Friends i am explaining this to you because different type of Port scan technique will result into different information gathering and scenerio will be different for each type. Now you all will be thinking why the hell, i am explaining different types of scans when we can simply do a normal port scan using any port scanning tool like NMAP or Free port scanner etc. Port Scanning is accomplished by running port scanner against the host to scan 0 to 65536 potentially available ports on computer. In simple words, Port Scanning is a series of attempts by a hacker or network administrator to examine which ports on a network are open/closed/filtered by attempting to connect to a range of ports and then gathering information from responding open ports to detect what applications or which service is associated or running on those ports.
Lets start with a brief overview of yesterday’s tutorial. Hello friends, in yesterday’s tutorial i have explained Port scanning basics, today i will teach you different types of port scanning and their analysis, drawbacks etc.
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