shell_exec('dig ~') returns null, but shell_exec('whoami') does not

Asked Apr 04 '15 at 07:55

Active Apr 04 '15 at 08:23

Viewed 84 times

I am trying to return dig output to html using PhP but my

$output = shell_exec('dig txt 48.60.191.107.query.senderbase.org');
echo '<pre>$output</pre>';

command comes up NULL. as I test I tried 'whoami' and it returned www which is correct.

How do I get shell_exec() to output a dig query?

edited Apr 04 '15 at 08:23

Code Lღver

asked Apr 04 '15 at 07:55

mine

1

Is it installed? Did you test from the shell? Is its location in the path? What do the error logs say? Did you capture `stderr` yet with `2>&1` etc.? – mario Apr 04 '15 at 07:58
@mario I keep getting 'command not found'? – mine Apr 04 '15 at 08:35
Well, that doesn't leave much room for interpretation. Install it. – mario Apr 04 '15 at 08:42
@mario but I can run the dig command at the command line on the same server just fine. It's doesn't like sudo either. – mine Apr 04 '15 at 08:43
You still haven't answered: Is its location in the path? – mario Apr 04 '15 at 08:48
My guess is that www (apache user) doesn't have permissions to run the command. Try adding www to `/etc/sudoers`. – EternalHour Apr 04 '15 at 08:48
@EternalHour same command not found after adding -> www ALL=(ALL) ALL to sudoers – mine Apr 04 '15 at 09:20
I gave it the full path to dig and it worked. But curious why. – mine Apr 04 '15 at 09:25

0 Answers0