/usr/share/munin/plugins/snmp__users is in munin-plugins-core 2.0.19-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | #!/usr/bin/perl -w
# -*- perl -*-
# vim: ft=perl
=head1 NAME
snmp__users - Munin plugin to check the number of logged in users on an
SNMP device.
=head1 APPLICABLE SYSTEMS
Any SNMP-capable device that reports the
HOST-RESOURCES-MIB::hrSystemNumUsers.0 OID.
=head1 CONFIGURATION
As a rule SNMP plugins need site specific configuration. The default
configuration (shown here) will only work on insecure sites/devices.
[snmp_*]
env.version 2
env.community public
In general SNMP is not very secure at all unless you use SNMP version
3 which supports authentication and privacy (encryption). But in any
case the community string for your devices should not be "public".
Please see 'perldoc Munin::Plugin::SNMP' for further configuration
information.
=head1 INTERPRETATION
The number of user sessions for which this host is storing state
information. A session is a collection of processes requiring a
single act of user authentication and possibly subject to collective
job control.
=head1 MIB INFORMATION
This plugin requires support for the HOST-RESOURCES-MIB (RFC 2790). It
reports the contents of the hrSystemNumUsers.0 OID.
=head1 MAGIC MARKERS
#%# family=snmpauto
#%# capabilities=snmpconf
=head1 VERSION
$Id$
=head1 BUGS
None known.
=head1 AUTHOR
Copyright (C) 2004 Jimmy Olsen, Dagfinn Ilmari Mannsaaker
Documented and updated to use Munin::Plugin::SNMP by Matthew Boyle.
=head1 LICENSE
GPLv2.
=cut
use strict;
use Munin::Plugin::SNMP;
if (defined $ARGV[0] and $ARGV[0] eq 'snmpconf') {
# .iso.org.dod.internet.mgmt.mib-2.host.hrSystem.hrSystemNumUsers.0
print "require 1.3.6.1.2.1.25.1.5.0 [0-9]\n"; # Number
exit 0;
}
if (defined $ARGV[0] and $ARGV[0] eq "config") {
my ($host) = Munin::Plugin::SNMP->config_session();
print "host_name $host\n" unless $host eq 'localhost';
print <<"EOC";
graph_title Number of users
graph_args --base 1000 -l 0
graph_vlabel number of users
graph_scale no
graph_category system
graph_info This graph shows the number of users currently logged in to the system.
users.label users
users.draw LINE2
users.info Number of users
EOC
exit 0;
}
my $session = Munin::Plugin::SNMP->session();
print "users.value ", $session->get_single('1.3.6.1.2.1.25.1.5.0'), "\n";
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