Extracting information from servers with Shodan

In this section, you will learn the basics of Shodan for obtaining information from port scanning, banner servers, and operating system versions. Instead of indexing the web content, it indexes information about headers, banners, and operating system versions.

Introduction to Shodan

Shodan is an acronym for Sentient Hyper-Optimized Data Access Network. Unlike traditional search engines that crawl the web to display results, Shodan attempts to grab data from ports. The free version provides 50 results. If you know how to use it creatively, you can discover the vulnerabilities of a web server.

Shodan is a search engine that lets you find specific information from routers, servers...