dnstop: Dnstop (Stay on Top of Your DNS Traffic) dnstop: dnstop: DNSTOP is a libpcap application (ala tcpdump) that displays various dnstop: tables of DNS traffic on your network, including tables of source and dnstop: destination IP addresses, query types, top level domains and second dnstop: level domains. dnstop: dnstop: The dnstop tool is written by Duane Wessels and maintained at the dnstop: Measurement Factory dnstop: dnstop: