booleans - Policy booleans enable runtime customization of SELinux policy
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 via local settings created via the
(8) utility, using -P
to make the setting persistent
across reboots. The system-config-securitylevel
tool provides a
graphical interface for altering the settings. The load_policy
program will preserve current boolean settings upon a policy reload by
default, or can optionally reset booleans to the boot-time defaults via the
Boolean values can be listed by using the getsebool
(8) utility and
passing it the -a
Boolean values can also be changed at runtime via the setsebool
utility or the togglesebool
(8) utility. By default, these utilities
only change the current boolean value and do not affect the persistent
settings, unless the -P
option is used to setsebool.
This manual page was written by Dan Walsh <firstname.lastname@example.org>. The SELinux
conditional policy support was developed by Tresys Technology.