diff --git a/usr.sbin/ntp/doc/ntpdate.8 b/usr.sbin/ntp/doc/ntpdate.8 index 5c505906e150..7ff96da49200 100644 --- a/usr.sbin/ntp/doc/ntpdate.8 +++ b/usr.sbin/ntp/doc/ntpdate.8 @@ -22,21 +22,21 @@ .Em Note : The functionality of this program is now available in the -.Xr ntpd 8 +.Xr ntpd 8 program. See the -.Fl q +.Fl q command line option in the -.Xr ntpd 8 +.Xr ntpd 8 page. After a suitable period of mourning, the -.Nm +.Nm program is to be retired from this distribution. .Pp -.Nm +.Nm sets the local date and time by polling the Network Time Protocol (NTP) server(s) given as the .Ar server @@ -48,7 +48,7 @@ servers specified and a subset of the NTP clock filter and selection algorithms are applied to select the best of these. Note that the accuracy and reliability of -.Nm +.Nm depends on the number of servers, the number of polls each time it is run and the interval between runs. @@ -58,7 +58,7 @@ The following options are available: .It Fl a Ar key Enable the authentication function and specify the key identifier to be used for authentication as the argument -.Ar key +.Ar key . The keys and key identifiers must match in both the client and server key files. The default is to disable @@ -74,9 +74,9 @@ default is to step the time using if the offset is greater than +-128 ms. Note that, if the offset is much greater -than +-128 ms in this case, that it can take a long time (hours) to +than +-128 ms in this case, it can take a long time (hours) to slew the clock to the correct value. -During this time. the host +During this time, the host should not be used to synchronize clients. .It Fl b Force the time to be stepped using the @@ -89,7 +89,7 @@ This option should be used when called from a startup file at boot time. .It Fl d Enable the debugging mode, in which -.Nm +.Nm will go through all the steps, but not adjust the local clock. Information @@ -100,7 +100,7 @@ function as the value .Ar authdelay , in seconds and fraction (see -.Xr ntpd 8 +.Xr ntpd 8 for details). This number is usually small enough to be negligible for most purposes, though specifying a @@ -112,14 +112,14 @@ The default is .Pa /etc/ntp.keys . This file should be in the format described in -.Xr ntpd 8 . +.Xr ntpd 8 . .It Fl o Ar version Specify the NTP version for outgoint packets as the integer .Ar version , which can be 1 or 2. The default is 3. This allows -.Nm +.Nm to be used with older NTP versions. .It Fl p Ar samples Specify the number of samples to be acquired from each server @@ -132,31 +132,31 @@ Query only - don't set the clock. .It Fl s Divert logging output from the standard output (default) to the system -.Xr syslog 3 +.Xr syslog 3 facility. This is designed primarily for convenience of -.Xr cron 8 +.Xr cron 8 scripts. .It Fl t Ar timeout Specify the maximum time waiting for a server response as the value .Ar timeout , in seconds and fraction. -The value is is +The value is rounded to a multiple of 0.2 seconds. The default is 1 second, a value suitable for polling across a LAN. .It Fl u Direct -.Nm -to use an unprivileged port or outgoing +.Nm +to use an unprivileged port for outgoing packets. This is most useful when behind a firewall that blocks incoming traffic to privileged ports, and you want to synchronise with hosts beyond the firewall. Note that the -.Fl d +.Fl d option always uses unprivileged ports. .It Fl v @@ -167,43 +167,43 @@ version identification string to be logged. .El .Pp -.Nm +.Nm can be run manually as necessary to set the host clock, or it can be run from the host startup script to set the clock at boot time. This is useful in some cases to set the clock initially before starting the NTP daemon -.Xr ntpd 8 . +.Xr ntpd 8 . It is also possible to run -.Nm +.Nm from a -.Xr cron 8 +.Xr cron 8 script. However, it is important to note that -.Nm +.Nm with contrived -.Xr cron 8 +.Xr cron 8 scripts is no substitute for the NTP daemon, which uses sophisticated algorithms to maximize accuracy and reliability while minimizing resource use. Finally, since -.Nm +.Nm does not discipline the host clock frequency as does -.Xr ntpd 8 , +.Xr ntpd 8 , the accuracy using -.Nm +.Nm is limited. .Pp Time adjustments are made by -.Nm +.Nm in one of two ways. If -.Nm +.Nm determines the clock is in error more than 0.5 second it will simply step the time by calling the system .Xr settimeofday 2 @@ -215,22 +215,22 @@ routine. The latter technique is less disruptive and