booleans - Policy booleans enable runtime customization of SELinux policy.
DESCRIPTION
This manual page describes SELinux policy booleans.
The SELinux policy can include conditional rules that are enabled or
disabled based on the current values of a set of policy booleans.
These policy booleans allow runtime modification of the security
policy without having to load a new policy.
For example, the boolean httpd_enable_cgi allows the httpd daemon to
run cgi scripts if it is enabled. If the administrator does not want
to allow execution of cgi scripts, he can simply disable this boolean
value.
The policy defines a default value for each boolean, typically false.
These default values can be overridden at boot-time based on the
settings in the
/etc/selinux/SELINUXTYPE/booleans file, where
SELINUXTYPE is the type of policy currently being run on the system as
defined in the
/etc/selinux/config file. The
system-config-securitylevel tool provides an interface for altering
the settings in this file. The
load_policy(8) program will preserve
current boolean settings upon a policy reload by default, or can
optionally reset booleans to the boot-time defaults via the -b option.
Boolean values can be listed by using the
getsebool(8) utility and passing it the -a option.
Boolean values can also be changed at runtime via the
setsebool(8) utility or the
togglesebool utility. These utilities only change the
current boolean value and do not affect the boot-time settings.
AUTHOR
This manual page was written by Dan Walsh <dwalsh@redhat.com>.
The SELinux conditional policy support was developed by Tresys Technology.