pfSense

			$ifname= "captiveportal";

			if (!file_exists("$rrddbpath$ifname$captiveportaltotalusers")) {

				$rrdcreate = "$rrdtool create $rrddbpath$ifname$captiveportaltotalusers --step $rrdcaptiveportalinterval ";

				$rrdcreate .= "DS:totalusers:GAUGE:$captiveportalvalid:0:10000 ";

				$rrdcreate .= "RRA:AVERAGE:0.5:1:1000 ";

				$rrdcreate .= "RRA:AVERAGE:0.5:5:1100 ";

				$rrdcreate .= "RRA:AVERAGE:0.5:60:1175 ";

				$rrdcreate .= "RRA:AVERAGE:0.5:720:3000 ";

				$rrdcreate .= "RRA:MIN:0.5:1:1000 ";

				$rrdcreate .= "RRA:MIN:0.5:5:1100 ";

				$rrdcreate .= "RRA:MIN:0.5:60:1175 ";

				$rrdcreate .= "RRA:MIN:0.5:720:3000 ";

				$rrdcreate .= "RRA:MAX:0.5:1:1000 ";

				$rrdcreate .= "RRA:MAX:0.5:5:1100 ";

				$rrdcreate .= "RRA:MAX:0.5:60:1175 ";

				$rrdcreate .= "RRA:MAX:0.5:720:3000 ";

				$rrdcreate .= "RRA:LAST:0.5:1:1000 ";

				$rrdcreate .= "RRA:LAST:0.5:5:1100 ";

				$rrdcreate .= "RRA:LAST:0.5:60:1175 ";

				$rrdcreate .= "RRA:LAST:0.5:720:3000 ";

				create_new_rrd($rrdcreate);

			}

			/* enter UNKNOWN values in the RRD so it knows we rebooted. */

			if($g['booting']) {

				mwexec("$rrdtool update $rrddbpath$ifname$captiveportaltotalusers N:U");

			}

			/* the Captive Portal stats gathering function. */

			$rrdupdatesh .= "\n";

			$rrdupdatesh .= "# polling Captive Portal for number of concurrent users\n";

			$rrdupdatesh .= "CP=`$php -q $captiveportal_gather total`\n";

			$rrdupdatesh .= "$rrdtool update $rrddbpath$ifname$captiveportaltotalusers \${CP}\n";