I would like to see what ports are open on my machine, e.g. what ports my machine is listening on. E.g. port 80 if I have installed a web server, and so on.
Is there any command for this?
Nmap ("Network Mapper") is a free and open source utility for network exploration or security auditing
Other good ways to find out what ports are listenting and what your firewall rules are:
To list open ports use the
In the above example three services are bound to the loopback address.
IPv4 services bound to the loopback address "127.0.0.1" are only available on the local machine. The equivalent loopback address for IPv6 is "::1". The IPv4 address "0.0.0.0" means "any IP address", which would mean that other machines could potentially connect to any of the locally configured network interfaces on the specific port.
Another method is to use the
For more details see