setenforce, {get,set}sebool, semanage-{boolean,port,permissive}: add page (#12834)

Co-authored-by: spageektti <git@spageektti.cc>

pages/linux/setenforce.md

@@ -0,0 +1,14 @@
+# setenforce
+
+> Toggle SELinux between enforcing and permissive modes.
+> To enable or disable SELinux, edit `/etc/selinux/config` instead.
+> See also: `getenforce`, `semanage-permissive`.
+> More information: <https://manned.org/man/setenforce>.
+
+- Put SELinux in enforcing mode:
+
+`setenforce {{1|Enforcing}}`
+
+- Put SELiunx in permissive mode:
+
+`setenforce {{0|Permissive}}`