19c2daa00SOllivier Robert<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 29c2daa00SOllivier Robert<html> 39c2daa00SOllivier Robert<head> 4ea906c41SOllivier Robert<meta http-equiv="content-type" content="text/html;charset=iso-8859-1"> 59c2daa00SOllivier Robert<meta name="generator" content="HTML Tidy, see www.w3.org"> 69c2daa00SOllivier Robert<title>ntpdc - special NTP query program</title> 72b15cb3dSCy Schubert<!-- Changed by: Harlan &, 31-Jan-2014 --> 89c2daa00SOllivier Robert<link href="scripts/style.css" type="text/css" rel="stylesheet"> 99c2daa00SOllivier Robert</head> 109c2daa00SOllivier Robert<body> 119c2daa00SOllivier Robert<h3><tt>ntpdc</tt> - special NTP query program</h3> 129c2daa00SOllivier Robert<img src="pic/alice31.gif" alt="gif" align="left"><a href="http://www.eecis.udel.edu/~mills/pictures.html">from <i>Alice's Adventures in Wonderland</i>, Lewis Carroll</a> 132b15cb3dSCy Schubert<p>This program is a big, deprecated puppy.</p> 142b15cb3dSCy Schubert<p>Last update: 152b15cb3dSCy Schubert <!-- #BeginDate format:En2m -->31-Jan-2014 06:54<!-- #EndDate --> 162b15cb3dSCy Schubert UTC</p> 179c2daa00SOllivier Robert<br clear="left"> 189c2daa00SOllivier Robert<h4>More Help</h4> 192b15cb3dSCy Schubert<script type="text/javascript" language="javascript" src="scripts/manual.txt"></script> 209c2daa00SOllivier Robert<hr> 219c2daa00SOllivier Robert<h4>Synopsis</h4> 222b15cb3dSCy Schubert<tt>ntpdc [ -46dilnps ] [ -c <i>command</i> ] [ <i>host</i> ] [ ... ]</tt> 239c2daa00SOllivier Robert<h4>Description</h4> 242b15cb3dSCy Schubert<p><tt>ntpdc</tt> is deprecated - please use <tt>ntpq</tt> now, as it uses a more sane interface and can provide all of the information that <tt>ntpdc</tt> used to provide.</p> 252b15cb3dSCy Schubert<p><tt>ntpdc</tt> is used to query the <tt>ntpd</tt> daemon about its current state and to request changes in that state. The program may be run either in interactive mode or controlled using command line arguments. Extensive state and statistics information is available through the <tt>ntpdc</tt> 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 <tt>ntpdc</tt>.</p> 269c2daa00SOllivier Robert<p>If one or more request options are included on the command line when <tt>ntpdc</tt> 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, <tt>ntpdc</tt> 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. <tt>ntpdc</tt> will prompt for commands if the standard input is a terminal device.</p> 279c2daa00SOllivier Robert<p><tt>ntpdc</tt> uses NTP mode 7 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. <tt>ntpdc</tt> makes no attempt to retransmit requests, and will time requests out if the remote host is not heard from within a suitable timeout time.</p> 289c2daa00SOllivier Robert<p>The operation of <tt>ntpdc</tt> are specific to the particular implementation of the <tt>ntpd</tt> daemon and can be expected to work only with this and maybe some previous versions of the daemon. Requests from a remote <tt>ntpdc</tt> program which affect the state of the local server must be authenticated, which requires both the remote program and local server share a common key and key identifier.</p> 299c2daa00SOllivier Robert<p>Note that in contexts where a host name is expected, a <tt>-4</tt> qualifier preceding the host name forces DNS resolution to the IPv4 namespace, while a <tt>-6</tt> qualifier forces DNS resolution to the IPv6 namespace.</p> 309c2daa00SOllivier Robert<h4>Command Line Options</h4> 319c2daa00SOllivier Robert<p>Specifying a command line option other than <tt>-i</tt> or <tt>-n</tt> will cause the specified query (queries) to be sent to the indicated host(s) immediately. Otherwise, <tt>ntpdc</tt> will attempt to read interactive format commands from the standard input.