Category: nmap

How to convert CIDR to IP Range using nmap command

1376  admin  
nmap -sL 10.0.0.12/28 | grep "Nmap scan report"

Nmap scan report for 10.0.0.0
Nmap scan report for 10.0.0.1
Nmap scan report for 10.0.0.2
Nmap scan report for 10.0.0.3
Nmap scan report for 10.0.0.4
Nmap scan report for 10.0.0.5
Nmap scan report for 10.0.0.6
Nmap scan report for 10.0.0.7
Nmap scan report for 10.0.0.8
Nmap scan report for 10.0.0.9
Nmap scan report for 10.0.0.10
Nmap scan report for 10.0.0.11
Nmap scan report for 10.0.0.12
Nmap scan report for 10.0.0.13
Nmap scan report for 10.0.0.14
Nmap scan report for 10.0.0.15

nmap -sL 10.0.0.12/28 | grep "Nmap scan report" |grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
… Read the rest

How to create port listener on Linux

1141  admin  
(last edited )

Install nc if needed

yum install nc

Run listener on port 3000

nc -l 3000 &
nc -l -k 3000 &

where -k is –keep-open will keep connection opened and allows multiple connections in listen mode

Check on the server’s side:

netstat -tunap |grep :3000

Output:

tcp        0      0 0.0.0.0:3000                0.0.0.0:*                   LISTEN      82786/nc

Check from local machine:

$ nmap -p 3000 SERVERS_IP_ADDRESS

Output:

Starting Nmap 7.01 ( https://nmap.org
… Read the rest