Linux & UNIX in commercial appliances


 
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The Lounge What is on Your Mind? Linux & UNIX in commercial appliances
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Old 01-13-2014
Linux & UNIX in commercial appliances

Hi All,

I was wondering how come major router vendors (e.g C**CO ) use
a custom linux/unix in their appliance but do not publish this custom code.
Isn't it a disobedience to the GPL licence ?

Please share your thoughts.
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CTRLALTDEL(8)						       System Administration						     CTRLALTDEL(8)

NAME
ctrlaltdel - set the function of the Ctrl-Alt-Del combination SYNOPSIS
ctrlaltdel hard|soft DESCRIPTION
Based on examination of the linux/kernel/sys.c code, it is clear that there are two supported functions that the Ctrl-Alt-Del sequence can perform: a hard reset, which immediately reboots the computer without calling sync(2) and without any other preparation; and a soft reset, which sends the SIGINT (interrupt) signal to the init process (this is always the process with PID 1). If this option is used, the init(8) program must support this feature. Since there are now several init(8) programs in the Linux community, please consult the documentation for the version that you are currently using. ctrlaltdel is usually used in the /etc/rc.local file. FILES
/etc/rc.local SEE ALSO
simpleinit(8), init(8) AUTHOR
Peter Orbaek (poe@daimi.aau.dk) AVAILABILITY
The ctrlaltdel command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux October 1993 CTRLALTDEL(8)