</p> 329c2daa00SOllivier Robert<dl> 332b15cb3dSCy Schubert <dt><tt>-4</tt></dt> 342b15cb3dSCy Schubert <dd>Force DNS resolution of following host names on the command line to the IPv4 namespace.</dd> 352b15cb3dSCy Schubert <dt><tt>-6</tt></dt> 362b15cb3dSCy Schubert <dd>Force DNS resolution of following host names on the command line to the IPv6 namespace.</dd> 372b15cb3dSCy Schubert <dt><tt>-c <i>command</i></tt></dt> 382b15cb3dSCy Schubert <dd>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.</dd> 392b15cb3dSCy Schubert <dt><tt>-d</tt> 402b15cb3dSCy Schubert <dd>Turn on debugging mode. 412b15cb3dSCy Schubert <dt><tt>-i</tt></dt> 422b15cb3dSCy Schubert <dd>Force <tt>ntpdc</tt> to operate in interactive mode. Prompts will be written to the standard output and commands read from the standard input.</dd> 432b15cb3dSCy Schubert <dt><tt>-l</tt></dt> 442b15cb3dSCy Schubert <dd>Obtain a list of peers which are known to the server(s). This switch is equivalent to <tt>-c listpeers</tt>.</dd> 452b15cb3dSCy Schubert <dt><tt>-n</tt></dt> 462b15cb3dSCy Schubert <dd>Output all host addresses in dotted-quad numeric format rather than converting to the canonical host names.</dd> 472b15cb3dSCy Schubert <dt><tt>-p</tt></dt> 482b15cb3dSCy Schubert <dd>Print a list of the peers known to the server as well as a summary of their state. This is equivalent to <tt>-c peers</tt>.</dd> 492b15cb3dSCy Schubert <dt><tt>-s</tt></dt> 502b15cb3dSCy Schubert <dd>Print a list of the peers known to the server as well as a summary of their state, but in a slightly different format than the -p switch. This is equivalent to <tt>-c dmpeers</tt>.</dd> 519c2daa00SOllivier Robert</dl> 529c2daa00SOllivier Robert<h4>Interactive Commands</h4> 539c2daa00SOllivier Robert<p>Interactive format commands consist of a keyword followed by zero to four arguments. Only enough characters of the full keyword to uniquely identify the command need be typed. The output of a command is normally sent to the standard output, but optionally the output of individual commands may be sent to a file by appending a <tt><</tt>, followed by a file name, to the command line.</p> 549c2daa00SOllivier Robert<p>A number of interactive format commands are executed entirely within the <tt>ntpdc</tt> program itself and do not result in NTP mode 7 requests being sent to a server. These are described following.</p> 559c2daa00SOllivier Robert<dl> 569c2daa00SOllivier Robert <dt><tt>? [ <i>command_keyword</i> ]</tt><br> 572b15cb3dSCy Schubert <tt>help [ <i>command_keyword</i> ]</tt></dt> 582b15cb3dSCy Schubert <dd>A <tt>?</tt> by itself will print a list of all the command keywords known to this incarnation of <tt>ntpq</tt>. A <tt>?</tt> followed by a command keyword will print function and usage information about the command. This command is probably a better source of information about <tt>ntpq</tt> than this manual page.</dd> 592b15cb3dSCy Schubert <dt><tt>delay <i>milliseconds</i></tt></dt> 602b15cb3dSCy Schubert <dd>Specify a time interval to be added to timestamps included in requests which require authentication. This is used to enable (unreliable) 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.</dd> 612b15cb3dSCy Schubert <dt><tt>host <i>hostname</i></tt></dt> 622b15cb3dSCy Schubert <dd>Set the host to which future queries will be sent. Hostname may be either a host name or a numeric address.</dd> 632b15cb3dSCy Schubert <dt><tt>hostnames [ yes | no ]</tt></dt> 642b15cb3dSCy Schubert <dd>If <tt>yes</tt> is specified, host names are printed in information displays. If <tt>no</tt> is specified, numeric addresses are printed instead. The default is <tt>yes</tt>, unless modified using the command line <tt>-n</tt> switch.