more accurate when the error is small, and works quite well when -.Nm +.Nm is run by -.Xr cron 8 +.Xr cron 8 every hour or two. .Pp -.Nm +.Nm will decline to set the date if an NTP server daemon (e.g., -.Xr ntpd 8 ) +.Xr ntpd 8 ) is running on the same host. When running -.Nm +.Nm on a regular basis from -.Xr cron 8 +.Xr cron 8 as an alternative to running a daemon, doing so once every hour or two will result in precise enough timekeeping to avoid stepping the @@ -239,12 +239,12 @@ clock. If NetInfo support is compiled into .Nm , then the -.Ic server +.Ic server argument is optional if -.Nm +.Nm can find a time server in the NetInfo configuration for -.Xr ntpd 8 . +.Xr ntpd 8 . .Sh FILES .Bl -tag -width /etc/ntp.keys -compact .It Pa /etc/ntp.keys diff --git a/usr.sbin/ntp/doc/ntpdc.8 b/usr.sbin/ntp/doc/ntpdc.8 index febd02ddf4bd..bca7479255e1 100644 --- a/usr.sbin/ntp/doc/ntpdc.8 +++ b/usr.sbin/ntp/doc/ntpdc.8 @@ -130,7 +130,7 @@ 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 -.Ql \&; , +.Ql \&> , followed by a file name, to the command line. .Pp A number of interactive format commands are executed entirely @@ -378,7 +378,7 @@ signal. The .Sq stability is the residual frequency error remaining -afterthe system frequency correction is applied and is intended for +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 @@ -391,7 +391,7 @@ may be incorrect. .Pp The -.Ic broadcastdelay +.Sq broadcastdelay shows the default broadcast delay, as set by the .Ic broadcastdelay @@ -425,7 +425,7 @@ Obtain and print traffic counts collected and maintained by the monitor facility. The version number should not normally need to be specified. -.It Ic clkbug clock_peer_address ... +.It Ic clkbug Ar clock_peer_address ... Obtain debugging information for a reference clock driver. This information is provided only by some clock drivers and is mostly @@ -548,8 +548,8 @@ is willing to continue on in this fashion. This command provides a way to set certain data for a reference clock. See the source listing for further information. -.It enable Ar flag ... -.It disable Ar flag ... +.It Ic enable Ar flag ... +.It Ic disable Ar flag ... These commands operate in the same way as the .Ic enable and diff --git a/usr.sbin/ntp/doc/ntpq.8 b/usr.sbin/ntp/doc/ntpq.8 index 717a8e2afec3..d47afbd1348c 100644 --- a/usr.sbin/ntp/doc/ntpq.8 +++ b/usr.sbin/ntp/doc/ntpq.8 @@ -113,7 +113,7 @@ 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 -.Ql \&< , +.Ql \&> , followed by a file name, to the command line. A number of interactive format commands are executed entirely within @@ -322,7 +322,7 @@ in The index is then of use when dealing with stupid servers which use association identifiers which are hard for humans to type, in that for any subsequent commands which require an -association identifier as an argument, the form and index may be +association identifier as an argument, the form of index may be used as an alternative. .It Xo Ic clockvar Op Ar assocID .Oo @@ -411,7 +411,7 @@ An old form of the .Ic peers command with the reference ID replaced by the local interface address. -.It Ic passocations +.It Ic passociations Displays association data concerning in-spec peers from the internally cached list of associations. This command performs @@ -455,14 +455,14 @@ further consideration. The peer is discarded by the clustering algorithm as an outlyer. .It \&+ -.Pq candidat +.Pq candidate The peer is a survivor and a candidate for the combining algorithm. .It \&# .Pq selected The peer is a survivor, but not among the first six peers sorted by synchronization distance. -If the assocation is ephemeral, +If the association is ephemeral, it may be demobilized to conserve resources. .It \&* .Pq peer @@ -471,7 +471,7 @@ variables to the system variables. .It o .Pq (pps.peer) The peer has been declared the system peer and lends its -variables to thesystem variables. +variables to the system variables. However, the actual system synchronization is derived from a pulse-per-second (PPS) signal, either indirectly via the PPS reference clock driver or directly @@ -688,7 +688,7 @@ association. The names and values of the peer variables returned will be printed. Note that the status word from the header is -displayed preceding the variables, both in hexidecimal and in +displayed preceding the variables, both in hexadecimal and in pidgeon English. .It Ic readlist Ar assocID .It Ic rl Ar assocID