Setting up the admin password.

Process:

1. Edit jetty.xml

To begin you are going to edit the file “server/etc/jetty.xml”.  However, if you aren't sure of the location of jetty.xml, run the command

find / -name jetty.xml -type f

For me, the output was

/opt/solr-8.11.1/server/etc/jetty.xml

Edit the file jetty.xml, by adding it before the Configure tag ends

<Callname="addBean">
   <Arg>
       <New class="org.eclipse.jetty.security.HashLoginService">
          <Set name="name">Test Realm</Set>
          <Set name="config"><SystemProperty name="jetty.home" default="."/>/etc/realm.properties</Set>
          <Set name="refreshInterval">0</Set>
       </New>
    </Arg>
</Call>

View the jetty.xml file

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">

<!-- =============================================================== -->
<!-- Configure the Jetty Server                                      -->
<!--                                                                 -->
<!-- Documentation of this file format can be found at:              -->
<!-- http://wiki.eclipse.org/Jetty/Reference/jetty.xml_syntax        -->
<!--                                                                 -->
<!-- =============================================================== -->


<Configure id="Server" class="org.eclipse.jetty.server.Server">

  <!-- =========================================================== -->
  <!-- Configure the Server Thread Pool.                           -->
  <!-- The server holds a common thread pool which is used by      -->
  <!-- default as the executor used by all connectors and servlet  -->
  <!-- dispatches.                                                 -->
  <!--                                                             -->
  <!-- Configuring a fixed thread pool is vital to controlling the -->
  <!-- maximal memory footprint of the server and is a key tuning  -->
  <!-- parameter for tuning.  In an application that rarely blocks -->
  <!-- then maximal threads may be close to the number of 5*CPUs.  -->
  <!-- In an application that frequently blocks, then maximal      -->
  <!-- threads should be set as high as possible given the memory  -->
  <!-- available.                                                  -->
  <!--                                                             -->
  <!-- Consult the javadoc of o.e.j.util.thread.QueuedThreadPool   -->
  <!-- for all configuration that may be set here.                 -->
  <!-- =========================================================== -->
  <Arg name="threadpool">
    <New id="threadpool" class="com.codahale.metrics.jetty9.InstrumentedQueuedThreadPool">
      <Arg name="registry">
        <Call id="solrJettyMetricRegistry" name="getOrCreate" class="com.codahale.metrics.SharedMetricRegistries">
          <Arg>solr.jetty</Arg>
        </Call>
      </Arg>
    </New>
  </Arg>

  <Get name="ThreadPool">
    <Set name="minThreads" type="int"><Property name="solr.jetty.threads.min" default="10"/></Set>
    <Set name="maxThreads" type="int"><Property name="solr.jetty.threads.max" default="10000"/></Set>
    <Set name="idleTimeout" type="int"><Property name="solr.jetty.threads.idle.timeout" default="120000"/></Set>
    <Set name="stopTimeout" type="int"><Property name="solr.jetty.threads.stop.timeout" default="60000"/></Set>
    <Set name="detailedDump">false</Set>
  </Get>


  <!-- =========================================================== -->
  <!-- Http Configuration.                                         -->
  <!-- This is a common configuration instance used by all         -->
  <!-- connectors that can carry HTTP semantics (HTTP, HTTPS, SPDY)-->
  <!-- It configures the non wire protocol aspects of the HTTP     -->
  <!-- semantic.                                                   -->
  <!--                                                             -->
  <!-- This configuration is only defined here and is used by      -->
  <!-- reference from the jetty-http.xml, jetty-https.xml and      -->
  <!-- jetty-spdy.xml configuration files which instantiate the    -->
  <!-- connectors.                                                 -->
  <!--                                                             -->
  <!-- Consult the javadoc of o.e.j.server.HttpConfiguration       -->
  <!-- for all configuration that may be set here.                 -->
  <!-- =========================================================== -->
  <New id="httpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
    <Set name="secureScheme">https</Set>
    <Set name="securePort"><Property name="solr.jetty.secure.port" default="8443" /></Set>
    <Set name="outputBufferSize"><Property name="solr.jetty.output.buffer.size" default="32768" /></Set>
    <Set name="outputAggregationSize"><Property name="solr.jetty.output.aggregation.size" default="8192" /></Set>
    <Set name="requestHeaderSize"><Property name="solr.jetty.request.header.size" default="8192" /></Set>
    <Set name="responseHeaderSize"><Property name="solr.jetty.response.header.size" default="8192" /></Set>
    <Set name="sendServerVersion"><Property name="solr.jetty.send.server.version" default="false" /></Set>
    <Set name="sendDateHeader"><Property name="solr.jetty.send.date.header" default="false" /></Set>
    <Set name="headerCacheSize"><Property name="solr.jetty.header.cache.size" default="512" /></Set>
    <Set name="delayDispatchUntilContent"><Property name="solr.jetty.delayDispatchUntilContent" default="false"/></Set>
    <!-- Uncomment to enable handling of X-Forwarded- style headers
    <Call name="addCustomizer">
      <Arg><New class="org.eclipse.jetty.server.ForwardedRequestCustomizer"/></Arg>
    </Call>
    -->
  </New>

    <!-- =========================================================== -->
    <!-- RewriteHandle to set headers, redirect root to Solr         -->
    <!-- =========================================================== -->
     <New id="RewriteHandler" class="org.eclipse.jetty.rewrite.handler.RewriteHandler">
      <Set name="rewriteRequestURI">true</Set>
      <Set name="rewritePathInfo">false</Set>
      <Set name="originalPathAttribute">requestedPath</Set>

