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Bandwidth Usage (MDBS_DAEMON)

In my report for bandwidth usage, I have a single client using a large amount of bandwidth (Over 50GB) with Service - MDBS_DAEMON and Protocol - TCP. Not exactly sure what this traffic could be. Any help is appreciated.


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  • Check /etc/services:
    loginuser@utm:/home/login > grep -i mdbs /etc/services
    mdbs_daemon     800/tcp
    mdbs_daemon     800/udp


    Check some reporting data for confirmation:
    psql reporting -U reporting -c "SELECT * FROM accounting WHERE logday:[:D]ate = '2014-07-13' AND l4_dport = 800;"


    After that it is probably time for tcpdump and/or looking at the host in question because the services association is only by port number and NOT from the deeper properties of the data in the packets.
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  • Check /etc/services:
    loginuser@utm:/home/login > grep -i mdbs /etc/services
    mdbs_daemon     800/tcp
    mdbs_daemon     800/udp


    Check some reporting data for confirmation:
    psql reporting -U reporting -c "SELECT * FROM accounting WHERE logday:[:D]ate = '2014-07-13' AND l4_dport = 800;"


    After that it is probably time for tcpdump and/or looking at the host in question because the services association is only by port number and NOT from the deeper properties of the data in the packets.
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