npc problems npc post request 403 forbidden

[jinxiao2010]

it's a strange problems , when i finished my installation of nagios and npc, i see the log of ndo2db ,it seems alright. But when i check the frontend page , it showed 403 forbidden

Code: Select all

 POST http://url/cacti/plugins/npc/npc.php?module=hosts&action=getHosts&p_state=not_ok 403 (Forbidden)Ext.lib.Ajax.asyncRequest @ ext-base.js:10Ext.lib.Ajax.request @ ext-base.js:10Ext.extend.request @ ext-all-debug.js:5288Ext.extend.load @ ext-all-debug.js:11316Ext.extend.load @ ext-all-debug.js:10815Ext.extend.reload @ ext-all-debug.js:10824(anonymous function) @ ext-base.js:9
ext-base.js:10 POST http://url/cacti/plugins/npc/npc.php?module=services&action=getServices&p_state=not_ok 403 (Forbidden)

what does it means ? which file i should change the permission ? pls help thanks