#dns
5 pages tagged dns.
idna
Package-level reference for idna on PyPI — IDNA2008 vs UTS46, encode/decode, install, integration with requests / urllib3, alternatives.
nslookup
Query DNS servers for A, AAAA, MX, TXT, NS, PTR, and other resource records from the Windows command prompt — the built-in tool for diagnosing name resolution issues.
networksetup
Script every aspect of macOS network configuration — Wi-Fi joining, DNS servers, proxies, locations, and service order — from a single first-party command-line tool.
Networking Stack
How packets actually move: the OSI and TCP/IP layer models, the BSD socket API, TCP vs UDP, the three-way handshake, MTU/MSS, NAT and port translation, basic IP routing, and the full DNS resolution flow.
dig
Query DNS records of any type from any resolver — A, AAAA, MX, TXT, NS, SOA, SRV, CAA — with formatted output, reverse lookups, and full delegation tracing.