how to ping using php

graziano

Hello ,

I am trying to send 5 ping using php using these lines

<?
$domain="yahoo.com";
$alpha = exec("/bin/ping -c5 -n -q -w5 $domain");
echo $alpha;
?>

however I receive nothing on echo $alpha;

Anyone can tell me why ?

cahva

use shell_exec instead of plain exec.

graziano

Originally posted by cahva
use shell_exec instead of plain exec.

thank you but it didn't work .
I tried also

<?
$domain="yahoo.com";
$run = shell_exec("/bin/ping -c5 -n -q -w5 $domain 2>&1");
echo $run;
?>

adding 2>&1 , but now I receive this

ping: icmp open socket: Operation not permitted

?!
Thanks

graziano

anyone pleaseee 🙁

toma42

humm...are you using phpwebhosting.com? They don't allow pinging from their machines.

The error you're getting appears to be caused from insufficient permissions for the web user to use ping.

graziano

Originally posted by toma42
humm...are you using phpwebhosting.com? They don't allow pinging from their machines.

The error you're getting appears to be caused from insufficient permissions for the web user to use ping.

No it's my box , and I chowned the file root:root .
Where is the permission problem ?

toma42

can you ping from the command line? Can you su to root then su to nobody and ping from the command line?

You have to think about the problem at a basic level in order to debug it.

graziano

Originally posted by toma42
can you ping from the command line? Can you su to root then su to nobody and ping from the command line?

You have to think about the problem at a basic level in order to debug it.

from root command line I can ping ..
from another user I cannot ping ..

so since php scripts run such as nobody I cannot ping using php .

Any idea to go over it ?

Daveyz1983

Originally posted by graziano
from root command line I can ping ..
from another user I cannot ping ..

so since php scripts run such as nobody I cannot ping using php .

Any idea to go over it ?

since its ur own box, chmod ping to group permission and add nobody to the same group

tLittlemore

If it's your own box, you can install 'sudo' and set it up to allow your apache user to use the ping command.

I did this on a server that would only allow root to use ping.

drawmack

it sounds like a safe_mode issue to me. You can, kind of, mimic ping with fsockopen