Mac OSX – What program is using port 8080

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By default, most Java web application servers are listening on port 8080, and it can easily cause the popular 8080 port conflict error. In Mac OSX, you can use sudo lsof -i :8080 | grep LISTEN to find out what program is listening on port 8080 :

In terminal


$ lsof -i :8080 | grep LISTEN

java    42975 mkyong   57u  IPv6 0xf10ca37d995a077f      0t0  TCP *:http-alt (LISTEN)

The name “java” doesn’t tell you anything, to get the detail, ps the java PID 12895 like this :


$ ps -ef 42975

  UID   PID  PPID   C STIME   TTY           TIME CMD
  501 42975 42960   0 12:41PM ??         0:29.84 /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java 
-Dcatalina.base=/Users/mkyong/Documents/workspace-new/.metadata/.plugins/org.eclipse.wst.server.core/tmp1 
-Dcatalina.home=/Users/mkyong/apache-tomcat-8.0.28 
-Dwtp.deploy=/Users/mkyong/Documents/workspace-new/.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps 
-Djava.endorsed.dirs=/Users/mkyong/apache-tomcat-8.0.28/endorsed 
-Dfile.encoding=UTF-8 -classpath /Users/mkyong/apache-tomcat-8.0.28/bin/bootstrap.jar:
/Users/mkyong/apache-tomcat-8.0.28/bin/tomcat-juli.jar:
/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/lib/tools.jar 
org.apache.catalina.startup.Bootstrap start

The Eclipse IDE is using the port 8080.

References

  1. Wikipedia : Lsof
  2. Wikipedia : PS in Unix
  3. Linux – Which application is using port 8080

mkyong

Founder of Mkyong.com, passionate Java and open-source technologies. If you enjoy my tutorials, consider making a donation to these charities.

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Nitin
3 years ago

how can we stop this port being used ? I mean what command line should I use in the terminal of mac

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Helen
9 years ago

Hey, nice post. Thank you very much 🙂
Just a suggestion.
You wrote down “The name “java” doesn’t tell you anything, to get the detail, ps the java PID 12895 like this :”
Maybe you want to write “ps the java PID 42975 like this :”
Hope it helps. Thanks 🙂

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