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From: Yoshishige Arai <ryo2@on.rim.or.jp>
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Subject: [man-jp-reviewer 431] ntptrace.8
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$B$"$i$$$G$9!#(B
ntptrace.8 $B$G$9!#(B

$B5$$K$J$C$?$H$3$m$rFsE@!#86J8$G(B

(as measured by
.Nm Ns ;
$B$H$J$C$F$$$k$H$3$m$r!"6l$7$^$.$l$G(B
(
.Nm Ns $B$K$h$C$FB,Dj$5$l$?$b$N(B;

$B$H$7$^$7$?$,!"$3$l$r@07A$9$k$H!V(Bntptrace$B$K$h$C$FB,Dj$5$l$?$b$N!W$N(B
'e' $B$H(B '$B$K(B' $B$,$/$C$D$$$FI=<($5$l$^$9!#$3$l$O;EJ}$,$J$$$b$N$G$7$g$&$+!#(B
$B$=$l$H$b!"JL$J%^%/%m$G$&$^$/$d$l$k$G$7$g$&$+!#(B
$B$=$l$+$i(B timeout $B$NLu8l$r(B "$B@)8B;~4V(B" $B$H$J$C$F$$$?$N$O!">/!9H=$j$K$/$$(B
$B5$$,$7$?$N$G$9$,!"JR2>L>$G(B "$B%?%$%`%"%&%H(B" $B$H$7$F$O$^$:$$$G$7$g$&$+!)(B


$BF|K\8l$NJQ992U=j$O0J2<$G$9!#(B

$B86J8(B 43$B9TL\(B
(Synchronization distance is a measure of the
goodness of the clock's time.)
($BF14|5wN%$H$$$&$N$O!";~7W$N;~9o$NNI$5$NB,EY$G$9!#(B)
=>($BF14|5wN%$H$O!";~7W$N;~9o$N@:EY$rB,$C$?$b$N$G$9!#(B)

$B86J8(B 51$B9TL\(B
Turn off the printing of host names;
$B%[%9%HL>$N0u:~$r%*%U$K$7$^$9(B;
=>$B%[%9%HL>$NI=<($r%*%U$K$7$^$9(B;

$B86J8(B 52$B9TL\(B
This may be necessary if a nameserver is down.
$BI,MW$K$J$k$+$b$7$l$^$;$s!#(B=> $BI,MW$K$J$k$G$7$g$&!#(B
$B!t(B $B<B:]$K$O!"I,$:I,MW$K$J$k$+$i!#(B

$B86J8(B 54, 56$B9TL\(B
$B3F%[%9%H$KBP$9$k:FAw?.$N2s?t$r%;%C%H$7$^$9!#%G%U%)%k%H(B = 5
=>$B%[%9%HKh$N:FAw?.$N2s?t$r%;%C%H$7$^$9!#%G%U%)%k%H$O(B 5 $B$G$9!#(B
$B:FAw?.$N@)8B;~4V(B ($BICC10L(B) $B$r%;%C%H$7$^$9!#%G%U%)%k%H(B = 2$B!#(B
=>$B:FAw?.$N@)8B;~4V(B ($BICC10L(B) $B$r%;%C%H$7$^$9!#%G%U%)%k%H(B $B$O(B 2 $B$G$9!#(B

$B86J8(B $B:G=*9T(B
This program makes no attempt to improve accuracy by doing multiple
samples.
$B$3$N%W%m%0%i%`$O!"J#?t$NI8K\$r<h$C$F@53N$5$rA}$9$h$&$J;n$_$r$7$^$;$s!#(B
=>$B$3$N%W%m%0%i%`$O!"J#?t$NI8K\$r<h$C$F@:EY$r9b$a$k$h$&$J;n$_$r$7$^$;$s!#(B


