Securelevel in Linux? (Was: Re: immutable flag on ext2fs)

Jonathan Walther (krooger@debian.org)
Tue, 22 Jun 1999 10:27:11 -0700 (PDT)

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Alan, I know we have capabilities in the kernel. Did the securelevel code
finally get added back in? If so this is a time for celebration. What
programs let an admin flip between securelevels on their linux box?

Jonathan Walther

On Tue, 22 Jun 1999, Alan Cox wrote:
> 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)

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