Messages in this thread | | | Subject | Re: immutable flag on ext2fs | Date | Tue, 22 Jun 1999 10:16:36 +0100 (BST) | From | Alan Cox <> |
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> Question, If someone hasn't set the secure level (I don't understand this > yet <g>) and did make all file immutable, wouldn't debugfs get around this? > If someone has gotten root on the machine what's to stop them from doing > what they want (assuming something like ftp or some programs forgotten by > the admin exist)
Securelevel is supposed to be one way in all respects. So it disables access to raw block devices, to mmap on /dev/*mem and all other known paths root could use to change it indirectly back (eg ioperm/iopl)
Alan
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