SHODAN

      Shodan is a search engine that allows us to find the full specifications of a particular computer such as routers, servers, IP and others using a variety of filters that we want to get a scan of the existing port. Shodan can be used to find a host of vulnerabilities.


      Shodan works by taking data from a host banner, then the meta-data captured by the crawler Shodan is given by the client. With this, the obtained information about the server software, support services, etc. to use it then go and register to http://www.shodanhq.com/