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.\" Avoid warning from groff about undefined register 'F'.
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.de IX
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..
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.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
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\{\
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.\" ========================================================================
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.\"
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.IX Title "MRTG-LOGFILE 1"
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.TH MRTG-LOGFILE 1 "2018-07-13" "2.17.7" "mrtg"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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mrtg\-logfile \- description of the mrtg\-2 logfile format
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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This document provides a description of the contents of
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the mrtg\-2 logfile.
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.SH "OVERVIEW"
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.IX Header "OVERVIEW"
|
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The logfile consists of two main sections.
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.IP "The first Line" 4
|
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.IX Item "The first Line"
|
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It stores the traffic counters from the most recent run of mrtg.
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.IP "The rest of the File" 4
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.IX Item "The rest of the File"
|
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Stores past traffic rate averates and maxima at increassing
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intervals.
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.PP
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|
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The first number on each line is a unix time stamp. It represents
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the number of seconds since 1970.
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.SH "DETAILS"
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.IX Header "DETAILS"
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.SS "The first Line"
|
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.IX Subsection "The first Line"
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The first line has 3 numbers which are:
|
|
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.IP "A (1st column)" 4
|
|
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.IX Item "A (1st column)"
|
|
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A timestamp of when \s-1MRTG\s0 last ran for this interface. The timestamp is the
|
|
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number of non-skip seconds passed since the standard \s-1UNIX \s0\*(L"epoch\*(R" of midnight
|
|
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on 1st of January 1970 \s-1GMT.\s0
|
|
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.IP "B (2nd column)" 4
|
|
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.IX Item "B (2nd column)"
|
|
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The \*(L"incoming bytes counter\*(R" value.
|
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.IP "C (3rd column)" 4
|
|
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.IX Item "C (3rd column)"
|
|
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The \*(L"outgoing bytes counter\*(R" value.
|
|
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.SS "The rest of the File"
|
|
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.IX Subsection "The rest of the File"
|
|
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The second and remaining lines of the file contains 5 numbers
|
|
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which are:
|
|
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.IP "A (1st column)" 4
|
|
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.IX Item "A (1st column)"
|
|
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The Unix timestamp for the point in time the data on this line is relevant.
|
|
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Note that the interval between timestamps increases as you progress through the
|
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file. At first it is 5 minutes and at the end it is one day between two lines.
|
|
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.Sp
|
|
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This timestamp may be converted in OpenOffice Calc or \s-1MS\s0 Excel by using the
|
|
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667938 |
following formula
|
|
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667938 |
.Sp
|
|
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.Vb 1
|
|
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\& =(x+y)/86400+DATE(1970;1;1)
|
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.Ve
|
|
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.Sp
|
|
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(instead of \*(L";\*(R" it may be that you have to use \*(L",\*(R" this depends on the context and your locale settings)
|
|
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.Sp
|
|
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you can also ask perl to help by typing
|
|
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.Sp
|
|
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.Vb 1
|
|
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\& perl \-e \*(Aqprint scalar localtime(x),"\en"\*(Aq
|
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.Ve
|
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.Sp
|
|
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\&\fBx\fR is the unix timestamp and \fBy\fR is the offset in seconds
|
|
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from \s-1UTC. \s0(Perl knows \fBy\fR).
|
|
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.IP "B (2nd column)" 4
|
|
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.IX Item "B (2nd column)"
|
|
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The average incoming transfer rate in bytes per second. This is valid
|
|
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for the time between the A value of the current line and the A value of the
|
|
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previous line.
|
|
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.IP "C (3rd column)" 4
|
|
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.IX Item "C (3rd column)"
|
|
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The average outgoing transfer rate in bytes per second since the previous
|
|
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measurement.
|
|
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.IP "D (4th column)" 4
|
|
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.IX Item "D (4th column)"
|
|
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The maximum incoming transfer rate in bytes per second for the current
|
|
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667938 |
interval. This is calculated from all the updates which have occured in the
|
|
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current interval. If the current interval is 1 hour, and updates have
|
|
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occured every 5 minutes, it will be the biggest 5 minute transfer rate seen
|
|
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during the hour.
|
|
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667938 |
.IP "E (5th column)" 4
|
|
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.IX Item "E (5th column)"
|
|
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The maximum outgoing transfer rate in bytes per second for the current interval.
|
|
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667938 |
.SH "AUTHOR"
|
|
Packit |
667938 |
.IX Header "AUTHOR"
|
|
Packit |
667938 |
Butch Kemper <kemper@bihs.net> and
|
|
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667938 |
Tobias Oetiker <tobi@oetiker.ch>
|