my ping snippet, need some assistance

ajdegans

<?php 
$ip1 = "192.168.0.2"; 
$ip2 = "192.168.0.3"; 
$ip3 = "192.168.0.11"; 

$ping1 =`ping -n 1 $ip1`; 
$ping2 =`ping -n 1 $ip2`; 
$ping3 =`ping -n 1 $ip3`; 

echo "<br><hr><br>";
echo "Computer 1a<br>";
echo "<pre>".$ping1."</pre>";
echo "<br><hr>Computer 2a<br>";
echo "<pre>".$ping2."</pre>";
echo "<br><hr>Computer L1a<br>";
echo "<pre>".$ping3."</pre>";
?>

it results in this:

[QUOTE]

Computer 1a

Pinging 192.168.0.2 with 32 bytes of data:

Reply from 192.168.0.2: bytes=32 time<10ms TTL=128

Ping statistics for 192.168.0.2:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

Computer 2a

Pinging 192.168.0.3 with 32 bytes of data:

Request timed out.

Ping statistics for 192.168.0.3:
Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

Computer L1a

Pinging 192.168.0.11 with 32 bytes of data:

Reply from 192.168.0.11: bytes=32 time<10ms TTL=128

Ping statistics for 192.168.0.11:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
[/QUOTE]

im running it on a windows server, im not sure what it does on linux based ones.....

anyway, several questions.

1.) If i post the results on a website is that a save thing? or is there a way to access the cmd through this? (dumb question probably?) 😃

2.) How do i make it so that if the ping times out it shows OFFLINE and when its a positive reply it shows ONLINE, i guess i need to extract the result somehow? i thought 'explod' but cant really figure out how?

Thanks your time... 😃

drew010

here is a small class i just made that will be faster, easier to use, and easier to re-use than calling ping from the command line. if you have any questions on it feel free to ask since i didnt comment it at all.

<?php 

class checkStatus {
	var $errno;
	var $errstr;
	var $online;

function check($hostname, $port = 80, $timeout = 10)
{
	$fp = @fsockopen($hostname, $port, $this->errno, $this->errstr, $timeout);
	if (!$fp) {
		$this->online = FALSE;
	} else {
		$this->online = TRUE;
		fclose($fp);
	}
}


function showStatus()
{
	return ($this->online ? "Online" : "Offline");
}


function reset()
{
	$this->errno = "";
	$this->errstr = "";
	$this->online = "";
}
}

$online = new checkStatus();
$online->check("www.google.com");
echo $online->showStatus() . "<br />";
$online->reset();
$online->check("www.fdasfasdfawefwea.org");
echo $online->showStatus() . "<br />";
$online->check("www.aol.com");
echo $online->showStatus() . "<br />";
$online->reset();
$online->check("www.tjew39jht3igog923yu904yu30.org");
echo $online->showStatus();

?>

ajdegans

nice piece of code....

i tried it with my own set of ips... and no worky?

it just returns offline all the time...

My idea is to ping computers on my lan to see if they are online...
(might help for further assistance?) 🙂

i looked up fsockopen on php.net and it seems that its only for internet domains?

And for websites it does work! but not local pc's

anyway thanks for the idea 😃

drew010

i was able to ping my router, and a few local machiens here fine (it said online), and when i changed the ip to a local, unassigned ip, it returned offline. what are the ip's?

ajdegans

i want to monitor the ips:

192.168.0.2

192.168.0.3

192.168.0.11

not sure if they are visible from wan though... since all traffic goes through my server (which is in fact my router) 🙂

drew010

of course those ip's arent visible through the wan, they are local NAT addresses. i have the same ip's here.

in the same script, above where you call the check online code, put this line:

echo "{$SERVER['HTTP_HOST']} {$SERVER['SERVER_ADDR']}<br />";

the first should read something like localhost or whatever you named yoru machine, but it shouldnt be an internet domain, and the second should read 127.0.0.1 or 192.168.0.xxx and not your wan ip. if it is your wan ip, then you wont be able to check the online status of the local ips.

drew010

if you have one machine set as the default master zone, it should still be able to contact the local machines. im not sure why it isnt working.

ajdegans

it shows my domain and wan ip...

so thats the problem then?

drew010

im not sure. have a look at this url.

http://63.196.4.170/onlinechecker.php

i set my computer to be dmz and it is now accessable from the internet. php is still able to check status of local ip's.

the machine you are running php from is at your house right? you are using ath.cx as your dynamic dns service?

ajdegans

www.zerocom.ath.cx/projects/frames/ping2.php is where my script is...

ive put in the names of the ips.. so you can see which ones work and which ones dont... at the moment they are all online!

and yes its at my house

drew010

it shows the server online and pc1a off. the only other idea i have, is to modify the class, putting a system call to ping right there and echo the output, and see if ping works on the ip and if fsock does or doesnt. if ping shows it connected and the script says the host is offline, i guess it wont work for you.

drew010

hey, i feel pretty stupid. im connecting to port 80 in the fsockopen call, which is the webserver. all my computers here are running one form of a webserver, either apache, iis, zeus etc so thats why they all rsepond. if your local pc is not running a webserver, then it wont work. i guess since you are trying to see if a pc is online, you will need to use a ping type script. sorry for wasting time, i assumed you were testing if webservers were up. not just machines.

ajdegans

www.zerocom.ath.cx/projects/frames/ping.php if you look at that thats the very first code i posted in here...

that works....