dnstop is a libpcap application (ala tcpdump) that displays various tables of DNS traffic on your network. Currently dnstop displays tables of:
- Source IP addresses
- Destination IP addresses
- Query types
- Response codes
- Opcodes
- Top level domains
- Second level domains
- Third level domains
dnstop supports both IPv4 and IPv6 addresses.
Website: http://dns.measurement-factory.com/tools/dnstop/
