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proc.5: Document /proc/sys/kernel/dmesg_restrict 

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Kees Cook 2013-01-11 12:52:03 +01:00 committed by Michael Kerrisk
parent 25fc6a84b8
commit a1da75e7d6
1 changed files with 13 additions and 0 deletions
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@ -2560,6 +2560,19 @@ mode, the ctrl-alt-del is intercepted by the program before it
ever reaches the kernel tty layer, and it's up to the program
to decide what to do with it.
.TP
.IR /proc/sys/kernel/dmesg_restrict " (since Linux 2.6.37)"
The value in this file determines who can see kernel syslog contents.
A value of 0 in this file imposes no restrictions.
If the value is 1, only privileged users can read the kernel syslog.
(See
.BR syslog (2)
for more details.)
Since Linux 3.4,
.\" commit 620f6e8e855d6d447688a5f67a4e176944a084e8
only users with the
.BR CAP_SYS_ADMIN
capability may change the value in this file.
.TP
.IR /proc/sys/kernel/domainname " and " /proc/sys/kernel/hostname
can be used to set the NIS/YP domainname and the
hostname of your box in exactly the same way as the commands