On 12/27/2009 10:53 PM, robert mena wrote:

I need to develop an interface that will, for example, ping IPs from a
remote server. So the php script will be hosted in a server with ssh access
(key) to the remote server.

I can make it work from the console but when I try

$cmd = "ssh remote-server 'ping -c 4 ip'"
exec($cmd, $ouput);

the output is empty.

the same command (with the remote-server and IP changed to the real ones)
works fine from command line.

I've added the key/config in the webserver's user .ssh directory so I am
assuming that that there is something wrong with my setup.

any ideas?

Probably other ways to do it, but this seems to work:

[mich...@archie ~]$ php a.php

PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=64 time=0.518 ms

--- ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.518/0.518/0.518/0.000 ms

[mich...@archie ~]$ cat a.php
$stuff = `ssh management 'ping -c 1'`;
echo strlen($stuff) . "\n\n$stuff";

- m

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