How to kill a process running on particular port in Linux? [closed]

This fuser 8080/tcp will print the PID of the process bound to that port.

And this fuser -k 8080/tcp will kill that process.

Works on Linux only. More universal is use of lsof -i4 (or 6 for IPv6).

General form:

# list the TCP process bound to port PORT
fuser PORT/tcp
# Example: list the TCP process bound to port 8080
fuser 8080/tcp

# list the UDP process bound to port PORT
fuser PORT/udp
# Example: list the UDP process bound to port 8080
fuser 8080/udp

To list any process listening to the port 8080:

lsof -i:8080

To kill any process listening to the port 8080:

kill $(lsof -t -i:8080)

or more violently:

kill -9 $(lsof -t -i:8080)

(-9 corresponds to the SIGKILL - terminate immediately/hard kill signal: see List of Kill Signals and What is the purpose of the -9 option in the kill command?. If no signal is specified to kill, the TERM signal a.k.a. -15 or soft kill is sent, which sometimes isn't enough to kill a process.).

To install lsof, if needed:

sudo apt install lsof

Option 1 A One-liner to kill only LISTEN on specific port:

kill -9 $(lsof -t -i:3000 -sTCP:LISTEN)

Option 2 If you have npm installed you can also run

npx kill-port 3000

One liner, a time saver

kill -9 $(lsof -t -i tcp:8080)

Explanation here: use a combination of lsof and kill

root@localhost:~# lsof -i tcp:8080
COMMAND   PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
java    23672 sine  238u  IPv6 3028222      0t0  TCP localhost:http-alt (LISTEN)

select pid and use kill

kill 23672

You can use the lsof command. Let port number like here is 8090

lsof -i:8090

This command returns a list of open processes on this port.

Something like…

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
ssh 75782 eoin 5u IPv6 0x01c1c234 0t0 TCP localhost:8090 (LISTEN)

To free the port, kill the process using it(the process id is 75782)…

kill -9 75782

This one worked for me. here is the link from the original post: link

If you want to kill a process running on port number 8080 then first you need to find the 8080 port process identification number(PID) and then kill it. Run the following command to find 8080 port number PID:

sudo lsof -t -i:8080

Here,

• sudo - command to ask admin privilege(user id and password).
• lsof - list of files(Also used for to list related processes)
• -t - show only process ID
• -i - show only internet connections related process
• :8080 - show only processes in this port number

So you can now easily kill your PID using following command:

sudo kill -9 <PID>

Here,

• kill - command to kill the process
• -9 - forcefully

You can use one command to to kill a process on a specific port using the following command:

sudo kill -9 $(sudo lsof -t -i:8080)

For more you can see the following link How to kill a process on a specific port on linux

Best way to kill all processes on a specific port;

kill -9 $(sudo lsof -t -i:8080)

This prints to stdout the process ids of everything running on <port_number>:

fuser -n tcp <port_number> 

It also prints some stuff to stderr, so:

fuser -n tcp <port_number> 2> /dev/null

We can then supply these process ids to the kill command:

sudo kill $(fuser -n tcp <port_number> 2> /dev/null)

You could also put this in a function if you do it a lot:

function killport() {
    sudo kill $(fuser -n tcp $1 2> /dev/null)
}

To know the pid of service running on particular port :

netstat -tulnap | grep :*port_num*

you will get the description of that process. Now use kill or kill -9 pid. Easily killed.

e.g

netstat -ap | grep :8080

tcp6       0      0 :::8080       :::*    LISTEN      1880/java 

Now:

kill -9 1880

Remember to run all commands as root

Get the PID of the task and kill it.

lsof -ti:8080 | xargs kill

First you need to do is run (replace with your port number):

fuser -k 3000/tcp

This will release the port. After you run the above command run:

service docker restart

And your problem is resolved.

try like this,

 sudo fuser -n tcp -k 8080

This will kill programs running on port 80

sudo fuser -k 80/tcp

Choose the port number and apply the grep in netstat command as shown below

netstat -ap | grep :7070

Console Output

tcp 0 0 :::7070 :::* LISTEN 3332/java

Kill the service based on PID ( Process Identification Number )

kill -9 3332

Run the following command to find 8080 port number PID:

sudo lsof -t -i:8080

You can now easily kill your PID using following command:

sudo kill -9

You can use one command to to kill a process on a specific port using the following command:

sudo kill -9 $(sudo lsof -t -i:8000)

