scry

Fast, MIT-licensed IP/port scanner written in Go. Single static binary for Linux, Windows, and macOS. TCP connect by default — no privileges, no CGO, no libpcap. Optional SYN mode on Linux for speed on trusted hardware.

What it does

• Scans IP addresses, ranges, CIDRs, hostnames, and @file target lists.
• Three output formats: human (coloured per-host blocks), json (NDJSON for pipelines), and grep (one line per host).
• Runs Lua 5.1 scripts against open ports with a curated scry.* API — TCP stateless or stateful, UDP, TLS + cert introspection, DNS, hex.
• Bundled scripts: http-title, ssh-banner, tls-cert-info, redis-ping, smb-version.
• Reverse DNS in parallel, optional banner grab, live progress on stderr.

Pages

• Install
• Usage & examples
• Output formats
• Scripting
• SYN scanning
• Config file
• Deferred / roadmap
• Full plan & decision log

Quick start

scry 192.168.1.0/24 -p top100 --up
scry 10.0.0.1-50 -p 22,80,443 --banner
scry 10.0.0.0/24 -p top100 -o json | jq '.results[] | select(.state=="open")'

License

MIT. See LICENSE.