89 lines
1.8 KiB
Bash
Executable File
89 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
|
|
# -*- sh -*-
|
|
: << =cut
|
|
|
|
=head1 NAME
|
|
|
|
tcpstates - Plugin to monitor TCP socket states
|
|
|
|
=head1 CONFIGURATION
|
|
|
|
No configuration
|
|
|
|
=head1 AUTHOR
|
|
|
|
Babak Farrokhi
|
|
|
|
=head1 LICENSE
|
|
|
|
BSD 2-Clause License
|
|
|
|
=head1 BUGS
|
|
|
|
=head1 MAGIC MARKERS
|
|
|
|
#%# family=auto
|
|
#%# capabilities=autoconf
|
|
|
|
=cut
|
|
|
|
. $MUNIN_LIBDIR/plugins/plugin.sh
|
|
|
|
print_cfg() {
|
|
fname=$1
|
|
fdesc=`echo $1 | tr [:lower:] [:upper:]`
|
|
|
|
echo "$fname.label $fdesc"
|
|
echo "$fname.min 0"
|
|
echo "$fname.max 50000"
|
|
echo "$fname.info The number of sockets in $fdesc state"
|
|
print_warning $fname
|
|
print_critical $fname
|
|
}
|
|
|
|
|
|
if [ "$1" = "autoconf" ]; then
|
|
if ( /usr/bin/netstat -s 2>/dev/null >/dev/null ); then
|
|
echo yes
|
|
exit 0
|
|
else
|
|
if [ $? -eq 127 ]
|
|
then
|
|
echo "no (netstat program not found)"
|
|
exit 0
|
|
else
|
|
echo no
|
|
exit 0
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if [ "$1" = "config" ]; then
|
|
|
|
echo 'graph_title TCP Socket States'
|
|
echo 'graph_args --base 1000'
|
|
echo 'graph_vlabel TCP states per ${graph_period}'
|
|
echo 'graph_category network'
|
|
echo 'graph_period second'
|
|
echo 'graph_info This graph shows the TCP activity of all the network interfaces combined.'
|
|
|
|
for f in syn_sent listen time_wait closing closed last_ack fin_wait_1 fin_wait_2 close_wait
|
|
do
|
|
print_cfg $f
|
|
done
|
|
|
|
exit 0
|
|
fi
|
|
|
|
netstat -an | grep ^tcp4 | awk '{print $6}' | sort | uniq -c | awk '
|
|
/SYN_SENT/ { print "syn_sent.value " $1 }
|
|
/LISTEN/ { print "listen.value " $1 }
|
|
/TIME_WAIT/ { print "time_wait.value " $1 }
|
|
/CLOSING/ { print "closing.value " $1 }
|
|
/CLOSED/ { print "closed.value " $1 }
|
|
/LAST_ACK/ { print "last_ack.value " $1 }
|
|
/FIN_WAIT_1/ { print "fin_wait_1.value " $1 }
|
|
/FIN_WAIT_2/ { print "fin_wait_2.value " $1 }
|
|
/CLOSE_WAIT/ { print "close_wait.value " $1 }'
|
|
|