</dd> 652b15cb3dSCy Schubert <dt><tt>keyid <i>keyid</i></tt></dt> 66ea906c41SOllivier Robert <dd>This command allows the specification of a 67ea906c41SOllivier Robert key number to be used to authenticate configuration 68ea906c41SOllivier Robert requests from ntpdc to the host(s). This must 69ea906c41SOllivier Robert correspond to a key number which the host/server has 70ea906c41SOllivier Robert been configured to use for this purpose (server 712b15cb3dSCy Schubert options: <tt>trustedkey</tt>, and <tt>requestkey</tt>). If authentication is not 72ea906c41SOllivier Robert enabled on the host(s) for ntpdc 732b15cb3dSCy Schubert commands, the command <tt>"keyid 0"</tt> should be given; otherwise the <i>keyid</i> of the next subsequent <tt>addpeer/addserver/broadcast </tt> command will 742b15cb3dSCy Schubert be used.</dd> 752b15cb3dSCy Schubert <dt><tt>quit</tt></dt> 762b15cb3dSCy Schubert <dd>Exit <tt>ntpdc</tt>.</dd> 772b15cb3dSCy Schubert <dt><tt>passwd</tt></dt> 78a466cc55SCy Schubert <dd>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. 79a466cc55SCy Schubert It follows the same rules as a password entry in the keys file of <tt>ntpd</tt>.</dd> 802b15cb3dSCy Schubert <dt><tt>timeout <i>milliseconds</i></tt></dt> 812b15cb3dSCy Schubert <dd>Specify a timeout period for responses to server queries. The default is about 8000 milliseconds. Note that since <tt>ntpdc</tt> retries each query once after a timeout, the total waiting time for a timeout will be twice the timeout value set.</dd> 829c2daa00SOllivier Robert</dl> 839c2daa00SOllivier Robert<h4>Control Message Commands</h4> 849c2daa00SOllivier Robert<p>Query commands result in NTP mode 7 packets containing requests for information being sent to the server. These are read-only commands in that they make no modification of the server configuration state.</p> 859c2daa00SOllivier Robert<dl> 862b15cb3dSCy Schubert <dt><tt>listpeers</tt></dt> 872b15cb3dSCy Schubert <dd>Obtains and prints a brief list of the peers for which the server is maintaining state. These should include all configured peer associations as well as those peers whose stratum is such that they are considered by the server to be possible future synchronization candidates.</dd> 882b15cb3dSCy Schubert <dt><tt>peers</tt></dt> 892b15cb3dSCy Schubert <dd>Obtains a list of peers for which the server is maintaining state, along with a summary of that state. Summary information includes the address of the remote peer, the local interface address (0.0.0.0 if a local address has yet to be determined), the stratum of the remote peer (a stratum of 16 indicates the remote peer is unsynchronized), the polling interval, in seconds, the reachability register, in octal, and the current estimated delay, offset and dispersion of the peer, all in seconds.</dd> 902b15cb3dSCy Schubert <dd>The character in the left margin indicates the mode this peer entry is operating in. A <tt>+</tt> denotes symmetric active, a <tt>-</tt> indicates symmetric passive, a <tt>=</tt> means the remote server is being polled in client mode, a <tt>^</tt> indicates that the server is broadcasting to this address, a <tt>~</tt> denotes that the remote peer is sending broadcasts and a <tt>*</tt> marks the peer the server is currently synchronizing to.</dd> 912b15cb3dSCy Schubert <dd>The contents of the host field may be one of four forms. It may be a host name, an IP address, a reference clock implementation name with its parameter or <tt>REFCLK(<i>implementation number</i>, <i>parameter</i>)</tt>. On <tt>hostnames no</tt> only IP-addresses will be displayed.</dd> 922b15cb3dSCy Schubert <dt><tt>dmpeers</tt></dt> 932b15cb3dSCy Schubert <dd>A slightly different peer summary list. Identical to the output of the <tt>peers</tt> command, except for the character in the leftmost column. Characters only appear beside peers which were included in the final stage of the clock selection algorithm. A <tt>.