标签：sha nbsp arch welcome reference engine cts let dir
Shodan is a search engine that lets the user find specific types of computers (web cams, 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.[1] 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.
Shodan collects data mostly on web servers (HTTP/HTTPS - port 80, 8080, 443, 8443), as well as FTP (port 21), SSH (port 22), Telnet (port 23), SNMP (port 161), SIP (port 5060),[2] and Real Time Streaming Protocol (RTSP, port 554). The latter can be used to access webcams and their video stream.[3]
It was launched in 2009 by computer programmer John Matherly, who, in 2003,[4] conceived the idea of searching devices linked to the Internet.[5] The name Shodan is a reference to SHODAN, a character from the System Shock video game series.[4]
标签：sha nbsp arch welcome reference engine cts let dir
原文地址：http://www.cnblogs.com/aGreatMan/p/6934859.html
