How to scan a range of ip addresses?

Question

linux

There is a range of ip addresses in the network (not in LAN). And you need to check them for the openness of port 80. What are the utilities for this in ubuntu? How to do it?

Answer 1

Nmap utility
nmap -v -Pn -p80 192.168.0.1-254
-Pn - do not ping (treat server as available)
-v verbose
-p80 80 port
192.168.0.1-254 range from 192.168.0.1 to 192.168.0.254 Action
name - port scan , legal in Russia
nmap documentation https://nmap.org/man/ru/

Answer 2

read about nmap