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javajettyvirtualhosthostkaraf

Jetty: set up general host


How can i force Jetty to open all deployed webapps starting from specific virtual host like test.localhost:8080/myapp instead of localhost:8181/myapp?

Here's snippet from jetty.xml:

<Call name="addConnector">
        <Arg>
            <New class="org.eclipse.jetty.server.nio.SelectChannelConnector">
                <Set name="host">
                    <Property name="jetty.host"/>
               </Set>
                <Set name="port">
                    <Property name="jetty.port" default="8181"/>
                </Set>
                ...

... i tried to play with jetty.host value but still no success. :(

How to?


Solution

  • To LISTEN on a specific network interface, you specify that interface either via its IP address (IPv4 or IPv6) or its hostname.

    Since this is a variant of localhost / loopback, then using IP address would be best.

    Eg:

    $ grep localhost /etc/hosts
    127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
    ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
    127.0.1.0   test.localhost
    

    Yes, those hosts are on different IPs, intentionally (and valid for the loopback interface).

    You could then setup the connector, using the jetty-distribution, for test.localhost:8080 by using the command line (this is jetty 9 syntax)

    $ java -jar /path/to/start.jar jetty.host=127.0.1.0 jetty.port=8080
    

    You can also put those command line options into your ${jetty.base}/start.ini as separate lines.

    $ grep -E "jetty\.(host|port)" /path/to/my.base/start.ini
    jetty.host=127.0.1.0
    jetty.port=8080
    

    Once jetty is started, you can see what interface it is listening on

    $ netstat -tlnp | grep 8080
    (Not all processes could be identified, non-owned process info
     will not be shown, you would have to be root to see it all.)
    tcp4       0      0 127.0.1.0:8080          :::*         LISTEN      14480/java