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

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

pages/linux/semanage-boolean.md

@@ -0,0 +1,17 @@
+# semanage boolean
+
+> Manage persistent SELinux boolean settings.
+> See also: `semanage` for managing SELinux policies, `getsebool` for checking boolean values, and `setsebool` for applying non-persistent boolean settings.
+> More information: <https://manned.org/man/semanage-boolean>.
+
+- List all booleans settings:
+
+`sudo semanage boolean {{-l|--list}}`
+
+- List all user-defined boolean settings without headings:
+
+`sudo semanage boolean {{-l|--list}} {{-C|--locallist}} {{-n|--noheading}}`
+
+- Set or unset a boolean persistently:
+
+`sudo semanage boolean {{-m|--modify}} {{-1|--on|-0|--off}} {{haproxy_connect_any}}`