Advanced IP blocking, role-based security, and attack detection for NestJS applications

Best-effort discovery of the machine's default gateway and local network IP exclusively with UDP sockets.

A simple HTTP server with security features like IP blocking, rate limiting, and endpoint blocking.

Hardened FetchHandler for the @iso4/sandbox runtime: DNS pinning, host allowlist, private-IP blocking, no auto-redirect

fetch with ssrf protection. dns pinning, private ip blocking, size caps, safe redirects. zero deps

set blocking stdio and stderr ensuring that terminal output does not truncate

A library for parsing IPv4 and IPv6 IP addresses in node and the browser.

WebDriver Proxy for testing rich clients. It block certain calls until Angular is done updating the page under test.

[](https://www.npmjs.com/package/ip)

High Performance Layer 1 / Layer 2 Caching with Keyv Storage

Google Cloud Identity Platform Blocking Functions for Node.js

Offload tasks to a pool of workers on node.js and in the browser

Regular expression for matching IP addresses (IPv4 & IPv6)

A small Node.js module to retrieve the request's IP address

Get your internal IP address

Check if a string is an IP address

SSRF protection for server-side requests: URL validation, private/reserved IP blocking (IPv4 + IPv6), and a fetch wrapper that re-validates every redirect hop.

Modular and reusable API Gateway Firewall with rate limiting, circuit breaker, and IP blocking logic.

A very strict and proper argument parser.

TypeScript definitions for ip