What Command Will List Only Current Connections, Including Ip Addresses And Port Numbers?

What command will list only current connections, including IP addresses and port numbers?
netstat-n is the command that can list only the current connections, IP addresses, and port numbers. Let us talk about the netstat utility in detail. netstat is a type of small to network statistics. This is a command tool, it is mainly used to display the appropriate network connections and the port activity on the computer.

The command-line tool is useful to see what kind of service is going to run or presently running on the computer or maybe the server. It also defines the ports which are opened.

Now the netstat is available in the various operating systems. There are some of the option commands that are so small and a bit different. Let us take an example to understand the concept in detail. In this example, we are going to work on the windows computer.

Now at the command prompt let us type the word netstat and press the enter button, presently our computer is not connected to anything, this is the reason for the output to be blank. Instead, if our computers are connected to the other hosts, it shows us the protocol which is being used. It also shows the local addresses, foreign addresses, and also the state of the connection.

So let us connect the computer with a couple of websites. For example yahoo.com,example.com. the computer should also be connected to the FTP server and then we connect it to a couple of the local computers in our home. Now, if we perform the netstat command again, we can see some of the activity in the output. In the command prompt, we can see that certain terms are displaying on the screen. we can see that the TCP is a protocol that is being used. We can also see the local addresses of the computer simultaneously with the port number that is being used for that particular connection.

Two IP addresses can be seen of the websites that where the computer is connected, along with the port names because HTTP is the protocol for the websites. We can also see the FTP site to which we are connected. And we can see the two computers that are connected to the home.

Netstat can be combined with the subcommands or the switches to change the output. Let us take an example to understand in detail about the netstat. The netstat with the netstat -n switch, will show the same output as the netstat. But it shows only the numbers but not the names.

Let perform the netstat command on the command prompt, if we observe we can see that the output is not instant where output runs slow in the form of the line by line. The main purpose for this is because it using the DNS to resolve the names and it takes some time to do this, now we can see that it showing the names of the ports. If we use netstat – n the output is very fast.