1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
#!@@PERL@@ -w
# -*- perl -*-
# Plugin to monitor usage of bind 9 servers using rndc stats
#
# Contributed by Laurent Facq 15/06/2004
# Based on Nicolai Langfeldt bind9 plugin
# Reworked by Dagfinn Ilmari Mannsåker
#
# To intall, put
#
# statistics-file "/var/run/named.stats";
#
# in the options part of your named.conf or set the querystats variable
# (see below) to where your named puts the statistics file by default.
#
# You must also make sure the rndc.key file is readable by the plugin.
#
# Environment variables:
# rndc location of the rndc command.
# set to empty if the stats are updated otherwise
# querystats location of the statistics file
#
# $Log$
# Revision 1.5 2004/12/15 18:05:40 ilmari
# - Don't use a state file (the statistics file is enough).
# - Make rndc and statistics file location configurable.
# - Linearize control flow.
# - General style cleanup.
#
#
#%# family=contrib
use strict;
my $rndc = defined($ENV{rndc}) ? $ENV{rndc} : '/usr/sbin/rndc';
my $querystats = $ENV{querystats} || '/var/run/named.stats';
my %IN;
system("$rndc stats") if $rndc;
open(my $stats, '<', $querystats) or die "$querystats: $!\n";
seek($stats , 400, -1); # go nearly to the end of the file
# to avoid reading it all
while (my $line = <$stats>) {
chomp $line;
# We want the last block like this in the file
#+++ Statistics Dump +++ (1087277501)
#success 106183673
#referral 2103636
#nxrrset 43534220
#nxdomain 47050478
#recursion 37303997
#failure 17522313
#--- Statistics Dump --- (1087277501)
if ($line =~ m/\+\+\+ Statistics Dump \+\+\+/) {
# reset
undef %IN;
} else {
my ($what, $nb)= split('\s+', $line);
if ($what && ($what ne '---')) {
$IN{$what} = $nb;
}
}
}
close($stats);
if (defined($ARGV[0]) and ($ARGV[0] eq 'config')) {
print "graph_title DNS Queries by status\n";
print "graph_vlabel queries / \${graph_period}\n";
for my $key (keys %IN) {
print "query_$key.label $key\n";
print "query_$key.type DERIVE\n";
print "query_$key.min 0\n";
}
} else {
print "query_$_.value $IN{$_}\n" for keys %IN;
}
|
