Use this option if you want to scan the top 1000 ports.
$ nmap -F 10.10.10.10 |
If you want a single specific port, then use -p option.
$ nmap -p 80 10.10.10.10 |
nmap
Check Open Ports Remotely
Here are a few tools to check if ports are open from a remote host.
nc -zvw10 192.168.0.1 22 nmap 192.168.0.1 -p 22 telnet 192.168.0.1 22 |
You may have to install netcat and nmap if missing in your distro.
yum install nc yum install nmap |
Nmap
Here’s how to list all the devices on your network using nmap.
nmap -sn 192.168.0.0/24 |
If nmap is not installed, install it.
yum install nmap apt install nmap |