tomcat by 44 comments

How to change Tomcat default port ?

Tomcat by default runs on port number 8080, However there is high chance get a port conflict with others program. Sometime we just need to change the Tomcat port number.

Steps of changing the Tomcat Port

1) Locate server.xml in {Tomcat installation folder}\ conf \

2) Find following similar statement


 <!-- Define a non-SSL HTTP/1.1 Connector on port 8180 -->
    <Connector port="8080" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" />

or


    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8080" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />

3) About Tomcat’s server.xml file cites it’s runs on port 8080. Change the Connector port=”8080″ port to any other port number.

For example


 <Connector port="8181" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />

Above statement instruct Tomcat server runs on port 8181.

4) Edit and save the server.xml file. Restart Tomcat. Done

44 comments on “How to change Tomcat default port ?”

  2. Hi

    We have configured TOMEE ( apache-tomee-plus-7.0.5) in redhat linux. The situation here is we forced to use http port number as 80 instead of 8080 in the server.xml config file.

    When we run startup.sh script with “root” user , the server is started fine without any issues. if i try to use my user id to start the server giving error “Failed to initialize connector” as below.

    Kindly help me how to fix this issue.

    11-Jun-2019 22:47:36.749 INFO [main] sun.reflect.DelegatingMethodAccessorImpl.invoke Initializing ProtocolHandler [“http-nio-10.177.122.10-80”]
    11-Jun-2019 22:47:36.757 SEVERE [main] sun.reflect.NativeMethodAccessorImpl.invoke Failed to initialize connector [Connector[HTTP/1.1-80]]
    org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-80]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:549)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:875)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:632)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:655)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:309)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
    Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:995)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
    … 12 more
    Caused by: java.net.SocketException: Permission denied
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:463)
    at sun.nio.ch.Net.bind(Net.java:455)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1086)
    at org.apache.tomcat.util.net.AbstractJsseEndpoint.init(AbstractJsseEndpoint.java:268)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:581)
    at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:68)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:993)
    … 13 more

    11-Jun-2019 22:47:36.758 INFO [main] sun.reflect.DelegatingMethodAccessorImpl.invoke Initializing ProtocolHandler [“ajp-nio-8009”]

    Reply

  4. i have changed the port no 8080 to 8181 but server.xml file is not saving . It is showing the error as acess is denied. help me for this..

    Reply

  6. Hi ,
    How do i change the new port number in java file for my Systest/Regression Test environment for my application.String appServerURL = “AppServer://tdcs0645.test.intranet:3157/Regression_AS”; In my java code located the place and changed the port number .Even after building the code i am getting failure response.

    Reply

  7. HI..

    How do i use different port for different application running on the same tomcat?
    My 8080 is used by Jenkins i want to deploy one more application which uses TomCat but i want some different posr can some one help me on this?

    Reply

  8. Hi,
    We recently deployed Tomcat 6 to Windows Server 2012 and the applications are being accessed via port 80, even though the server.xml has 8080 as its default port. I was wondering how this is possible.

    *Note: the server has IIS enabled and the default port has been changed from 80 to some other port.

    Reply

  11. hello freind,

    Please help me…I have tomcat in xampp whose default port no=8080 but at that port I am running oracle…when I am trying to change the port no of tomcat…again it is saying that tomcat is in 8080 port no but it is not so..

    Here is the snapshot of server.xml where i changed to 9000….is it ok.


    <!–
    –>

    Reply

  12. I like how Mr. Mkyong give a good simple explained that help and i will also help other as a developer.
    Thanks…Thanks…Thanks.

    Reply

  15. Great guide but I had to change the debug port (default 8000) from startup.bat. Now I can run 2 instances of tomcat in parallel. Thank you !

    Reply

  19. hi ,
    I have changed my apache tomcat port no to 8181 and 9090 but server was not able to start.
    I have also checked log files and it shown BindException can you suggest me how to get rid of it.

    Reply

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  25. Thanks for the article. But I wonder if it’s possible “not to give any port number”???
    I mean:
    At the beginning, My port was like:
    http://localhost:8080/
    <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000"
    I could change the 8080 port to 8181 e.g. but it didn't work when I try not to set any.. like this:
    <Connector port="" protocol="HTTP/1.1" connectionTimeout="20000"
    It gives me this error:

    Access forbidden!

    ——————————————————————————–

    New XAMPP security concept:

    Access to the requested directory is only available from the local network.

    This setting can be configured in the file "httpd-xampp.conf".

    ——————————————————————————–
    Do you have any idea about not to set any port?
    Thanks..

    Reply

    1. Buenas, tengo el mismo problema, si lo llegastes a solucionar, me podrias indicar cual fue la solucion.!!!!!!!!!!!!!! Muchas gracias de antemano

      Reply

  33. Hi.

    I have a problem.
    I’ve changed the port in server.xml because I have this port with other application.
    I start tomcat server from catabalina.bat perfect in the new port.
    I change the port for tomcat in XAMP.INI with the new port.
    Restart the computer.
    And I try again to start tomcat server from XAMP console but I see log as “Busy port – Tomcat 8080”.
    The tomcat server start but I want to avoid this message in the xamp console.

    What Can I do?

    Reply

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