How To Honor Together With Kill A Procedure Listening On A Port Inwards Linux? Netstat Together With Lsof Ascendency Examples

In Linux, many times, yous desire to find out the PID of a procedure which is listening on a port e.g. if multiple tomcat servers are running on a host as well as yous induce got to kill that process, but inwards lodge to kill that procedure yous withdraw the procedure id, how create yous honor the PID of the tomcat listening on port 8080? There are many Linux commands to honor the procedure using a specific port, but I'll portion what I use. I ever job the netstat ascendence amongst -p option, which displays procedure id of the procedure listening on a port. Btw, netstat is non the entirely ascendence to find all processes using a detail port, yous tin likewise job the lsof command for the same purpose.

If yous remember, nosotros induce got used lsof before to honor all the processes accessing a file but it tin likewise survive used to honor all processes accessing a specific port.

You volition come across the instance of both netstat and lsof commands inwards this article to honor the PID of procedure listening on a specific port inwards Linux.

On the related note, it's really of import for a Java developer to acquire close the Linux operating organisation as well as commands. The to a greater extent than yous know close the Linux Operating organisation as well as unlike vanquish e.g. bash, csh or ksh, the improve yous tin back upwards your Java application.

That's why it's of import to bring together a course of educational activity like Linux Command Line Basics, which provides an fantabulous introduction of essential vanquish commands inwards Linux. It volition non entirely help yous to acquire close key of Linux OS but likewise all of import commands yous withdraw to function efficiently inwards Linux.

Netstat ascendence to honor the PID of procedure listening on a port

So to honor the PID of your Java server listening on port 8080, yous tin job the next Linux command:

$ netstat -nap | grep 8080 (Not all processes could survive identified, non-owned procedure information volition non survive shown, yous would induce got to survive root to come across it all.) tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 25414/java

hither yous go, 25414 is the PID  or procedure id of your tomcat server. Since tomcat is a Java spider web application it started amongst java ascendence as well as that's why yous come across 25414/java.

Remember, if yous are non logged inwards equally root or the user nether which your server is running, yous mightiness come across next error:

No information could survive read for "-p": geteuid()=XXX but yous should survive root

If yous come across this error, as well as therefore but sudo equally the user which is running the tomcat. If yous know how Linux works, then yous tin solve this fault pretty apace but if yous don't as well as therefore yous volition induce got a difficult time.

lsof ascendence instance to honor the processes using a specific port

Here is the instance of the lsof command to listing the procedure listening on a port.

$ lsof -i :8080 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME coffee 25414 appuser 44u IPv4 3733348 TCP *:XXX (LISTEN)

but hollo back to -i option as well as colon (:) before the port like: 8080.

Btw, if yous don't honor the lsof command inwards your PATH, search inwards /usr/sbin, to a greater extent than oft /usr/sbin is non added into user's PATH. In that yous tin run the ascendence equally shown below:

$ /usr/sbin/lsof -i :8080 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME coffee 25414 appuser 44u IPv4 3733348 TCP *:XXX (LISTEN)

It volition display the same result.

Btw, if yous similar the lsof ascendence as well as interested inwards learning its other application, yous should depository fiscal establishment tally my ship service 10 ways to job the lsof ascendence inwards Linux. You tin likewise induce got a hold back at below diagram yesteryear Julia Evans which effectively summarise the diverse options of lsof ascendence inwards Linux:

Summary

Here is the summary of how to honor the procedure listening on a detail port inwards UNIX:

grep, fifty-fifty if yous but hand PID it volition fetch the trouble from netstat output as well as therefore I tin acquire the port on which a detail procedure is listening. Anyway, I volition exhibit yous a duet of to a greater extent than tricks to honor the port on which a detail port is listening inwards adjacent tutorial.

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Thanks for reading this article therefore far. If yous similar this Linux tutorial as well as honor the information useful delight portion amongst your friends as well as colleagues. If yous induce got whatever questions or feedback as well as therefore delight drib a note.

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