$B:9J,$O$[$H$s$IA4It$K$J$C$F8+$K$/$$$N$G!"0J2<8=J*$$$-$^$9!#(B

.\"
.\"	$Id: ntptrace.8,v 1.2 1998/02/19 08:05:40 charnier Exp $
.\" jpman %Id: ntptrace.8,v 1.3 1997/09/12 02:34:26 seki Stab %
.\"
.Dd December 21, 1993
.Dt NTPTRACE 8
.Os
.Sh $BL>>N(B
.Nm ntptrace
.Nd "NTP $B%[%9%HO":?$r$?$I$j%^%9%?;~9o%=!<%9$^$GDI@W$9$k(B"
.Sh $B=q<0(B
.Nm ntptrace
.Op Fl vdn
.Op Fl r Ar retries
.Op Fl t Ar timeout
.Op Ar server
.Sh $B2r@b(B
.Nm ntptrace
$B$O!"M?$($i$l$?(B
$B%M%C%H%o!<%/%?%$%`%W%m%H%3%k(B (NTP) $B%5!<%P$,(B
$B$I$3$+$i;~9o$r<hF@$9$k$N$+$r7hDj$7!"(B
NTP $B%5!<%P$NO":?$r$?$I$C$F%^%9%?;~9o%=!<%9$^$GLa$j$^$9!#(B
$B0z?t$,M?$($i$l$J$+$C$?$H$-$O!"(B
.Dq localhost
$B$+$i;O$a$^$9!#(B
.Pp
$B0J2<$O!"(B
.Nm Ns $B$N=PNO$NNc$G$9!#(B
.Bd -literal
% ntptrace
localhost: stratum 4, offset 0.0019529, synch distance 0.144135
server2.bozo.com: stratum 2, offset 0.0124263, synch distance 0.115784
h.edu: stratum 1, offset 0.0019298, synch distance 0.011993, refid 'WWVB'
.Ed
.Pp
$B3F9T$N%U%#!<%k%I$O(B ($B:8$+$i1&$X(B) $B<!$N$h$&$K$J$j$^$9(B:
$B%[%9%HL>!"%[%9%H$N3,AX(B (stratum)$B!"(B
$B$=$N%[%9%H$H%m!<%+%k%[%9%H$N4V$N;~9o$N$:$l(B (offset) 
(
.Nm Ns $B$K$h$C$FB,Dj$5$l$?$b$N(B;
$B$3$l$,(B
.Dq localhost 
$B$KBP$7$F$$$D$b(B 0 $B$K$J$k$H$O8B$i$J$$M}M3$G$9(B )$B!"(B
$B%[%9%H$N(B
.Dq $BF14|5wN%(B
(synch distance)$B!"(B
$B$=$7$F!"(B($B3,AX$,(B 1 $B$N%5!<%P$N$_$G$9$,(B) $B;2>H;~7W(B ID $B!#(B
$B$9$Y$F$N;~4V$OICC10L$G$9!#(B
($BF14|5wN%$H$O!";~7W$N;~9o$N@:EY$rB,$C$?$b$N$G$9!#(B)
.Sh $B%*%W%7%g%s(B
$B0J2<$N%*%W%7%g%s$,;H$($^$9!#(B
.Bl -tag -width indent
.It Fl d
$B%G%P%C%0=PNO$r%*%s$K$7$^$9!#(B
.It Fl n
$B%[%9%HL>$NI=<($r%*%U$K$7$^$9(B; $BBe$o$j$K!"%[%9%H$N(B IP $B%"%I%l%9$,(B
$BI=<($5$l$^$9!#$3$l$O!"%M!<%`%5!<%P$,Mn$A$F$$$k$H$-$KI,MW$K$J$k$G$7$g$&!#(B
.It Fl r Ar retries
$B%[%9%HKh$N:FAw?.$N2s?t$r%;%C%H$7$^$9!#%G%U%)%k%H$O(B 5 $B$G$9!#(B
.It Fl t Ar timeout
$B:FAw?.$N@)8B;~4V(B ($BICC10L(B) $B$r%;%C%H$7$^$9!#%G%U%)%k%H(B $B$O(B 2 $B$G$9!#(B
.It Fl v
NTP $B%5!<%P$K4X$9$k>\:Y$J>pJs$r=PNO$7$^$9!#(B
.El
.Sh $B4XO"9`L\(B
.Xr xntpd 8 ,
.Xr xntpdc 8
.Sh $B%P%0(B
$B$3$N%W%m%0%i%`$O!"J#?t$NI8K\$r<h$C$F@:EY$r9b$a$k$h$&$J;n$_$r$7$^$;$s!#(B
