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[BIND] Serial number from master is lower than stored

[BIND] Serial number from master is lower than stored

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Detection Logic

alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[BIND] Serial number from master is lower than stored"; pcre: "/^zone \S+ serial number \S+ received from master \S+ \S ours/"; default_proto: udp; default_dst_port: $DNS_PORT; classtype: configuration-error; program: named; parse_port; parse_src_ip: 1; sid:5000109; rev: 6;)

Field Validations

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