From: Herbert A. <pos...@nx...> - 2013-04-23 07:55:57
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Hi to all, we use EFW in school and run a content filter (at level 50). Of corse a lot of unwanted keywords are forbidden but "Google" is open and the pupils can search for "sex and porn sites" via "google - pictures" :-( I tried to enter the URL http://www.google.de/imghp?hl=de&tab=wi and http://www.google.de/imghp?hl=de&tab=ii into the list of forbidden URLs - it didn´t work. So I remembered the ACL-List for (Cisco-)Routers and created a filter that is located before the pupils-Filter to close the hole: Filter 1: deny http://www.google.de/imghp?hl=de&tab=wi deny http://www.google.de/imghp?hl=de&tab=ii Filter 2: permit all and not: Filter 2: permit all deny http://www.google.de/imghp?hl=de&tab=wi deny http://www.google.de/imghp?hl=de&tab=ii It didn´t work either. How can I deny porn-pictures or may be all "google-pictures"? Any suggestions? thanks Herbert |