</tt> indicates that this peer was cast off in the falseticker detection, while a <tt>+</tt> indicates that the peer made it through. A <tt>*</tt> denotes the peer the server is currently synchronizing with.</dd> 942b15cb3dSCy Schubert <dt><tt>showpeer <i>peer_address</i> [...]</tt></dt> 952b15cb3dSCy Schubert <dd>Shows a detailed display of the current peer variables for one or more peers. Most of these values are described in the NTP Version 2 specification.</dd> 962b15cb3dSCy Schubert <dt><tt>pstats <i>peer_address</i> [...]</tt></dt> 972b15cb3dSCy Schubert <dd>Show per-peer statistic counters associated with the specified peer(s).</dd> 982b15cb3dSCy Schubert <dt><tt>clockstat <i>clock_peer_address</i> [...]</tt></dt> 992b15cb3dSCy Schubert <dd>Obtain and print information concerning a peer clock. The values obtained provide information on the setting of fudge factors and other clock performance information.</dd> 1002b15cb3dSCy Schubert <dt><tt>kerninfo</tt></dt> 1012b15cb3dSCy Schubert <dd>Obtain and print kernel phase-lock loop operating parameters. This information is available only if the kernel has been specially modified for a precision timekeeping function.</dd> 1022b15cb3dSCy Schubert <dt><tt>loopinfo [ oneline | multiline ]</tt></dt> 1032b15cb3dSCy Schubert <dd>Print the values of selected loop filter variables. The loop filter is the part of NTP which deals with adjusting the local system clock. The <tt>offset</tt> is the last offset given to the loop filter by the packet processing code. The <tt>frequency</tt> is the frequency error of the local clock in parts-per-million (ppm). The <tt>time_const</tt> controls the stiffness of the phase-lock loop and thus the speed at which it can adapt to oscillator drift. The <tt>watchdog timer</tt> value is the number of seconds which have elapsed since the last sample offset was given to the loop filter. The <tt>oneline</tt> and <tt>multiline</tt> options specify the format in which this information is to be printed, with <tt>multiline</tt> as the default.</dd> 1042b15cb3dSCy Schubert <dt><tt>sysinfo</tt></dt> 1052b15cb3dSCy Schubert <dd>Print a variety of system state variables, i.e., state related to the local server. All except the last four lines are described in the NTP Version 3 specification, RFC-1305.</dd> 1062b15cb3dSCy Schubert <dd>The <tt>system flags</tt> show various system flags, some of which can be set and cleared by the <tt>enable</tt> and <tt>disable</tt> configuration commands, respectively. These are the <tt>auth</tt>, <tt>bclient</tt>, <tt>monitor</tt>, <tt>pll</tt>, <tt>pps</tt> and <tt>stats</tt> flags. See the <tt>ntpd</tt> documentation for the meaning of these flags. There are two additional flags which are read only, the <tt>kernel_pll</tt> and <tt>kernel_pps</tt>. These flags indicate the synchronization status when the precision time kernel modifications are in use. The <tt>kernel_pll</tt> indicates that the local clock is being disciplined by the kernel, while the kernel_pps indicates the kernel discipline is provided by the PPS signal.</dd> 1072b15cb3dSCy Schubert <dd>Note that some directives, like <tt>enable pps</tt>, are only supported on certain versions of <tt>ntpd</tt>.</dd> 1082b15cb3dSCy Schubert <dd>The <tt>stability</tt> is the residual frequency error remaining after the system frequency correction is applied and is intended for maintenance and debugging. In most architectures, this value will initially decrease from as high as 500 ppm to a nominal value in the range .01 to 0.1 ppm. If it remains high for some time after starting the daemon, something may be wrong with the local clock, or the value of the kernel variable <tt>tick</tt> may be incorrect.</dd> 1092b15cb3dSCy Schubert <dd>The <tt>broadcastdelay</tt> shows the default broadcast delay, as set by the <tt>broadcastdelay</tt> configuration command.