~ overflow ~

Problem:

How know if a server is up and if each of it’s needed services (httpd, mysql, ftp etc) are working?

Solution:

A php script that check the ports you want and report it back to you by email when the server is down and when it gets backup.

Source Here

This is a new version of my old ping script, it’s been tunned and now allows you to warn multiple emails when something goes wrong. It also fixes the issue with port flood (when there’s too little servers to check)

Please note that you are supposed to run this on a stable server with a good connection, otherwise it will generate useless status. If you insist in running it on your home connection, give a tune up on the variables by raising the timeout values.

This Script will ping the servers on the $p array non stop, timeout is calculated * 5, so it you set _timeout to 2 the server timeout will be 10 seconds, that means that after 10 seconds of no reply it will take the server/service as down. It’s obviously recommended that you don’t run this script on the very same machine you want to test, since, if it gets down, you will never know (stupid). Apart from that, if you run this script on a machine with a crappy connection or/and port limited/firewalled you might expect problems.

Click here to see the .phps file with right padding or check this ugly text above (thanks to wordpress) :

<?php

// (c) z3n – R1V1@081114 – Port Check – Distribute under MIT License

define(‘is_debug’,0);                            // debug mode
define(‘w_sw’,1);                                    // enable warning by email
define(‘_e’,'happy@didlidodli.com’);        // warning email address
define(‘_timeout’,2);                            // fsockopen timeout in seconds
define(‘_max_timeout’,5);                    // max fsockopen timeout loops
define(‘_dt’,”Y-m-d \@ H:i:s”);        // date/time format

$p=array( // Servers to Check – Server Name , IP/Hostname , Port
array(‘Server Name 1 WWW’,'1.2.3.4′,’80′),
array(‘Server Name 1 FTP’,'1.2.3.4′,’21′),
array(‘Server Name 1 ParaChat’,'1.2.3.4′,’7777′)

);

function f($x) { return number_format($x,0,’.',’,'); }
function a($t) { if ($t > 1000) { if ($t > 1000000) { if ($t > 1000000000) { if ($t > 1000000000000) { if ($t > 1000000000000000) { if ($t > 1000000000000000000) { if ($t > 1000000000000000000000) { $u=”o”;$t=$t/1000000000000000000000; } else { $u=”E”;$t=$t/1000000000000000000; } } else { $u=”P”;$t=$t/1000000000000000; } } else { $u=”T”;$t=$t/1000000000000; } } else { $u=”G”;$t=$t/1000000000; } } else { $u=”M”;$t=$t/1000000; } } else { $u=”K”;$t=$t/1000; } } else { $u=”"; } return round($t,3).$u; }
function p($i,$p,$t=5) {
$f=@fsockopen($i,$p,$e,$s,$t); // ip/hostname, port, error number, error description, timeout (sec)
@fclose($f);
if(!$f) {
if (is_debug) { echo “\n[ERROR] “.$e.”: “.$s.”\n”; }
return 0;
} else {
return 1;
}
}

echo “(c) z3n – R1V1@081114 – Ping by Port Check\n”;

for ($i=$b=$o=0,$k=count($p),$u=array_fill(0,$k,0);0 < 1;$i++) {
echo “\r[".date(_dt)."] L:”.a($i).” G:”.a($i-$b).” B:”.f($b).” T:”.a($o); // Loops , Good , Bad , Timeout
for ($j=0;$j<$k;$j++) {
if (!p($p[$j][1],$p[$j][2],_timeout)) {
$u[$j]++;$o++;
if ($u[$j] == _max_timeout) {
$m=”[".date(_dt).":".$i."@".$u[$j].”] “.$p[$j][0].”: (“.$p[$j][1].”:”.$p[$j][2].”) Down”;
if (w_sw) { mail(_e,$p[$j][0].” is Down”,$m,”From: “._e); }
echo “\n”.$m.”\n”;$b++;
}
} else {
if ($u[$j] >= _max_timeout) {
$m=”[".date(_dt).":".$i."@".$u[$j].”] “.$p[$j][0].”: (“.$p[$j][1].”:”.$p[$j][2].”) Online”;
if (w_sw) { mail(_e,$p[$j][0].” Back Online”,$m,”From: “._e); }
echo “\n”.$m.”\n”;$b–;
}
$u[$j]=0;
}
}
}

?>