Version: v1
Type: Full Script
Category: Other
License: GNU General Public License
Description: Already use MRTG’s? Store data with RRD?
Try these php pages to set threshold monitoring on usage statistics.
Three files, index.php, devmon.php, and new_mon_list.php
devmon.php -> <?php /* * Program Name: Device List Creater * Date: March 6, 2003 * Modified: March 6, 2003 * Author: Jason Chambers * File Name: devmon.php * email: [email protected] * * Description: This page will create the list of devices to monitor by * going through the directories where the rrd files are * stored. * */ /* Set path to base directory (where subdirectories contain the rrd files) */ $rrd_dir = "/var/www/html/mon/"; /* Look inside $rrd_dir for the subdirectories */ if (is_dir($rrd_dir)){ $fd = @opendir($rrd_dir); if($fd) { while (($part = @readdir($fd)) == true) { if ($part != "." && $part != "..") { if (is_dir($part)){ $my_dir[] = $part; } } } } } sort($my_dir); /* Sort the array of subdirectories */ reset($my_dir); /* Reset the pointer to the beginning of the array */ $content = ""; /* Initialize $content */ $content .= "<html>n<head>n<title>Monitor device list</title>n</head>nn<body>nn"; $content .= "<form name="mylist" action="new_mon_list.php" method="POST">n"; for($i=0;$i<count($my_dir);$i++){ $node_dir = $rrd_dir . $my_dir[$i]; $content .= "<h5> in directory $my_dir[$i] </h5>n"; $content .= "<table>n"; if ($handle = opendir("$node_dir")) { while (false !== ($file = readdir($handle))) { if ($file != "." && $file != "..") { $content .= "t<tr>ntt<td><input type="checkbox" name="mon_me[]" value="$file"><font size="-1" color="cornflowerblue">$file</font></td>nt</tr>n"; } } } $content .= "</table>n"; } $content .= "<table>n"; $content .= "<tr><td><input type="SUBMIT"></td></tr>n"; $content .= "</table>n"; $content .= "</form>n"; $content .= "</body>n"; $content .= "</html>nn"; print "$content"; ?> !----------------------- new_mon_list.php -> <?php /* * This file takes the posted data from devmon.php * and writes to monlist.txt * * Your webserver needs to have write access * to this directory * */ $to_file = ""; foreach($_POST as $key => $nested) { for($i=0;$i<count($nested);$i++) { $to_file .= "$nested[$i]n"; } } $myFile = fopen("monlist.txt","w"); fputs($myFile,"$to_file"); fclose($myFile); header("Refresh: 5; URL=../index.php"); print "<h4><i>The file "monlist.txt" has been created in this directory.</i></h4>"; ?> !---------------------------------- index.php -> <? /* * Program Name: RRD monitor script * Date: March 3, 2003 * Modified: March 5, 2003 * Author: Jason Chambers * File name: index.php * email:[email protected] * */ header("Refresh: 600"); /* Tell the browser to refresh every 10 minutes */ $send_alert = ''; /* Send alerts when threshold is surpassed 'on'/'off' */ $notify_who = ''; /* Set the email address of the person to notify */ $mail_msg = 'Hello, '; /* Initialize $mail_msg */ /* poll list file */ $poll_list = '/home/rrdtool/poll/list'; /* path to rrdtool */ $path_rrdtool = '/usr/local/bin/'; /* path to base directory (directory that contains the subdirectories/working directories) for your rrd files */ $path_rrdbase_dir = '/var/www/html/mon/'; $time_now = time(); /* Epoch Timestamp for "now" */ $time_back = $time_now - 600; /* Timestamp for 10 minutes back from "now" */ $th_high = 4; /* if interface traffic increase by this amount */ $th_low = 3; /* if interface traffic decreases by this amount */ $num_trouble = 0; /* initialize num_trouble variable to 0 (no troubles) */ echo "<h3>" . date("l, F dS, Y h:i A") . "</h3>"; print "<table border=1 align="center">n"; print "t<tr>n"; print "tt<th>device</th>n"; print "tt<th>interface</th>n"; print "tt<th>ALERT? IN</th>n"; print "tt<th>ALERT? OUT</th>n"; $handle = fopen($poll_list,"r"); while (!feof($handle)) { $from_file = fgets($handle,256); $from_file = chop($from_file); if (!