</dd> 1102b15cb3dSCy Schubert <dd>The <tt>authdelay</tt> shows the default authentication delay, as set by the <tt>authdelay</tt> configuration command.</dd> 1112b15cb3dSCy Schubert <dt><tt>sysstats</tt></dt> 1122b15cb3dSCy Schubert <dd>Print statistics counters maintained in the protocol module.</dd> 1132b15cb3dSCy Schubert <dt><tt>memstats</tt></dt> 1142b15cb3dSCy Schubert <dd>Print statistics counters related to memory allocation code.</dd> 1152b15cb3dSCy Schubert <dt><tt>iostats</tt></dt> 1162b15cb3dSCy Schubert <dd>Print statistics counters maintained in the input-output module.</dd> 1172b15cb3dSCy Schubert <dt><tt>timerstats</tt></dt> 1182b15cb3dSCy Schubert <dd>Print statistics counters maintained in the timer/event queue support code.</dd> 1192b15cb3dSCy Schubert <dt><tt>reslist</tt></dt> 1202b15cb3dSCy Schubert <dd>Obtain and print the server's restriction list. This list is (usually) printed in sorted order and may help to understand how the restrictions are applied.</dd> 1212b15cb3dSCy Schubert <dt><tt>ifstats</tt></dt> 122ea906c41SOllivier Robert <dd>List interface statistics for interfaces used by ntpd for network communication.</dd> 1232b15cb3dSCy Schubert <dt><tt>ifreload</tt></dt> 124ea906c41SOllivier Robert <dd>Force rescan of current system interfaces. Outputs interface statistics for interfaces that could possibly change. Marks unchanged interfaces with <b>.</b>, added interfaces with <b>+</b> and deleted interfaces with <b>-</b>.</dd> 1252b15cb3dSCy Schubert <dt><tt>monlist [ <i>version</i> ]</tt></dt> 1262b15cb3dSCy Schubert <dd>Obtain and print traffic counts collected and maintained by the monitor facility. The version number should not normally need to be specified. At most, 600 entries are displayed by <tt>monlist</tt>. To display the entire MRU list, use the <tt>ntpq</tt> program's <a href="ntpq.html#mrulist"><tt>mrulist</tt></a> command.</dd> 1272b15cb3dSCy Schubert <dt><tt>clkbug <i>clock_peer_address</i> [...]</tt></dt> 1282b15cb3dSCy Schubert <dd>Obtain debugging information for a reference clock driver. This information is provided only by some clock drivers and is mostly undecodable without a copy of the driver source in hand.</dd> 1299c2daa00SOllivier Robert</dl> 1309c2daa00SOllivier Robert<h4>Runtime Configuration Requests</h4> 131ea906c41SOllivier Robert<p>All requests which cause state changes in the server are authenticated by the server using a configured NTP key (the facility can also be disabled by the server by not configuring a key). The key number and the corresponding key must also be made known to <tt>ntpdc</tt>. This can be done using the keyid and passwd commands, the latter of which will prompt at the terminal for a password to use as the encryption key. You will also be prompted automatically for both the key number and password the first time a command which would result in an authenticated request to the server is given. Authentication not only provides verification that the requester has permission to make such changes, but also gives an extra degree of protection again transmission errors.</p> 1329c2daa00SOllivier Robert<p>Authenticated requests always include a timestamp in the packet data, which is included in the computation of the authentication code. This timestamp is compared by the server to its receive time stamp. If they differ by more than a small amount the request is rejected. This is done for two reasons. First, it makes simple replay attacks on the server, by someone who might be able to overhear traffic on your LAN, much more difficult. Second, it makes it more difficult to request configuration changes to your server from topologically remote hosts. While the reconfiguration facility will work well with a server on the local host, and may work adequately between time-synchronized hosts on the same LAN, it will work very poorly for more distant hosts. As such, if reasonable passwords are chosen, care is taken in the distribution and protection of keys and appropriate source address restrictions are applied, the run time reconfiguration facility should provide an adequate level of security.