Disable hostname information in bind9

etc/bind/named.conf.options

@@ -23,5 +23,6 @@ options {
 	listen-on-v6 port 53 { ::1; };
 	listen-on port 53 { 127.0.0.1; };
 	version none;
+	hostname none;
 	validate-except {"onion";};
 };