The open‑source tool asn by nitefood (GitHub) is a powerful command line utility for OSINT and incident response. Feed it an IP, hostname, or ASN and it returns a detailed breakdown. Autonomous system info, IP reputation, geolocation, BGP stats, route path, RPKI validation, and even abuse contacts. It can also act as a lightweight traceroute server, letting you run traces from a browser or remote terminal.

You can install it on Linux, macOS, FreeBSD, or even Alpine via package managers. In terminal mode it delivers interactive analysis; in server mode it can serve HTML or JSON output for lookup and tracing. It integrates with Shodan API and supports bulk targets, JSON output, and scan metadata, all without sending traffic directly to the target host by using passive methods and third‑party APIs.

For anyone mapping infrastructure, exploring network routes, or investigating IP space, it’s a low‑setup, deeply detailed tool.

#ASN #NetworkRecon #TracerouteTools #OSINT #CyberSecurity #InternetMapping

Wardialing was the original hunt for connectivity, dialing thousands of numbers to find active modems and hidden systems. Then came wardriving, swapping phone lines for WiFi signals. With a laptop and a car, hackers mapped unsecured networks across neighborhoods and cities, often marking finds with chalk on curbs and sidewalks.

But there was another evolution. Mapping the internet itself. Tools like Nmap and later ZMap allowed users to scan vast ranges of IP addresses, searching for live hosts, open ports, and exposed services. This wasn’t just about poking around, it was about understanding the shape of the internet, finding forgotten systems, and sometimes discovering massive vulnerabilities. Whether from a modem, a car, or a data center, the spirit remains the same: explore, map, learn.

#Wardialing #Wardriving #InternetMapping #NetworkExploration #HackerHistory