Shodan Search engine

Shodan Search engine Tutorial 1

Shodan is a search engine that lets the user find specific types of computers (routers, servers, etc.) connected to the internet using a variety of filters. Some have also described it as a search engine of service banners, which are meta-data the server sends back to the client.This can be information about the server software, what options the service supports, a welcome message or anything else that the client can find out before interacting with the server.

Actually Shodan is good search engine for hacking purpose. example i want to find on all cisco products in lk domain(in Sri Lanka) lets try Click me and type on search bar cisco country:lk we can see many devices connect to internet. 

but free edition they give 5 pages only.

Filters 

city: Find devices in a particular city

country: Find devices in a particular country

geo: you can pass it coordinates

hostname: find values that match the hostname

net: search based on an IP or /x CIDR

os: search based on an operating system

port: find particular ports that are open

before / after: find results within a timeframe

Wait for more examples and tricks ......