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networking (22)

anyio — Structured Concurrency Across asyncio and trio

Package-level reference for anyio on PyPI — install, version policy, task groups, cancel scopes, and the API that runs identically on asyncio and trio.
pip package async concurrency networking

boto3 — AWS SDK for Python

Package-level reference for boto3 on PyPI — install, sessions, clients vs resources, paginators, version policy, and alternatives.
pip package aws cloud sdk

certifi — Mozilla CA Certificate Bundle

Package-level reference for certifi on PyPI — what the bundle contains, install, integration with requests / urllib3 / ssl, alternatives.
pip package tls security http

httpx — Async-Capable HTTP Client

Package-level reference for httpx on PyPI — install variants, version policy, extras, transport options, and alternatives.
pip package http async networking

idna — Internationalised Domain Names

Package-level reference for idna on PyPI — IDNA2008 vs UTS46, encode/decode, install, integration with requests / urllib3, alternatives.
pip package dns unicode networking

protobuf — Google Protocol Buffers for Python

Package-level reference for the protobuf package on PyPI — install, backend selection (upb / pure-Python / C++), .proto compilation, and gRPC integration.
pip package serialization rpc

requests — The Most-Downloaded Python Package

Package-level reference for the requests HTTP client on PyPI — install variants, version policy, extras, and alternatives.
pip package http networking

urllib3 — Low-Level HTTP Client

Package-level reference for urllib3 on PyPI — connection pooling, retries, TLS, version policy, and alternatives.
pip package http networking tls

z/OS FTP Reference

FTP from TSO, batch FTP via JCL, SITE parameters, transfer modes, FTPS, FTP.DATA configuration, and JES spool transfers.
ftp zos mainframe networking file-transfer web-researched

z/OS TCP/IP — NETSTAT, PING, Profile, and Diagnostics

Drive the z/OS Communications Server TCP/IP stack — NETSTAT variants, PING, TRACERTE, RESOLVE, PROFILE.TCPIP configuration, OMPROUTE, and SSH from z/OS UNIX, with end-to-end troubleshooting recipes.
zos mainframe tcpip networking netstat communications-server web-researched

aria2c Download Utility

Fast, multi-protocol download utility supporting HTTP(S), FTP, SFTP, BitTorrent, and Metalink with resumption and parallel connections.
aria2c download http ftp torrent networking cli web-researched

curl — HTTP Client

Transfer data with URLs. Covers HTTP methods, headers, authentication, forms, TLS, cookies, proxies, timeouts, parallel downloads, and a comprehensive recipe collection.
curl http api networking cli rest download web-researched

dig — DNS Lookup Toolkit

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.
dig dns networking cli debug web-researched

ip — iproute2 Networking

Modern replacement for ifconfig, route, and arp. Inspect and configure interfaces, addresses, routes, neighbour tables, and network namespaces with the iproute2 ip command.
ip iproute2 networking sysadmin cli routing web-researched

lsof & ss — Open Files and Sockets

Diagnose what's holding a port, which files a process has open, and the state of every TCP/UDP socket using lsof and the modern iproute2 ss utility.
lsof ss lsfd sockets networking processes debug cli sysadmin web-researched

ps, ss & netstat — Processes & Sockets

Inspect running processes (ps), list network connections and listening ports (ss / netstat). Covers output formats, filtering, process trees, and socket state analysis.
ps netstat ss processes networking sockets cli sysadmin web-researched

SSH Tunnels & Port Forwarding

Local, remote, and dynamic SSH tunnels — port forwarding, SOCKS proxies, jump hosts, ssh_config directives, agent forwarding, autossh persistence, post-quantum key exchange, and operational recipes.
ssh networking tunnels security socks proxy bastion autossh ssh-agent post-quantum web-researched

wget — File Downloader

Non-interactive network downloader. Covers single and batch downloads, recursive mirroring, authentication, resuming, rate limiting, and site archiving.
wget http download networking cli mirror wgetrc wget2 scraping cookies web-researched

xidel Web Scraping & Data Extraction

Extract data from HTML, XML, and JSON using XPath, CSS selectors, pattern matching, and JSONiq from the command line.
xidel webscraping xpath html xml json data-extraction cli web-researched

Networking Stack — OSI/TCP-IP, Sockets, TCP/UDP, MTU, NAT, DNS

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.
networking osi tcp-ip sockets tcp udp mtu nat routing dns sysadmin

httpx — Modern HTTP Client

Make sync and async HTTP requests with httpx. Covers GET/POST, async usage, HTTP/2, streaming, and how it compares to requests.
python httpx http api async networking

requests — HTTP for Humans

Make HTTP requests in Python with the requests library. Covers GET/POST, JSON, sessions, authentication, retries, and common pitfalls.
python requests http api networking