mirror of
https://github.com/munin-monitoring/contrib.git
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96 lines
2.1 KiB
Bash
Executable file
96 lines
2.1 KiB
Bash
Executable file
#!/bin/sh
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: <<EOF
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=head1 NAME
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tcp - Plugin to monitor IPV4/6 TCP socket status on a Linux host.
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=head1 AUTHOR
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Copyright 2009 Tim Small <tim@seoss.co.uk>
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=head1 LICENSE
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GPLv2
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=begin comment
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 dated June, 1991.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA.
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=end comment
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=head1 MAGIC MARKERS
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#%# family=manual
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#%# capabilities=autoconf
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=cut
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EOF
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case $1 in
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config)
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cat <<EOF
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graph_title TCP
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graph_vlabel TCP Sockets
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graph_category network
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graph_args -l 0
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graph_info TCP socket states for the local machine
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EOF
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for i in established syn_sent syn_recv fin_wait1 \
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fin_wait2 time_wait close close_wait last_ack \
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listen closing
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do
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echo ${i}.label $i
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echo ${i}.draw LINE2
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echo ${i}.info Sockets in state $i
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done
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exit 0
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;;
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autoconf)
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if [ -f /proc/net/tcp -o -f /proc/net/tcp6 ]
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then
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echo yes
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exit 0
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else
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echo no
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exit 1
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fi
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esac
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# See #include <netinet/tcp.h>
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cat /proc/net/tcp* | awk '
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match ($4, /0[0-9A-B]/) {
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STATE[$4]++;
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}
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END {
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printf "established.value %d\n", STATE["01"];
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printf "syn_sent.value %d\n", STATE["02"];
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printf "syn_recv.value %d\n", STATE["03"];
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printf "fin_wait1.value %d\n", STATE["04"];
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printf "fin_wait2.value %d\n", STATE["05"];
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printf "time_wait.value %d\n", STATE["06"];
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printf "close.value %d\n", STATE["07"];
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printf "close_wait.value %d\n", STATE["08"];
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printf "last_ack.value %d\n", STATE["09"];
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printf "listen.value %d\n", STATE["0A"];
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printf "closing.value %d\n", STATE["0B"];
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}'
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