DNSQuerySniffer
nirsoft.netObserve DNS queries issued by a Windows computer
Observe DNS queries issued by a Windows computer
Collect passive network and routing observations
Combine conversion, page arrangement, and PDF export options
Summarize DNS traffic from live captures or saved packets
Recompress and check PNG images
Measure throughput between controlled network endpoints
Volunteer public relays with an explicit connection-logging policy
Correlate PCAP, Zeek logs and Suricata alerts
Browser PDF processing with a visual workflow builder
A simplified photovoltaic energy-production estimate
Keep persistent interface-traffic totals without packet sniffing
Summarize captured adapter traffic by protocol and endpoints
Extract host inventories and artifacts from packet captures
Visualize traffic as hosts and links that change with activity
Inspect Linux IP traffic and interface activity in a console
Capture wireless traffic through a Mac-friendly interface
Throughput and responsiveness tests from the continuing iperf2 project
Fluid-flow calculators for pipes, valves and measurements
An administered firewall with separated network trust zones
Wi-Fi planning, surveying and troubleshooting in one product family