Hey everybody,
Quick question. How can I disable SELinux without modifing
(recompiling) the kernel? The reason I ask is because my kernel was
compiled with SELinux support, however its not "active". Apparent
vpopmail has issues with SELinux and I believe that I am having
problems because of this. I don't have the luxury of recompiling the
kernel because this is a virutal server running under Xen 2.0.
Thanks!
V/R
Steve
--
gentoo-user@gentoo.org mailing list
Steve,
If the kernel has been configured to allow it, there is a boot command parameter that can disable SElinux. This parameter is 'selinux=0' by default, 'selinux=1' enables it. If not you'll have to find another way.
From the kernel config:
config SECURITY_SELINUX_BOOTPARAMHTH,
bool "NSA SELinux boot parameter"
depends on SECURITY_SELINUX
default n
help
This option adds a kernel parameter 'selinux', which allows SELinux
to be disabled at boot. If this option is selected, SELinux
functionality can be disabled with selinux=0 on the kernel
command line. The purpose of this option is to allow a single
kernel image to be distributed with SELinux built in, but not
necessarily enabled.
If you are unsure how to answer this question, answer N.
config SECURITY_SELINUX_BOOTPARAM_VALUE
int "NSA SELinux boot parameter default value"
depends on SECURITY_SELINUX_BOOTPARAM
range 0 1
default 1
help
This option sets the default value for the kernel parameter
'selinux', which allows SELinux to be disabled at boot. If this
option is set to 0 (zero), the SELinux kernel parameter will
default to 0, disabling SELinux at bootup. If this option is
set to 1 (one), the SELinux kernel parameter will default to 1,
enabling SELinux at bootup.
If you are unsure how to answer this question, answer 1.
config SECURITY_SELINUX_DISABLE
bool "NSA SELinux runtime disable"
depends on SECURITY_SELINUX
default n
help
This option enables writing to a selinuxfs node 'disable', which
allows SELinux to be disabled at runtime prior to the policy load.
SELinux will then remain disabled until the next boot.
This option is similar to the selinux=0 boot parameter, but is to
support runtime disabling of SELinux, e.g. from /sbin/init, for
portability across platforms where boot parameters are difficult
to employ.
If you are unsure how to answer this question, answer N.
Simon
