add info on asterisk.ctl (bug #4864)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6253 65c4cc65-6c06-0410-ace0-fbb531ad65f3

doc/README.asterisk.conf

@@ -52,3 +52,14 @@ quiet = yes | no	; Run quietly (-q)
 ;This option has no command line equivalent
 cache_record_files = yes | no	; Cache record() files in another directory until 				completion record_cache_dir = <dir>
 
+[files]
+; Changing the following lines may compromise your security
+; Asterisk.ctl is the pipe that is used to connect the remote CLI
+; (asterisk -r) to Asterisk. Changing these settings change the
+; permissions and ownership of this file. 
+; The file is created when Asterisk starts, in the "astrundir" above.
+
+;astctlpermissions = 0660
+;astctlowner = root
+;astctlgroup = asterisk
+;astctl = asterisk.ctl