$from_file == ""){ $node = preg_split('/_/',$from_file); /* $node[] is an array on the split line, '_' from the poll file */ $path_rrdfiles = $path_rrdbase_dir . "$node[0]"; /* path to rrd files */ /* rrdtool fetch for now and 15 minutes ago */ $run_now = $path_rrdtool . "rrdtool fetch $path_rrdfiles/$from_file AVERAGE -r 900 -s $time_now -e $time_now"; $my_data_now = shell_exec($run_now); /* Array with the results of the rrdtool fetch command */ $data0_array = preg_split('/n/',$my_data_now); /* Split the array on new line char */ $now_data = preg_split('/ /',$data0_array[2]);; /* Split the new array on spaces */ /* Get old data */ $run_old = $path_rrdtool . "rrdtool fetch $path_rrdfiles/$from_file AVERAGE -r 900 -s $time_back -e $time_back"; $my_data_old = shell_exec($run_old); /* Array with the results of the rrdtool fetch command */ $data1_array = preg_split('/n/',$my_data_old); /* Split the array on new line char */ $old_data = preg_split('/ /',$data1_array[2]); /* split the new array on spaces */ /* Setup traffic in/out info */ $now_traf_in = $now_data[1] * 1; $now_traf_out = $now_data[2] * 1; $now_traf_in = number_format($now_traf_in,2,'.', ''); $now_traf_out = number_format($now_traf_out,2,'.', ''); $old_traf_in = $old_data[1] * 1; $old_traf_out = $old_data[2] * 1; $old_traf_in = number_format($old_traf_in,2,'.', ''); $old_traf_out = number_format($old_traf_out,2,'.', ''); /* Setup up alert levels */ $alert_up_in = $old_traf_in * $th_high; /* if in traffic has doubled in the last 15 minutes */ $alert_down_in = $old_traf_in / $th_low; /* if in traffic has decreased by half */ $alert_up_out = $old_traf_out * $th_high; /* if out traffic has doubled in the last 15 minutes */ $alert_down_out = $old_traf_out / $th_low; /* if out traffic has decreased by half */ /* Check for an alert */ if ($now_traf_in>$alert_up_in||$now_traf_in<$alert_down_in||$now_traf_in==0) { $in_bg_color = "red"; $in_trouble = "yes"; $num_trouble = $num_trouble + 1; $mail_msg .= "alert detected on $node[0] port $node[1] going IN. Please check traffic on $node[0] for issues.n"; } else { $in_bg_color = "green"; $in_trouble = "no"; } if ($now_traf_out>$alert_up_out||$now_traf_out<$alert_down_out||$now_traf_out==0) { $out_bg_color = "red"; $out_trouble = "yes"; $num_trouble = $num_trouble + 1; $mail_msg .= "alert detected on $node[0] port $node[1] going OUT. Please check traffic on $node[0] for issues.n"; } else { $out_bg_color = "green"; $out_trouble = "no"; } if ($in_trouble == "yes" || $out_trouble == "yes") { print "t<tr>n"; print "tt<td>$node[0]</td>n"; print "tt<td>$node[1]</td>n"; print "tt<td bgcolor="$in_bg_color" align="center"><font color="white"><strong>:: IN ::</strong></font></td>n"; print "tt<td bgcolor="$out_bg_color" align="center"><font color="white"><strong>:: OUT ::</strong></font></td>n"; print "t</tr>n"; } } } fclose($handle); /* No trouble? Cool, display no trouble message. */ if ($num_trouble == 0){ print "t<tr>n"; print "tt<td colspan=4 align="center"> <i>no current trouble</i></td>n"; print "t</tr>n"; } /* Should we send the alert by email? */ if ($num_trouble > 0 && $send_alert == "on") { mail("$notify_who","Alert detected while comparing interface usage.","$mail_msgn Thanks."); } print "</table>n"; /* Credits */ print "<table align="center">nt<tr>ntt<td><font size="-2"><i>Created by <a href="mailto:[email protected]">Jason Chambers</a></i></font></td>nt</tr>n</table>nn"; ?>
