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Full Discussion: Communicate to the OS(linux) using front end.
Top Forums UNIX for Dummies Questions & Answers Communicate to the OS(linux) using front end. Post 302424302 by pinga123 on Tuesday 25th of May 2010 02:03:23 AM
Old 05-25-2010
Quote:
Originally Posted by pludi
Usually, that's a Bad Idea™. If you have to do it, only allow a few fixed static commands, allowing no user input.

If you have to accept user input be very restrictive about it, and check it for disallowed commands. Since any command will run with the ID of the web server, one malicious user can destroy the whole website, or even the system itself (it takes only one "Bobby Tables").

Once you've checked everything, call Runtime.getruntime().exec()
What if i want to execute them with different user id.
 

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LEARN ABOUT CENTOS

httppower

httppower(8)							     powerman							      httppower(8)

NAME

       httppower - communicate with HTTP based power distribution units

SYNOPSIS

       httppower [--url URL]

DESCRIPTION

       httppower  is  a  helper program for powerman which enables it to communicate with HTTP based power distribution units.	It is run interac-
       tively by the powerman daemon.

OPTIONS

       -u, --url URL
	      Set the base URL.

INTERACTIVE COMMANDS

       The following commands are accepted at the httppower> prompt:

       auth user:pass
	      Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password
	      over the network in plain text.

       seturl URL
	      Set the base URL.  Overrides the command line option.

       get [URL-suffix]
	      Send an HTTP GET to the base URL with the optional URL-suffix appended.

       post [URL-suffix] key=val[&key=val]...
	      Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument.

FILES

       /usr/sbin/httppower
       /etc/powerman/powerman.conf

ORIGIN

       PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters.  This software is open source and distributed under the terms
       of the GNU GPL.

SEE ALSO

       powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7).

       http://sourceforge.net/projects/powerman

powerman-2.3.5							    2009-02-09							      httppower(8)
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