Index: branches/5.1.x/core/kernel/utility/debugger.php
===================================================================
diff -u -N -r13989 -r14022
--- branches/5.1.x/core/kernel/utility/debugger.php	(.../debugger.php)	(revision 13989)
+++ branches/5.1.x/core/kernel/utility/debugger.php	(.../debugger.php)	(revision 14022)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: debugger.php 13989 2010-10-19 09:01:22Z alex $
+* @version	$Id: debugger.php 14022 2010-10-25 17:44:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -163,6 +163,10 @@
 			 */
 			function ipMatch($ip_list, $separator = ';')
 			{
+				if ( !isset($_SERVER['REMOTE_ADDR']) ) {
+					return false;
+				}
+
 				$ip_match = false;
 				$ip_addresses = $ip_list ? explode($separator, $ip_list) : Array ();
 				foreach ($ip_addresses as $ip_address) {
Index: branches/5.1.x/core/kernel/globals.php
===================================================================
diff -u -N -r13559 -r14022
--- branches/5.1.x/core/kernel/globals.php	(.../globals.php)	(revision 13559)
+++ branches/5.1.x/core/kernel/globals.php	(.../globals.php)	(revision 14022)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: globals.php 13559 2010-05-12 09:36:46Z alex $
+* @version	$Id: globals.php 14022 2010-10-25 17:44:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -551,6 +551,10 @@
 	 */
 	function ipMatch($ip_list, $separator = ';')
 	{
+		if ( !isset($_SERVER['REMOTE_ADDR']) ) {
+			return false;
+		}
+
 		$ip_match = false;
 		$ip_addresses = $ip_list ? explode($separator, $ip_list) : Array ();
 		foreach ($ip_addresses as $ip_address) {
Index: branches/5.1.x/tools/cron.php
===================================================================
diff -u -N -r13919 -r14022
--- branches/5.1.x/tools/cron.php	(.../cron.php)	(revision 13919)
+++ branches/5.1.x/tools/cron.php	(.../cron.php)	(revision 14022)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: cron.php 13919 2010-09-06 10:48:14Z alex $
+* @version	$Id: cron.php 14022 2010-10-25 17:44:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -12,8 +12,9 @@
 * See http://www.in-portal.org/license for copyright notices and details.
 */
 
-	// Use this line to invoke from cron.
-	// wget http://<server_address>/tools/cron.php -O /dev/null > /dev/null 2>&1
+	// Use either of lines above to invoke from cron:
+	// */10 * * * * wget http://<server_address>/tools/cron.php -O /dev/null > /dev/null 2>&1
+	// */10 * * * * /usr/bin/php /path/to/site/tools/cron.php
 
 	$start = getmicrotime();