The **node‑evil‑dns** package lets developers intercept and rewrite DNS lookups inside a Node.js application. By patching the core `dns.lookup` method, it can redirect any requested domain—using exact strings, wildcard patterns, or regular expressions—to a specified IP address, and provides simple APIs to add, remove, or clear these overrides. It’s aimed at developers who need to mock, test, or hijack DNS responses locally, such as during development, testing, or security research.