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  • iptables で denied の返答を返さないようにする.
    • 5=REFUSED のレスポンスを DROPする
    • /etc/sysconfig/iptables
      • -A OUTPUT -p udp -m udp --sport 53 -m u32 --u32 "0>>22&0x3C@8&0x0F=5" -j DROP
         

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Last-modified: 2015-06-03 (Wed) 22:40:53 (JST) (3261d) by iseki

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