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Hello all,
I've came up with an issue when trying to work on Linux's shell using PHP
it seems to work when I issue the following commands, shell_exec("iptables -h");, shell_exec("ls"); and shell_exec("ifconfig");
however when I'm trying to do something like this, shell_exec("iptables -L") or shell_exec("iptables restart");
it doesnt seem to work
I am a PHP and Linux novice....
Could somebody kindly help me, I am desparate to get this working
Thankyou
Have you checked to see if the commands work directly on the command line on the machine you're doing this on? Personally neither 'iptables restart' nor 'iptables -L' work on my laptop here. Do you get any output from the failing shell_exec commands (shell_exec should return the entire output of the command, ie stdout and stderr).
Thanks for your reply,
the commands such as "iptable -L" works fine in the original shell
but there are just no output nor response when I do it through shell_exec().
However for some reason, the shell_exec could execute "ifconfig" and deliver the output on the browser.
I've tried several commands, such as "ls -l","ifconfig" and "iptables -h", these all works and return the result on the browser.
However when I'm trying to do "iptables -L" which shows the currently configuration in my firewall, nothing happens..
this is my code: $output = shell_exec ("iptables -L");
echo $output;
I also tried the "service iptables restart" command using shell_exec, however it returned: "Unloading iptables module [FAILED], Applying iptables firewall [FAILED].
This means that there are results for certain commands, is it a problem with permissions?
I heard some people use "sudo" to authorize the access, but I don't know how to use it.