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Anonymous_User
Contributor III
September 21, 2008
Question

Image blocking for blocked URLs

  • September 21, 2008
  • 7 replies
  • 4533 views
Hello! What is the correct method to block questionable images from sites that are currently blocked by Web content filtering? The Web site gets blocked if you try to access it directly, but if you do a Google image search, you can still view images from the ' blocked' site. Thanks!

    7 replies

    abelio
    SuperUser
    abelio
    SuperUser
    September 21, 2008
    Hello, if you don' t want/can block images.google.com, you could use your FTG IPS for " safe search" ; you have 2 signatures: Google.Safe.Search.Off and Yahoo.Safe.Search.Off to take care unless of those 2 search engines. I don' t know how to do the same thing for another engines with no explicit blocking or doing your own custom signatures. regards,
    lmuir
    lmuir
    New Member
    September 30, 2008
    Further from abelio suggestion, if the two primary image search engines used by your users is yahoo or google, you could enable the IPS signature for both the search engines, as well as blocking the category of " Image Search" but exempt yahoo and google. Since the safesearch filtering is done by IPS, it shouldn' t be bypassed by the exemption. Cheers, Lachlan.
    A
    Anonymous_UserAuthor
    Contributor III
    October 3, 2008
    I' m having a problem with blocking images as well. Acutually it blocks them, but users are able to change the safe surf level on Google. How do I prevent them from doing that? Google.Safe.Search.Off was not enabled.
    A
    Anonymous_UserAuthor
    Contributor III
    October 3, 2008
    I got it figured out. I enabled Google.Safe.Search.Off and set it to block. Now if anyone sets their Google preferences to have safe search off, then they can' t search.
    A
    Anonymous_UserAuthor
    Contributor III
    October 10, 2008
    The Google Safe Search works fine, but I can' t get the Yahoo Safe Search to work. I enabled Yahoo.Safe.Search.Off and set it to block. I logged in with a user account to which this profile is applied. I went to Yahoo, turned off the search filter and was still able to search. I did not receive a message from the firewall (logging was enabled) stating that it was turned off.
    p768
    p768
    New Member
    October 15, 2008
    In the protection profile, have you enabled the following option in the Fortigaurd Web Filtering section: Rate images by URL (blocked images will be replaced with blanks)
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