Shutdown via script over (W)LAN

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!