iputils, dosfstools python-lxml in main

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+.\" This manpage has been automatically generated by docbook2man 
+.\" from a DocBook document.  This tool can be found at:
+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> 
+.\" Please send any bug reports, improvements, comments, patches, 
+.\" etc. to Steve Cheng <steve@ggi-project.org>.
+.TH "CLOCKDIFF" "8" "24 Mayıs 2011" "iputils-101006" "System Manager's Manual: iputils"
+.SH NAME
+clockdiff \- measure clock difference between hosts
+.SH SYNOPSIS
+
+\fBclockdiff\fR [ \fB-o\fR]  [ \fB-o1\fR]  \fB\fIdestination\fB\fR
+
+.SH "DESCRIPTION"
+.PP
+\fBclockdiff\fR Measures clock difference between us and
+\fIdestination\fR with 1 msec resolution using ICMP TIMESTAMP
+[2]
+packets or, optionally, IP TIMESTAMP option
+[3]
+option added to ICMP ECHO.
+[1]
+.SH "OPTIONS"
+.TP
+\fB-o\fR
+Use IP TIMESTAMP with ICMP ECHO instead of ICMP TIMESTAMP
+messages. It is useful with some destinations, which do not support
+ICMP TIMESTAMP (f.e. Solaris <2.4).
+.TP
+\fB-o1\fR
+Slightly different form of \fB-o\fR, namely it uses three-term
+IP TIMESTAMP with prespecified hop addresses instead of four term one.
+What flavor works better depends on target host. Particularly,
+\fB-o\fR is better for Linux.
+.SH "WARNINGS"
+.TP 0.2i
+\(bu
+Some nodes (Cisco) use non-standard timestamps, which is allowed
+by RFC, but makes timestamps mostly useless.
+.TP 0.2i
+\(bu
+Some nodes generate messed timestamps (Solaris>2.4), when
+run \fBxntpd\fR. Seems, its IP stack uses a corrupted clock source,
+which is synchronized to time-of-day clock periodically and jumps
+randomly making timestamps mostly useless. Good news is that you can
+use NTP in this case, which is even better.
+.TP 0.2i
+\(bu
+\fBclockdiff\fR shows difference in time modulo 24 days.
+.SH "SEE ALSO"
+.PP
+\fBping\fR(8),
+\fBarping\fR(8),
+\fBtracepath\fR(8).
+.SH "REFERENCES"
+.PP
+[1] ICMP ECHO,
+RFC0792, page 14.
+.PP
+[2] ICMP TIMESTAMP,
+RFC0792, page 16.
+.PP
+[3] IP TIMESTAMP option,
+RFC0791, 3.1, page 16.
+.SH "AUTHOR"
+.PP
+\fBclockdiff\fR was compiled by
+Alexey Kuznetsov
+<kuznet@ms2.inr.ac.ru>. It was based on code borrowed
+from BSD \fBtimed\fR daemon.
+It is now maintained by
+YOSHIFUJI Hideaki
+<yoshfuji@skbuff.net>.
+.SH "SECURITY"
+.PP
+\fBclockdiff\fR requires CAP_NET_RAWIO capability
+to be executed. It is safe to be used as set-uid root.
+.SH "AVAILABILITY"
+.PP
+\fBclockdiff\fR is part of \fIiputils\fR package
+and the latest versions are  available in source form at
+http://www.skbuff.net/iputils/iputils-current.tar.bz2.