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nagios-plugins/misc/check_snmp_tcpconnection.sh
2010-11-22 15:55:32 +00:00

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#!/bin/sh
# Copyright 2010, Pall Sigurdsson <palli@opensource.is>
#
# This script is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# About this script
#
# This script will check for established TCP connection via SNMP
LOCAL_HOST=$1
LOCAL_PORT=$2
COMMUNITY=$3
REMOTE_HOST=$4
REMOTE_PORT=$5
if [ -z $REMOTE_HOST ]; then
echo "Usage: $0 <local_host> <local_port> <snmp_community> <remote_host>"
exit 3
fi
OUTPUT=`/usr/bin/snmpwalk -v 2c -c $COMMUNITY $LOCAL_HOST TCP-MIB::tcpConnState.$LOCAL_HOST.$LOCAL_PORT.$REMOTE_HOST | grep -q established`
RESULT=$?
if [ $RESULT -gt 0 ]; then
echo "TCP Connection from $REMOTE_HOST to $LOCAL_HOST:$LOCAL_PORT found"
echo "command:"
echo "/usr/bin/snmpwalk -v 2c -c $COMMUNITY $LOCAL_HOST TCP-MIB::tcpConnState.$LOCAL_HOST.$LOCAL_PORT.$REMOTE_HOST"
echo "OUTPUT: "
echo "$OUTPUT"
exit 1
fi
echo "TCP Connection from $REMOTE_HOST to $LOCAL_HOST:$LOCAL_PORT found"
exit 0