Nmap: the Network Mapper - Free Security Scanner
(nmap.org)
toolPort scanning and host discovery for network inventory and auditing; ships Npcap for Windows capture
Wireshark • Go Deep
(Wireshark)
toolCaptures live traffic and dissects hundreds of protocols interactively; GPL, cross-platform
Home | TCPDUMP & LIBPCAP
(tcpdump.org)
toolUpstream releases, man pages and filter syntax for the pcap capture library and its analyzer