diff --git a/config.php-dist b/config.php-dist
index f7848430a..9d86bddb2 100644
--- a/config.php-dist
+++ b/config.php-dist
@@ -49,6 +49,17 @@
 	define(USE_COMPACT_STYLESHEET, false);
 	// use stylesheet with more compact layout (if combined with two previous 
 	// options may improve UI on small screens)
-	
+
+	define(DAEMON_REFRESH_ONLY, false);
+	// updates to all feeds will only run when the backend script is
+	// invoked with a "daemon" option on the URI stem. An example wget
+	// command line below will invoke an update every 30 minutes, with
+	// output being sent to /dev/null and the timeout set to 10 minutes
+	// so that wget does not time out. Substitute your site name, tt-rss
+	// path, and username/password as necessary.
+	//
+	// */30 * * * * /usr/bin/wget -O /dev/null -T 600 "http://username:password@www.your-site.xxx/tt-rss/backend.php?op=rpc&subop=updateAllFeeds&daemon=1"
+	//
+
 ?>
 
diff --git a/functions.php b/functions.php
index e79ea21cc..e1fc66b0d 100644
--- a/functions.php
+++ b/functions.php
@@ -22,6 +22,10 @@
 
 		if (WEB_DEMO_MODE) return;
 
+		if (! ($_GET["daemon"] && DAEMON_REFRESH_ONLY)) {
+			return;
+		}
+
 		db_query($link, "BEGIN");
 
 		$result = db_query($link, "SELECT feed_url,id,