Add option to ping servers

[dopeh]

The current service functionality is only able to check whether a service is listening on a certain port. If you just want to ping a server without a specific port and check for response yes/no, this is not possible. A situation where a ping could be useful is for checking dyndns hostnames.
Because it is a different protocol it can not be checked with the current fsockopen(). The suggestion is to use port no. 1 for pings. So if a service is added with port=1, no fsockopen() will be used but instead an exec() to execute the ping program.

[Abawell]

Or you could add a third type. You would have Ping, Website or Service.
Other possibility: Having several test type for all server and select what services must be tested.
Than you could extend the tests to ftp, pop, imap and more...
That's the solution used by professional server monitoring applications. The problem in our case is, the php script execution time is limited to 30 s.

[bereldhuin]

+1 for this option

Here is a function I found to use ping with pure php (adapted from the php website : http://www.php.net/manual/en/function.socket-create.php) :

function ping($host, $timeout = 1) {
/* ICMP ping packet with a pre-calculated checksum */
$package = "\x08\x00\x7d\x4b\x00\x00\x00\x00PingHost";
$socket = socket_create(AF_INET, SOCK_RAW, 1);
socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array('sec' => $timeout, 'usec' => 0));
if(@socket_connect($socket, $host, null)){;
$ts = microtime(true);
socket_send($socket, $package, strLen($package), 0);
if (socket_read($socket, 255)){
$result = round((microtime(true) - $ts) * 1000, 0);
}
else {
$result = -1;
}
socket_close($socket);
}
else {
echo socket_last_error() . ' '. socket_strerror(socket_last_error());
$result = -1;
}
return $result;
}

I tested it on Windows 7, with Xammp / php5.3 and Debian 7 / php 5.5
On Linux, it needs to have root privillege to create socket which is not a problem as the checks are don from command line

[nerdalertdk]

@Abawell
You can change the execution time with htaccess ?

[nerdalertdk]

See pull #92 :)

[insuman]

AFTER 3 HOURS FINALLY GET A SOLUTION TO PING SERVER WITH PORT 1 ....

open StatusUpdater.class.php inside function updateService at the first line add this :

if (($this->server['port'])==1) {
    $timeout = 5;
    /* ICMP ping packet with a pre-calculated checksum */
    $package = "\x08\x00\x7d\x4b\x00\x00\x00\x00PingHost";
    $socket  = socket_create(AF_INET, SOCK_RAW, 1);
    socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array('sec' => $timeout, 'usec' => 0));
    socket_connect($socket, $this->server['ip'], null);
    $ts = microtime(true);
    socket_send($socket, $package, strLen($package), 0);
    if (socket_read($socket, 255)) {
        $status = true;
    } else {
    //check error --   echo socket_last_error() . ' '. socket_strerror(socket_last_error());
        $status = false;    
    }
$this->rtime = (microtime(true) - $starttime);
    socket_close($socket);
    } else 

//rest of code 

{   

now add a server ip with port =1 and you will be able to ping it

remember for win7 you must execute as admin you have to do this :

Command Prompt > (Run as administrator)
net user administrator /active:yes

you have to change also response time second to milisecond

[sadortun]

PR in progress #102

[insuman]

hi Archangel236 i added this code in statusupdater.class.php and ping work for me like a charm ! only one thing dont forget to change "octets=32" to your own language machine cause for me is in french good luck protected function updateService($max_runs, $run = 1) { //add ping here if (($this->server['port'])==1) { $timeout = 5; $ip = $this->server['ip'] ; $ping = exec("ping -n 1 $ip",$input,$result); $res = explode(" " , $input[2]) ; if ($res[3] == "octets=32") { $status = true ; $this->rtime = (microtime(true) - $ts); return $status; } else $status = false ; if(!$status && $run < $max_runs) { return $this->updateService($max_runs, $run + 1); } } else { $errno = 0; // save response time $starttime = microtime(true); $fp = fsockopen ($this->server['ip'], $this->server['port'], $errno, $this->error, 10); $status = ($fp === false) ? false : true; $this->rtime = (microtime(true) - $starttime); if(is_resource($fp)) { fclose($fp); } // check if server is available and rerun if asked. if(!$status && $run < $max_runs) { return $this->updateService($max_runs, $run + 1); } } // end function update service } 2015-07-03 10:37 GMT+02:00 Archangel236 <notifications@github.com>:

…

ping dose not worked. If can used this code explode white page — Reply to this email directly or view it on GitHub <#35 (comment)> .