Ping Help?

Pilly

Hi
Im hoping someone could help.

I want to ping a network server on the LAN, and give a image for the result...

This is what i have so far.

<?PHP

$address ="192.168.200.246";

$sk = system ("ping $address");
if(eregi("Request timed out",$sk))
{
?>
<center><img src="http://Intranet2/status/dead.gif"></center>
<?

} else { ?>
<center><img src="http://Intranet2/status/live.gif"></center>
<?
}

Is there any way to stop the output appearing? eg. Pinging 192.168.200.246 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out.

Or is there a better way to do this??

tomkleijkers

I use another way to ping a server:

<?
function ping($host) {
  echo 'HOSTNAME: <a class="text" href="http://' . $host . '">' .  $host . '</a><br>'; 
  $ip = gethostbyname($host);
  echo 'IP: '. $ip . '<hr>';
  $result = `ping -c 1 $ip`; 
  $a = strpos($result, "time="); 
  $b = strpos($result, " ms"); 
  if (!$a || !$b) { 
	return FALSE; 
  } 
  $a = $a+5; 
  $r = substr($result, $a, $b-$a); 
  return $r; 
} 

$hostname = 'www.phpbuilder.com';
$ping = ping($hostname);
if(!$ping) echo 'Ping timed out.'; else
echo 'ping time: ' . $ping . ' ms';

Pilly

I tried this but it kept timing out when i added an IP ad the $hostname, how can i do this with IP addresses?

tomkleijkers

Hmm, i guess i don't understand your problem. Please explain...

Pilly

All i want to do is ping the IP numbers of the servers I have on the lan, and give them a image for whatever status they are?

tomkleijkers

Yeah, i guess the script i gave you should work... It works fine with me: http://tom.kleijkers.nl/home

Pilly

My problem is that its IP addresses i need to ping.

<?
function ping($host) {
echo 'HOSTNAME: <a class="text" href="http://' . $host . '">' . $host . '</a><br>';

$ip = gethostbyname($host);
echo 'IP: '. $ip . '<hr>';
$result = ping -c 1 $ip;

$a = strpos($result, "time=");

$b = strpos($result, " ms");

if (!$a || !$b) {

return FALSE;

}

$a = $a+5;

$r = substr($result, $a, $b-$a);

return $r;

}

$hostname = 'www.phpbuilder.com';
$ping = ping($hostname);
if(!$ping) echo 'Ping timed out.'; else
echo 'ping time: ' . $ping . ' ms';

I dont have a domain name like above, just an IP address. So when I try it I assume it tries to convert the hostname into an IP and it fails.

Any other ideas?

tomkleijkers

<? 
function ping($ip) { 
echo 'IP: '. $ip . '<hr>'; 
$result = `ping -c 1 $ip`; 
$a = strpos($result, "time="); 
$b = strpos($result, " ms"); 
if (!$a || !$b) { 
return FALSE; 
} 
$a = $a+5; 
$r = substr($result, $a, $b-$a); 
return $r; 
} 

$ip = '192.168.0.1';
$ping = ping($hostname); 
if(!$ping) echo 'Ping timed out.'; else 
echo 'ping time: ' . $ping . ' ms';

Like this?? Just remove the gethostbyname()....

Pilly

Keep getting Ping timed out.

$ping = ping($hostname);

Wheres $hostname defined?

should it be

ping($ip);

Even if it is i still get ping timed out...

tomkleijkers

Yeah ofcourse it should be ping($ip). But when it times out, are you sure you're able to ping that ip address from your server?? You cannot ping a local ip from the internet ofcourse... Try pinging an ip you know for sure it exists and it should work. I think the fault is not in the script but somewhere else.

Pilly

I did, i changed it to 192.168.200.1 and the webserver is on the same network 192.168.200.240, and it can ping this address normally. Its an NT box running apache.

tomkleijkers

Than i don't know. The script works as you can see, so the error is somewhere in your network or configuration.

Pilly

If i change this line

$result = ping -n 1 $ip;

$result = system ("ping -n 1 $ip");

I get a response

Pinging 192.168.200.1 with 32 bytes of data: Reply from 192.168.200.1: bytes=32 time<10ms TTL=255 Ping timed out.

I think theres a problem with this line

$result = ping -n 1 $ip;

BulldogGC

So what is the final, confirmed as working, code that ya'll are using?

BulldogGC

bump ... are we allowed to do this? heh
hellllllp guys

Pilly

I cant get it to work properly.

This line is the one im having trouble with.

$result = system ("ping -n 1 $ip");

Pilly

I changed it to this. works a treat.

<?PHP

///////// GATEWAY /////////////////
$Gteway ="192.168.200.1";

$sk = exec ("ping -n 1 $Gteway");
if(eregi("Request timed out",$sk))
{
?>
<center><img src="http://Intranet2/status/dead2.gif"></center>
<?

} else { ?>
<center><img src="http://Intranet2/status/live2.gif"></center><?
}
///////// END OF GATEWAY ////////////