Nmap is a free network scanning software for Windows, Linux, macOS, etc. which can be used to check ping status, scan network, check uptime of any host, etc.

coturn-7868cbcd8f-959kc:/# nmap -n -PN -sT -sU -p- 127.0.0.1 Starting Nmap 7.93 ( https://nmap.org ) at 2023-05-18 05:16 UTC Nmap scan report for 127.0.0.1 Host is up (0.000058s latency). Not shown: ...

Execute NMAP scan against a host or subnet Type: investigate Read only: True If udp_scan is false (it is by default), this action will use the following NMAP command line options: nmap -oX - -sV ...

Use -sU to conduct a UDP scan. So a Syn scan would be: nmap -sS 1.1.1.1 and a Connect scan would be nmap -sT 1.1.1.1 To specify what ports to scan, use -p. For example, you can use a comma separated ...

Nmap has established itself as a premier, free, open-source network mapping tool. There are alternatives that are also free, though they vary in their sophistication and ease of use.

The fingerprints help speed up overall scan times. Nmap 7.40 also adds service probe and UDP payload for Quick UDP Internet Connection, a secure transport developed by Google that is used with HTTP/2.

In order to do that, Nmap needs to be ran with root privileges in order to craft the raw packets needed for the task. In fact, many scan types require it. $ sudo nmap -sS -O 50.22.84.10 ...