config FREETZ_PACKAGE_NANO_SHELL
	bool "Nano Shell"
	default n
	help
		Remotely execute arbitrary shell commands via URLs

		This tiny package enables both the AVM and Freetz web interfaces to
		execute user-specified commands and display their results and/or errors,
		if available.

		ATTENTION! Nano shell should only be used for debugging purposes, e.g. if
		telnetd, sshd (Dropbear) or Rudi shell are unavailable for any reason.
		This is a last resort for executing commands on a router box if anything
		else fails, but at least one of the two web interfaces (AVM, Freetz) is
		available. It is a POTENTIAL SECURITY HOLE, though, so never use it if
		your web interfaces are insecurely open to the outside world!!!

		How to use: Send a URL-encoded command appended to the corresponding CGI,
		for example
		  * http://fritz.box/cgi-bin/shell.cgi       (AVM web UI)
		  * http://speedport.ip/cgi-bin/shell.cgi    (AVM web UI)
		  * http://192.168.0.1/cgi-bin/shell.cgi     (AVM web UI)
		  * http://fritz.box:81/cgi-bin/shell.cgi    (Freetz web UI)
		  * http://speedport.ip:81/cgi-bin/shell.cgi (Freetz web UI)
		  * http://192.168.0.1:81/cgi-bin/shell.cgi  (Freetz web UI)
		or in general, whichever name or IP address applies to your environment.

		Example commands and corresponding encoded URLs:
		  * ls -l /var/tmp
		    http://fritz.box/cgi-bin/shell.cgi?ls%20-l%20%2Fvar%2Ftmp
		  * /usr/sbin/telnetd -p 2323 -l /bin/sh
		    http://fritz.box/cgi-bin/shell.cgi?%2Fusr%2Fsbin%2Ftelnetd%20-p%202323%20-l%20%2Fbin%2Fsh
		  * echo "Erster Befehl"; cat /etc/motd; echo "Dritter Befehl"
		    http://fritz.box/cgi-bin/shell.cgi?echo%20%22Erster%20Befehl%22%3B%20cat%20%2Fetc%2Fmotd%3B%20echo%20%22Dritter%20Befehl%22

		There are online URL encoders on the web, e.g.
		http://netzreport.googlepages.com/online_tool_zur_url_kodierung_de.html#kodieren

		Usability tip (tested in IE7, Opera 9.23 and Firefox 2.0.6):
		Many browsers accept unencoded (i.e. clear-text) CGI parameters, i.e.
		you can usually also write
		  * http://fritz.box/cgi-bin/shell.cgi?ls -l /var/tmp
		  * http://fritz.box/cgi-bin/shell.cgi?/usr/sbin/telnetd -p 2323 -l /bin/sh
		  * http://fritz.box/cgi-bin/shell.cgi?echo "Erster Befehl"; cat /etc/motd; echo "Dritter Befehl"