How to see if the port is occupied?

Step one, Windows view all ports

Click on the beginning of the lower left corner of the computer, then select the Run option, and then we in the pop-up window, enter the "cmd" command, for the command prompt. Then we enter "Netstat-ano" in the window and press ENTER, which shows all the port occupancy. As shown in the figure:

Step two, query the specified port occupancy

In the window, continue to enter the "Netstat-aon|findstr" prompts the port "", such as the small prompts the port is 2080, then the small series on the input command for "NETSTAT-AON|FINDSTR" 2080 "", enter after the list of the PID can be seen, Then according to the PID in the computer task Manager to see the corresponding occupation program, and then close it.

Step three, query PID corresponding to the process

If, after the above steps, we get a PID of 2016, then we can enter the command "TASKLIST|FINDSTR" 2016 "", the first line of the name is the program name, so we know that the program is occupied by the port.

Step four, then we enter the command "taskkill/f/t/im program name" can be.

This is all about how Windows looks at the full range of ports, and I hope it helps.

Plain text version

How Windows looks at Port usage steps are as follows:

Start--run--cmd to the command prompt, enter the Netstat-ano to see all the connected PID in the task Manager to find the corresponding PID program if there is no PID in Task Manager, you can select "View"-"Choose Column" in Task Manager

Often, when we start the application to find that the system needs the port to be occupied by other programs, how to know who owns the port we need, many people have a headache, the following is a very simple method, I hope to be useful for everyone

If we need to determine who's taking up our 9050 ports,

1. Windows platform

Execute under Windows command Line window:

1. View all port occupancy

C:>netstat-ano

Protocol local address external address state PID

TCP 127.0.0.1:1434 0.0.0.0:0 Listening 3236

TCP 127.0.0.1:5679 0.0.0.0:0 Listening 4168

TCP 127.0.0.1:7438 0.0.0.0:0 Listening 4168

TCP 127.0.0.1:8015 0.0.0.0:0 Listening 1456

TCP 192.168.3.230:139 0.0.0.0:0 Listening 4

TCP 192.168.3.230:1957 220.181.31.225:443 established 3068

TCP 192.168.3.230:2020 183.62.96.189:1522 established 1456

TCP 192.168.3.230:2927 117.79.91.18:80 established 4732

TCP 192.168.3.230:2929 117.79.91.18:80 established 4732

TCP 192.168.3.230:2930 117.79.91.18:80 established 4732

TCP 192.168.3.230:2931 117.79.91.18:80 established 4732

2. View the usage of the specified port

C:>netstat-aon|findstr "9050"

Protocol local address external address state PID

TCP 127.0.0.1:9050 0.0.0.0:0 Listening 2016

P: See, the port is occupied by process number 2016, continue with the following command: (You can also see the PID corresponding process in Task Manager)

3. View the PID corresponding process

C:>tasklist|findstr "2016"

Image name PID session name Session # Memory usage

========================= ======== ================

Tor.exe 2016 Console 0 16,064 K

P: It's clear that Tor is taking up your port.

4. Conclusion of the process

c:>taskkill/f/t/im Tor.exe

Some friends feel the input command is more troublesome, you can use some auxiliary software (CurrPorts, Yapp Port scanner, pan-China port view tool, native port query) to view the port occupancy.