</p> 1339c2daa00SOllivier Robert<p>The following commands all make authenticated requests.</p> 1349c2daa00SOllivier Robert<dl> 1352b15cb3dSCy Schubert <dt><tt>addpeer <i>peer_address</i> [ <i>keyid</i> ] [ <i>version</i> ] [ <tt>minpoll# | prefer | minpoll <i>N</i> | <tt>maxpoll</tt> <i>N</i> [...] ]</tt></tt></dt> 1362b15cb3dSCy Schubert <dt><tt>addpeer <i>peer_address</i> [ <tt>prefer | minpoll <i>N</i> | <tt>maxpoll</tt> <i>N</i> | <tt>keyid</tt> <i>N</i> | <tt>version</tt> <i>N</i> [...] ]</tt></tt></dt> 1372b15cb3dSCy Schubert <dd>Add a configured peer association at the given address and operating in symmetric 1382b15cb3dSCy Schubert active mode. Note that an existing association with the same peer may be deleted when this 1392b15cb3dSCy Schubert command is executed, or may simply be converted to conform to the new configuration, as appropriate. If the <tt>keyid</tt> is nonzero, all outgoing packets to the remote server will have an authentication field attached encrypted with this key. If the value is 0 (or not given) no authentication will be done. If ntpdc's key number has not yet been set (<i>e.g.,</i> by the keyid command), it will be set to this value. The <tt>version#</tt> can be 1 through 4 and defaults to 3. The remaining options are either a numeric value for <tt>minpoll</tt> or literals <tt>prefer</tt>, <tt>burst</tt>, <tt>minpoll </tt><i>N</i>, <tt>keyid </tt><i>N</i>, <tt>version </tt> <i>N</i>, or <tt>maxpoll </tt><i>N</i> (where <i>N</i> is a numeric value), and have the action as specified in the <tt>peer</tt> configuration file command of 1402b15cb3dSCy Schubert ntpd. See the <a href="confopt.html">Server Options</a> page for further information. Each flag (or its absence) replaces the previous setting. The <tt>prefer</tt> keyword indicates a preferred peer (and thus will be used primarily for clock synchronisation if possible). The preferred peer also determines the validity of the PPS signal - if the preferred peer is suitable for synchronisation so is the PPS signal. The <tt>dynamic</tt> keyword allows association configuration even when no suitable network interface is found at configuration time. The dynamic interface update mechanism may complete the configuration when new interfaces appear (e.g. WLAN/PPP interfaces) at a later time and thus render the association operable.</dd> 1412b15cb3dSCy Schubert <dt><tt>addserver <i>peer_address</i> [ <i>address</i> [ <i>keyid</i> ] [ <i>version</i> ] [ minpoll | prefer | iburst | burst | minpoll <i>N</i> | maxpoll <i>N</i> [...] ] prefer | iburst | burst | minpoll <i>N</i> | maxpoll <i>N</i> | keyid <i>N</i> | version <i>N</i> [...] ]</tt></dt> 1422b15cb3dSCy Schubert <dd>Identical to the addpeer command, except that the operating mode is client.</dd> 1432b15cb3dSCy Schubert <dt><tt>broadcast <i>peer_address</i> [ <i>keyid</i> ] [ <i>version</i> ] [ <i>prefer</i> ]</tt></dt> 1442b15cb3dSCy Schubert <dd>Identical to the addpeer command, except that the operating mode is broadcast. In this case a valid non-zero key identifier and key are required. The <tt>peer_address</tt> parameter can be the broadcast address of the local network or a multicast group address assigned to NTP. If a multicast address, a multicast-capable kernel is required.</dd> 1452b15cb3dSCy Schubert <dt><tt>unconfig <i>peer_address</i> [...]</tt></dt> 1462b15cb3dSCy Schubert <dd>This command causes the configured bit to be removed from the specified peer(s). In many cases this will cause the peer association to be deleted. When appropriate, however, the association may persist in an unconfigured mode if the remote peer is willing to continue on in this fashion.