- have some dirs

plugins/network/net_hosts_

@@ -0,0 +1,31 @@
+#!/bin/sh
+# munin plugin to show number of online network hosts on a subnet (needs fping)
+# link with subnet name as suffix like _192.168.1
+# will most likely need a custom timeout setting in /etc/munin/plugin-conf.d/munin-node
+# for example:
+# [net_hosts_*]
+# timeout 20
+#
+# (c) 2011 jon@jon.bpa.nu
+#%# family=manual
+
+SUBNET=`echo $0 | cut -d'_' -f3`
+TIMEOUT=50 # ms
+RETRIES=0
+
+case $1 in
+	config)
+	cat <<CFG
+graph_title hosts on network $SUBNET.
+graph_vlabel hosts
+graph_category network
+hosts.label hosts
+CFG
+	exit 0;;
+esac
+
+if [ $SUBNET != "" ]; then
+	echo "hosts.value `fping -t $TIMEOUT -r $RETRIES -ga \"$SUBNET.0/24\" 2>/dev/null | wc -l`"
+else
+	echo "could not get subnet name ($SUBNET)"
+fi