What are the commonly used scans of Nmap? Recently, many friends have been asking the editor about this question, so today the editor will bring you an introduction to the commonly used scans of Nmap. For those who are not sure about it, come and take a look.

1.TCP flag scan

-sS TCP SYN scan (anonymous scan, no type by default, root privileges required, fast scan speed)

-sT TCP full connection scan (no root permission is required, the default mode of TCP scan, the port status is the same as SYN, it takes a long time)

2.UDP scanning

-sU (Use -sUV to increase scanning accuracy)

No UDP ports open

3. Protocol scanning

-sO Gets which protocols the server supports

The above is an introduction to commonly used Nmap scans brought by the editor. I hope it can help everyone.