</dd> 1472b15cb3dSCy Schubert <dt><tt>fudge <i>peer_address</i> [ <i>time1</i> ] [ <i>time2</i> ] [ <i>stratum</i> ] [ <i>refid</i> ]</tt></dt> 1482b15cb3dSCy Schubert <dd>This command provides a way to set certain data for a reference clock. See the source listing for further information.</dd> 1499c2daa00SOllivier Robert <dt><tt>enable [ auth | bclient | calibrate | kernel | monitor | ntp | pps | stats]</tt><br> 1502b15cb3dSCy Schubert <tt>disable [ auth | bclient | calibrate | kernel | monitor | ntp | pps | stats]</tt></dt> 1512b15cb3dSCy Schubert <dd>These commands operate in the same way as the <tt>enable</tt> and <tt>disable</tt> configuration file commands of <tt>ntpd</tt>. See the <a href="miscopt.html">Miscellaneous Options</a> page for further information.</dd> 1522b15cb3dSCy Schubert <dt><tt>restrict <i>address mask flag</i> [ <i>flag</i> ]</tt></dt> 1532b15cb3dSCy Schubert <dd>This command operates in the same way as the <tt>restrict</tt> configuration file commands of <tt>ntpd</tt>.</dd> 1542b15cb3dSCy Schubert <dt><tt>unrestrict <i>address mask flag</i> [ <i>flag</i> ]</tt></dt> 1552b15cb3dSCy Schubert <dd>Unrestrict the matching entry from the restrict list.</dd> 1562b15cb3dSCy Schubert <dt><tt>delrestrict <i>address mask [ ntpport ]</i></tt></dt> 1572b15cb3dSCy Schubert <dd>Delete the matching entry from the restrict list.</dd> 1582b15cb3dSCy Schubert <dt><tt>readkeys</tt></dt> 1592b15cb3dSCy Schubert <dd>Causes the current set of authentication keys to be purged and a new set to be obtained by rereading the keys file (which must have been specified in the <tt>ntpd</tt> configuration file). This allows encryption keys to be changed without restarting the server.</dd> 1602b15cb3dSCy Schubert <dt><tt>trustedkey <i>keyid</i> [...]</tt></dt> 1612b15cb3dSCy Schubert <dt><tt>untrustedkey <i>keyid</i> [...]</tt></dt> 1622b15cb3dSCy Schubert <dd>These commands operate in the same way as the <tt>trustedkey</tt> and <tt>untrustedkey</tt> configuration file commands of <tt>ntpd</tt>.</dd> 1632b15cb3dSCy Schubert <dt><tt>authinfo</tt></dt> 1642b15cb3dSCy Schubert <dd>Returns information concerning the authentication module, including known keys and counts of encryptions and decryptions which have been done.</dd> 1652b15cb3dSCy Schubert <dt><tt>traps</tt></dt> 1662b15cb3dSCy Schubert <dd>Display the traps set in the server. See the source listing for further information.</dd> 1672b15cb3dSCy Schubert <dt><tt>addtrap [ <i>address</i> [ <i>port</i> ] [ <i>interface</i> ]</tt></dt> 1682b15cb3dSCy Schubert <dd>Set a trap for asynchronous messages. See the source listing for further information.</dd> 1692b15cb3dSCy Schubert <dt><tt>clrtrap [ <i>address</i> [ <i>port</i> ] [ <i>interface</i>]</tt></dt> 1702b15cb3dSCy Schubert <dd>Clear a trap for asynchronous messages. See the source listing for further information.</dd> 1712b15cb3dSCy Schubert <dt><tt>reset</tt></dt> 1722b15cb3dSCy Schubert <dd>Clear the statistics counters in various modules of the server. See the source listing for further information.</dd> 1739c2daa00SOllivier Robert</dl> 1749c2daa00SOllivier Robert<h4>Bugs</h4> 1759c2daa00SOllivier Robert<p><tt>ntpdc</tt> is a crude hack. Much of the information it shows is deadly boring and could only be loved by its implementer. The program was designed so that new (and temporary) features were easy to hack in, at great expense to the program's ease of use. Despite this, the program is occasionally useful.</p> 1769c2daa00SOllivier Robert<hr> 1779c2daa00SOllivier Robert<script type="text/javascript" language="javascript" src="scripts/footer.txt"></script> 1789c2daa00SOllivier Robert</body> 1799c2daa00SOllivier Robert</html> 180
