In the AIX Toolbox for Linux, there is a program called "lsof" which makes finding this information even easier. Will give you a list of process Ids which are using given port. Linux Find Out Which Process Is Listening Upon a Port. This successfully kills the process running on port 8080. Tomcat won't start, and it has worked perfectly before. How do I check that nothing else is using port 8080? Let’s now have a look at the top errors that we see. MOST POPULAR. In this tutorial, we will show you two ways to find out which application is using port 8080 on Linux. WhatsApp. netstat -aon | findstr 8080. sudo apt-get install psmisc sudo fuser 80/tcp 80/tcp: 1858 1867 1868 1869 1871 After finding out, you can either stop or kill the process(es). Port 8080 is a fairly commonly used port for Java apps. Given a port number how can we find which process is using it? Explanation netstat -aon . Always, Java developers need to know which application is using the high demand 8080 port. Red coloured circled area shows the PID (process identifier) Step 2. findstr 8080. findstr is functionally equivalent to grep command on Linux.From … When we covered port scanning a short while ago we discovered how to tell which ports had processes listening upon them, via port scanning. Step 2 - Find the Process/Application Name Using the Given Port Using the Process id Found in Step 1 Syntax lsof lists open files (ls-o-f, get it?). In this tutorial, we will show you two ways to find out which application is using port 8080 on Linux. Hope it helps! I have recently downloaded several versions of Jetty. Here the last column is telling the process id of the process which is using port 8080. My bet would be Tomcat. On my system,it displays following output.My tomcat is up and running on port 8080 within eclipse and I executed following command. if multiple tomcat servers are running on a host and you have to kill that process, but in order to kill that process you need the process id, how do you find the PID of the tomcat listening on port 8080? lsof -i :8080 lists open files on address ending in :8080. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME chrome 2619 qymspace 149u IPv4 71595 0t0 TCP … Explanation. I need to find information for a process that's using a given port number, such as 8080. taskkill /PID typeyourPIDhere /F Since this is a server & you clearly cannot access the content on port 8080, then my suggestion would be to look through your process list for anything Java related. You can the following programs to find out about port numbers and its associated process: netstat command or ss command – a command-line tool that displays network connections, routing tables, and a number of network interface statistics. Run command-line as an Administrator. > netstat -a -o -n. To kill the process we need to find the PID of the process in question. From the output of netstat, findstr will give the lines which have word 8080 in it. Kill a process running on port 8080 1 $ lsof -i :8080 | awk 'NR > 1 {print $2}' | xargs --no-run-if-empty kill. netstat -ano | findstr :8080 taskkill /PID {your process id} /F Possibly also check the contents on ports 8081 as well as port 8000. ** TLDR: Here's a one liner to find and kill a process on a given port (in the below example, port = 8080) if you already know what that process is ** lsof -n -i4TCP:8080 | grep LISTEN | awk '{print $2}' | xargs kill -9 Breakown of the commands Get the process id or PID of the process running a port on your mac by running either of the following commands. In Linux, many times, you want to find out the PID of a process which is listening on a port e.g. Could this be the problem? Using fuser it will give the PID(s) of the multiple instances associated with the listening port. Ask Question Asked 9 years, ... port_number - will list the process running on that port . 1.1 Bring up the terminal, type lsof -i :8080 $ lsof -i :8080 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 10165 mkyong 52u IPv6 191544 0t0 TCP *:http-alt (LISTEN) netstat -ano | findstr :yourPortNumber. Free any port from running process. How can I do that in HP-UX? The output looks like this. Database How to setup and create user and schema in … I am running Windows Vista. Although, the process of opening port 8080 looks really easy, we often get requests from customers about failure of apps on port 8080. Then run the below mention command. in your case, it will be ... $ npx kill-port 3000 8080 8081 Process on port 3000 killed Process on port 8080 killed Process on port … If you need to kill a process manually on Windows it's actually pretty easy. It can be downloaded from IBM's website here: IBM AIX Toolbox for Linux Applications - Alphabetical Listing You can pass it a "-i" followed by a colon and port number and you'll be shown the PID of the process using that port number (use the "grep LISTEN" to get the listening port and not … What we didn't do was learn how to tell which processes were associated with each open port.. Often you'll know which applications are going to be using a particular port, because it's the standard one, or because you know you set it up.