doc en: add notification about well known port

Reported by Kosuke Asami. Thanks!!!
groonga · Jun 21, 2013 · 1541c19 · 1541c19
1 parent 44bbedc
commit 1541c19
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/doc/source/tutorial/network.txt b/doc/source/tutorial/network.txt
@@ -111,9 +111,13 @@ The following command runs an HTTP server that listens on the port number 80.
 
 Execution example::
 
-  % groonga -p 80 -d --protocol http /tmp/groonga-databases/introduction.db
+  % sudo groonga -p 80 -d --protocol http /tmp/groonga-databases/introduction.db
   %
 
+.. note::
+  Note that you must have root privileges if you listen on the port number 80 (well known port).
+  There is no such a limitation about the port number 1024 or over.
+
 How to send a command to an HTTP server
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^