Hi, Why do you think on my system I cannot access vcs* devices. As far as I > remember I never said that. >
You did include the output of "ls -l /dev/vcs*" on your system, showing that they're owned by vcsa and chmod 600. So, they are not directly accessible to your 'echo' or 'ghost' users. They might be accessible via cons.saver. > I am sorry if didn't make it clear. On my system cons.saver is owned by > the vcsa user and has the setuid bit. vcs* devices are owned by the vcsa > user as well, and the user has read/write permissions. > > Once again, my questions were only about tty devices. I do not know why > you're answering questions I never asked. > > I am not sure if the same security policy should be applied to vcs* devices. > So, again, if I'm not mistaken, cons.saver basically does the following: Based on the ownership, permissions etc. of _/dev/ttyX_, it either grants or denies access to _/dev/vcsaX_. You cannot examine the ttyX and the vcsaX story independently from each other. They are both part of 1 single complex story. Cheers, egmont
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