Can't login via ssh and execute command from php

Question

linux

There is a server with nginx + php-fpm, there is a simple page that does something like

<?php
$uname = `ssh -i /var/www/.ssh/id_rsa [email protected]192.168.11.1 uname -a | awk '{print $3}'`;
echo $uname;
?>

And so at start from a browser I receive kukish. If I log in as the nginx user through the console and execute the command, everything is fine:

[email protected] ~ $ ssh -i /var/www/.ssh/id_rsa [email protected] uname -a | awk '{print $3}'
3.8.1 - gentoo

Also, if you run these pages from the console under the nginx user, everything is fine too:

[email protected] ~ $ php /home/share/www/www/index.php
3.8.1-gentoo

What can be a joint-sir? It worked without problems with Apache, but somehow it doesn’t take off with the transition to nginx.

Answer 1

Are you sure that php is being executed by the nginx user?
PS: maybe not php-ftp, but fpm?

Answer 2

Try to specify the full paths to the running utilities. Perhaps the environment variables are not being passed.