SHODAN is a search engine that lets you find specific computers (routers, servers, etc.) using a variety of filters. Some have also described it as a public port scan directory or a search engine of banners.
SHODAN also lets you use boolean operators (‘+’, ‘-’ and ‘|’) to include/ exclude certain terms. By default, every search term has a ‘+’ operator assigned to it.
In addition to boolean operators, there are special filters to narrow down the search results.
SHODAN queries related to vulnerable servers, systems, and applications. To use shodan you must register your account at www.shodanhq.com
Some also describe it as a container scanner search engine directories or banners, Shodan index most of the data taken from the 'banner', which is the meta-data server sends back to the client. It can be information about the server software, which supports the choice of services, a welcome message or any of the clients want to know before interacting with the server.
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weedyaaan., guanteng tenaan.,
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