
上QQ阅读APP看书,第一时间看更新
How to do it...
To learn about Shodan, follow the given steps:
- Open your browser and visit https://www.shodan.io:

- We begin by performing a simple search for the FTP services running. To do this we can use the following Shodan dorks: port:"21". The following screenshot shows the search results:

- This search can be made more specific by specifying a particular country/organization: port:"21" country:"IN". The following screenshot shows the search results:

- We can now see all the FTP servers running in India; we can also see the servers that allow anonymous login and the version of the FTP server they are running.
- Next, we try the organization filter. It can be done by typing port:"21" country:"IN" org:"BSNL" as shown in the following screenshot:

Shodan has other tags as well that can be used to perform advanced searches, such as:
More details can be found at https://www.shodan.io/explore.
- net: to scan IP ranges
- city: to filter by city
More details can be found at https://www.shodan.io/explore.