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    How to update antivirus data behind a firewall ?

    Firewalling
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    • A
      a8556008 last edited by

      Dear All

      How do I do that block everything but anti-virus program update its virus pattern?
      I want to make a rule that computers in LAN can NOT access to internet, but they can update its anti-virus software?
      any suggestions can give me?
      Thank you!

      ps: if my anti-virus is avira antivir pro.

      1 Reply Last reply Reply Quote 0
      • GruensFroeschli
        GruensFroeschli last edited by

        Find a list of all IPs of antivir-servers.
        Create an alias, containing all these IPs.
        Allow this alias.

        1 Reply Last reply Reply Quote 0
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