Network Diagnostic (11)

• SSL Server Test (Powered by Qualys SSL Labs) (ssllabs.com) tool
  free online deep analysis of any public HTTPS server's TLS configuration, protocols and ciphers
  TLS #
• Julia Evans (Julia Evans) personal-site
  posts and zines on the terminal, man pages, tcpdump and dig, git internals and SQLite
  Command Line Hacker Culture #
• iPerf - The TCP, UDP and SCTP network bandwidth measurement tool (iperf.fr) tool
  TCP, UDP and SCTP throughput, loss and jitter measurement between two hosts, BSD-licensed
  Load Testing Performance Analysis #
• BIND 9 Administrator Reference Manual — BIND 9 9.20.26 documentation (bind9.readthedocs.io) reference
  authoritative and resolver setup, zone files, DNSSEC signing and validation, plus dig and named manpages
  DNS DNSSEC #
• DNSViz | A DNS visualization tool (dnsviz.net) tool
  Web visualiser for a zone's DNSSEC authentication chain and resolution path, flagging errors
  DNS DNSSEC #
• Zabbix: The enterprise-class open source observability solution (zabbix.com) tool
  Agent-based monitoring and alerting for hosts, networks and apps; GPL core, paid support and SaaS
  Observability Self Hosting #
• Nmap: the Network Mapper - Free Security Scanner (nmap.org) tool
  Port scanning and host discovery for network inventory and auditing; ships Npcap for Windows capture
  Packet Capture Penetration Testing #
• Wireshark • Go Deep (Wireshark) tool
  Captures live traffic and dissects hundreds of protocols interactively; GPL, cross-platform
  Packet Capture #
• Home | TCPDUMP & LIBPCAP (tcpdump.org) tool
  Upstream releases, man pages and filter syntax for the pcap capture library and its analyzer
  Command Line Packet Capture #
• GitHub - traviscross/mtr: Official repository for mtr, a network diagnostic tool (GitHub) repo
  traceroute and ping in one: probes each hop and prints running loss and latency statistics; GPLv2 C source
  Command Line #
• iperf3 — iperf3 3.21 documentation (software.es.net) reference
  Active TCP/UDP throughput measurement with tunable buffers and JSON output; not compatible with iperf2
  Command Line Performance Analysis #