Block All Websites - allow WhiteList

Hey Guys,

 

A Customer of ours wishes to Block access to ALL external Websites and only allow particular ones in  the Trusted Sites List.

 

I wish to know if it is at all possible to block all the websites and if so, how this could be done.

 

The Client has On Premise - F-Sercure Policy Manager.

Comments

  • VadVad Posts: 1,051 F-Secure Employee

    Hello Bugeja,

     

    Unfortunately, it is not possible in current versions - Browsing protection Disallowed sites list has higher priority, than Trusted sites list.

     

    Best regards,

    Vad

  • Hi,

    second possibility could be to use FS FW rule. Just add two rules:

    1. allow outgoing http/https traffic to internal IP ranges
    2. deny out (in should be blocked already Smiley Happy ) http/https to AL IPs

    If you need add some "trusted" external site later you will add next rule:

           Allow http/https to "site name - IP - IP range". Notify, this rule must be before the deny rule 2. above.

     

    Might it be solution for your case?

     

    Br, Jachym

  • etomcatetomcat Posts: 1,318 Superuser

    Hello,

     

    The problem is, not only human-readable websites use HTTP(S), so there may be "collateral damage" if such a non-contextual blocking rule is implemented.

     

    If the customer wishes to block all web browsing towards the public net, that's is best solved by installing a gateway level filtering device, for example a UTM.

     

    Yours Sincerely: Tamas Feher, Hungary.

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