Shutdown via script over (W)LAN

tommyboy180

What does shutting down the "cop" do? Does this disable the firewall, shutdown the system, or something else?

I'm sure we can help you find a simple script written in php.

GruensFroeschli

IP/halt.php
You could call this page with curl.

schnubert

Hi!

Thanks for the fast response.

What does shutting down the "cop" do?

Yes, It halts the system.

IP/halt.php
You could call this page with curl.

This sounds quite nice already but I ve little issue with curl as I want to do the shutdown from several Systems(eg. Linux, iPhone, Mac, Windows, -curl needs to get "installed") and I was used to more or less just open that URL in whatever browser I want and it halted the system without prompting for credentials.

I am grateful for any hint ;)

tommyboy180

Try the page on your device and see it it works. If not just create your own.

A simple script may look like

// Halts the system when the page is browsed
// No authentication required (insecure)
echo exec('shutdown -h now');
?>

And save that to /usr/local/www/halt.php or whatever you want to name it.

schnubert

@tommyboy180:

Try the page on your device and see it it works. If not just create your own.

A simple script may look like
// Halts the system when the page is browsed
// No authentication required (insecure)
echo exec('shutdown -h now');
?>
And save that to /usr/local/www/halt.php or whatever you want to name it.

Worked like a charme … ;D ;D ;D
I just replaced "shutdown -h now" with a "shutdown -p now"

Thanks a lot!

tommyboy180

Why shutdown -p? That just sounds unsafe.

schnubert

@tommyboy180:

Why shutdown -p? That just sounds unsafe.

With shutdown -h the system does not powerdown but with -p it does…

Why do you mean -p is unsafe? ???

tommyboy180

shutdown -h does poweroff. Shutdown -h will halt the system and poweroff

shutdown -p will just power it off so it's the same as pulling the power. That's bad.

schnubert

hmmm I am confused now….
According to the BSD manpage http://www.freebsd.org/cgi/man.cgi?query=shutdown&sektion=8

-h The system is halted at the specified time.

-p The system is halted and the power is turned off (hardware support required) at the specified time.

…or do I understand something wrong here? ???

tommyboy180

I know that -h will halt and shutdown because that's what I use. I guess you could experiment and see which one works best for you.

Let me know what you find out.

schnubert

Hey!

I did some tests already and found out that with shutdown -h the system is doing a shutdown but it remains powered(on the screen you can read "press any key to reboot")

With shutdown -p system will be get "shutdowned" and powered off….

Maybe this behavior differs from system to system...?

tommyboy180

Yeah, it has to differ from system to system.
I use shutdown -h all the time and it cuts the power after the shutdown process completes.

Well I'm glad the php script worked for you. Take care!