You can know list of all ports running in system along with its details (pid, address etc.) :

netstat -tulpn

You can know details of a particular port number by providing port number in following command :

sudo netstat -lutnp | grep -w '{port_number}'

ex: sudo netstat -lutnp | grep -w '8080' Details will be provided like this :

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

if you want to kill a process using pid then : kill -9 {PID}

if you want to kill a process using port number : fuser -n tcp {port_number}

use sudo if you are not able to access any.

Linux: You can use this command if you know the port :

netstat -plten | grep LISTEN | grep 8080

AIX:

netstat -Aan | grep LISTEN | grep 8080

You then take the first column (example: f100050000b05bb8) and run the following command:

rmsock f100050000b05bb8 tcpcb

kill process.

1. lsof -i tcp:8000 This command lists the information about process running in port 8000

2. kill -9 [PID] This command kills the process

Linux: First you can find PID of this command if you know the port :

netstat -tulpn 

example:-

 Local Address  Foreign Address  State    PID/Program name

  :::3000       :::*             LISTEN    15986/node 

You then take the kill process. run the following command:

kill -9 PID

Expample: -

kill -9 15986

Simply run this command. Don't forget to replace portnumber, with your port ;)

  kill -9 $(sudo lsof -t -i:portnumber)

kill -9 `fuser 8080/tcp|xargs -n 1`, this commands also kills the process that listens on port 8080 with TCP connection

sudo apt-get install psmisc (or sudo yum install psmisc)
sudo fuser 80/tcp

Result: 80/tcp: 1858 1867 1868 1869 1871

Kill process one by one

kill -9 1858

This is the solution for Windows:

C:\Users\Niroshan>netstat -ano|findstr "PID :8080"

Proto Local Address Foreign Address State PID
TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 18264

taskkill /pid 18264 /f

My personal way to solve this issue can be found is this gist I made, in the gist the first step is to run:

sudo lsof -i [PROTOCOL]:[PORT]

And then run:

sudo kill -9 [PROCESS ID]

I'm working on a Yocto Linux system that has a limited set of available Linux tools. I wanted to kill the process that was using a particular port (1883).

First, to see what ports we are listening to I used the following command:

root@root:~# netstat -lt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 0.0.0.0:hostmon         0.0.0.0:*               LISTEN      
tcp        0      0 localhost.localdomain:domain 0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:9080            0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:1883            0.0.0.0:*               LISTEN      
tcp        0      0 :::hostmon              :::*                    LISTEN      
tcp        0      0 localhost:domain        :::*                    LISTEN      
tcp        0      0 :::ssh                  :::*                    LISTEN      
tcp        0      0 :::1883                 :::*                    LISTEN      

Next, I found the name of the process using port 1883 in the following way:

root@root:~# fuser 1883/tcp
290 
root@root:~# ps | grep 290
  290 mosquitt 25508 S    /usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
12141 root      8444 S    grep 290

As we can see above, it's the program /usr/sbin/mosquitto that's using port 1883.

Lastly, I killed the process:

root@root:~# systemctl stop mosquitto

I used systemctl becuase in this case it was a systemd service.

In my case cent os has some issue in suggested answer. So I used following solution :

  ss -tanp | grep 65432 | head -1 | grep -Po "(?<=pid=).*(?=,)" | xargs kill

1. first check the process netstat -lt
2. check process id fuser <port number>/tcp
3. kill the process running on the port kill <process id>

Other way with Git Bash:

stopProcessByPortNumber() {
port=":${1}"
portStrLine="$(netstat -ano | findstr LISTENING | findstr $port)"
processId="$(grep -oP '(\d+)(?!.*\d)' <<< $portStrLine)"
echo $processId
taskkill -PID $processId -F
}

Just this commands work for me:

ps -aux | grep 8000

and then:

sudo kill <PID>