peer poll	exponent (log2 s) (3-17)
	   headway    headway (see Rate	Management and the Kiss-o'-Death
		      Packet: rate.html)
	   flash      flash status word: decode.html#flash
	   offset     filter offset
	   delay      filter delay
	   dispersion
		      filter dispersion
	   jitter     filter jitter
	   ident      Autokey group name for this association
	   bias	      unicast/broadcast	bias
	   xleave     interleave delay (see NTP	Interleaved Modes:
		      xleave.html)
     The bias variable is calculated when the first broadcast packet is	re-
     ceived after the calibration volley.  It represents the offset of the
     broadcast subgraph	relative to the	unicast	subgraph.  The xleave variable
     appears only for the interleaved symmetric	and interleaved	modes.	It
     represents	the internal queuing, buffering	and transmission delays	for
     the preceding packet.

     When the NTPv4 daemon is compiled with the	OpenSSL	software library, ad-
     ditional peer variables are displayed, including the following:
	   Variable   Description
	   flags      peer flags (see Autokey specification)
	   host	      Autokey server name
	   flags      peer flags (see Autokey specification)
	   signature  OpenSSL digest/signature scheme
	   initsequence
		      initial key ID
	   initkey    initial key index
	   timestamp  Autokey signature	timestamp

   Clock Variables
     The following clock variables appear in the cv billboard for each associ-
     ation with	a reference clock.  Not	all variables are displayed in some
     configurations.
	   Variable   Description
	   associd    association ID
	   status     clock status word: decode.html#clock
	   device     device description
	   timecode   ASCII time code string (specific to device)
	   poll	      poll messages sent
	   noreply    no reply
	   badformat  bad format
	   baddata    bad date or time
	   fudgetime1
		      fudge time 1
	   fudgetime2
		      fudge time 2
	   stratum    driver stratum
	   refid      driver reference ID
	   flags      driver flags

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 num-
	     ber 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).

     -d, --debug-level
	     Increase debug verbosity level.  This option may appear an	unlim-
	     ited number of times.

     -D	number,	--set-debug-level=number
	     Set the debug verbosity level.  This option may appear an unlim-
	     ited number of times.  This option	takes an integer number	as its
	     argument.

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

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

     -n, --numeric
	     numeric host addresses.

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

     --old-rv
	     Always output status line with readvar.

	     By	default, ntpq now suppresses the associd=...  line that	pre-
	     cedes the output of readvar (alias	rv) when a single variable is
	     requested,	such as	ntpq -c	"rv 0 offset".	This option causes
	     ntpq to include both lines	of output for a	single-variable	read-
	     var.  Using an environment	variable to preset this	option in a
	     script will enable	both older and newer ntpq to behave identi-
	     cally in this regard.

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

	     Print a list of the peers known to	the server as well as a	sum-
	     mary of their state. This is equivalent to	the 'peers' interac-
	     tive command.

     -w, --wide
	     Display the full 'remote' value.

	     Display the full value of the 'remote' value.  If this requires
	     more than 15 characters, display the full value, emit a newline,
	     and continue the data display properly indented on	the next line.

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

     -!, --more-help
	     Pass the extended usage information through a pager.

     ->	[cfgfile], --save-opts [=cfgfile]
	     Save the option state to cfgfile.	The default is the last	con-
	     figuration	file listed in the OPTION PRESETS section, below.  The
	     command will exit after updating the config file.

     -<	cfgfile, --load-opts=cfgfile, --no-load-opts
	     Load options from cfgfile.	 The no-load-opts form will disable
	     the loading of earlier config/rc/ini files.  --no-load-opts is
	     handled early, out	of order.

     --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	envi-
     ronment variables named:
       NTPQ_<option-name> or NTPQ
     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.

ENVIRONMENT
     See OPTION	PRESETS	for configuration environment variables.

FILES
     See OPTION	PRESETS	for configuration files.

EXIT STATUS
     One of the	following exit values will be returned:

     0	(EXIT_SUCCESS)
	     Successful	program	execution.

     1	(EXIT_FAILURE)
	     The operation failed or the command syntax	was not	valid.

     66	 (EX_NOINPUT)
	     A specified configuration file could not be loaded.

     70	 (EX_SOFTWARE)
	     libopts had an internal operational error.	 Please	report it to
	     autogen-users@lists.sourceforge.net.  Thank you.

AUTHORS
     The University of Delaware	and Network Time Foundation

COPYRIGHT
     Copyright (C) 1992-2016 The University of Delaware	and Network Time Foun-
     dation all	rights reserved.  This program is released under the terms of
     the NTP license, <http://ntp.org/license>.

BUGS
     Please send bug reports to: http://bugs.ntp.org, bugs@ntp.org

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

BSD				January	20 2016				   BSD

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPTION PRESETS | ENVIRONMENT | FILES | EXIT STATUS | AUTHORS | COPYRIGHT | BUGS | NOTES

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