      <!-- security-related headers -->
      <Call name="addRule">
        <Arg>
          <New class="org.eclipse.jetty.rewrite.handler.HeaderPatternRule">
            <Set name="pattern">/solr/*</Set>
            <Set name="name">Content-Security-Policy</Set>
            <Set name="value">default-src 'none'; base-uri 'none'; connect-src 'self'; form-action 'self'; font-src 'self'; frame-ancestors 'none'; img-src 'self'; media-src 'self'; style-src 'self' 'unsafe-inline'; script-src 'self'; worker-src 'self';</Set>
          </New>
        </Arg>
      </Call>
      <Call name="addRule">
        <Arg>
          <New class="org.eclipse.jetty.rewrite.handler.HeaderPatternRule">
            <Set name="pattern">/solr/*</Set>
            <Set name="name">X-Content-Type-Options</Set>
            <Set name="value">nosniff</Set>
          </New>
        </Arg>
      </Call>
      <Call name="addRule">
        <Arg>
          <New class="org.eclipse.jetty.rewrite.handler.HeaderPatternRule">
            <Set name="pattern">/solr/*</Set>
            <Set name="name">X-Frame-Options</Set>
            <Set name="value">SAMEORIGIN</Set>
          </New>
        </Arg>
      </Call>
      <Call name="addRule">
        <Arg>
          <New class="org.eclipse.jetty.rewrite.handler.HeaderPatternRule">
            <Set name="pattern">/solr/*</Set>
            <Set name="name">X-XSS-Protection</Set>
            <Set name="value">1; mode=block</Set>
          </New>
        </Arg>
      </Call>

      <!-- redirect root to solr -->
      <Call name="addRule">
        <Arg>
          <New class="org.eclipse.jetty.rewrite.handler.RedirectRegexRule">
            <Set name="regex">^/$</Set>
            <Set name="location">/solr/</Set>
          </New>
        </Arg>
      </Call>
       <Call name="addRule">
         <Arg>
           <New class="org.eclipse.jetty.rewrite.handler.RewritePatternRule">
             <Set name="pattern">/v2/*</Set>
             <Set name="replacement">/solr/____v2</Set>
           </New>
         </Arg>
       </Call>
       <Call name="addRule">
         <Arg>
           <New class="org.eclipse.jetty.rewrite.handler.RewritePatternRule">
             <Set name="pattern">/api/*</Set>
             <Set name="replacement">/solr/____v2</Set>
           </New>
         </Arg>
       </Call>
       <Set name="handler">
         <New id="Handlers" class="org.eclipse.jetty.server.handler.HandlerCollection">
           <Set name="handlers">
             <Array type="org.eclipse.jetty.server.Handler">
               <Item>
                 <New class="org.eclipse.jetty.server.handler.InetAccessHandler">
                   <Call name="include">
                     <Arg>
                       <Call class="org.eclipse.jetty.util.StringUtil" name="csvSplit">
                         <Arg><Property name="solr.jetty.inetaccess.includes" default=""/></Arg>
                       </Call>
                     </Arg>
                   </Call>
                   <Call name="exclude">
                     <Arg>
                       <Call class="org.eclipse.jetty.util.StringUtil" name="csvSplit">
                         <Arg><Property name="solr.jetty.inetaccess.excludes" default=""/></Arg>
                       </Call>
                     </Arg>
                   </Call>
                   <Set name="handler">
                     <New id="Contexts" class="org.eclipse.jetty.server.handler.ContextHandlerCollection"/>
                   </Set>
                 </New>
               </Item>
               <Item>
                 <New id="InstrumentedHandler" class="com.codahale.metrics.jetty9.InstrumentedHandler">
                   <Arg><Ref refid="solrJettyMetricRegistry"/></Arg>
                   <Set name="handler">
                     <New id="DefaultHandler" class="org.eclipse.jetty.server.handler.DefaultHandler"/>
                   </Set>
                 </New>
               </Item>
             </Array>
           </Set>
         </New>
       </Set>
     </New>

    <!-- =========================================================== -->
    <!-- Set handler Collection Structure                            -->
    <!-- =========================================================== -->
    <Set name="handler">
      <Ref id="RewriteHandler"/>
    </Set>

    <!-- =========================================================== -->
    <!-- extra options                                               -->
    <!-- =========================================================== -->
    <Set name="stopAtShutdown">true</Set>
    <Set name="dumpAfterStart">false</Set>
    <Set name="dumpBeforeStop">false</Set>

    <Call name="addBean">
      <Arg>
        <New id="DeploymentManager" class="org.eclipse.jetty.deploy.DeploymentManager">
          <Set name="contexts">
            <Ref refid="Contexts" />
          </Set>
          <Call name="setContextAttribute">
            <Arg>org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern</Arg>
            <Arg>.*/servlet-api-[^/]*\.jar$</Arg>
          </Call>

          <Call name="addAppProvider">
            <Arg>
              <New class="org.eclipse.jetty.deploy.providers.WebAppProvider">
                <Set name="monitoredDirName"><Property name="jetty.base" default="."/>/contexts</Set>
                <Set name="scanInterval">0</Set>
              </New>
            </Arg>
          </Call>

          <!-- Add a customize step to the deployment lifecycle -->
          <!-- uncomment and replace DebugBinding with your extended AppLifeCycle.Binding class
          <Call name="insertLifeCycleNode">
            <Arg>deployed</Arg>
            <Arg>starting</Arg>
            <Arg>customise</Arg>
          </Call>
          <Call name="addLifeCycleBinding">
            <Arg>
              <New class="org.eclipse.jetty.deploy.bindings.DebugBinding">
                <Arg>customise</Arg>
              </New>
            </Arg>
          </Call>
          -->

        </New>
      </Arg>
    </Call>

</Configure>

2. Edit webdefault.xml

The next step is to edit the file webdefault.xml located in the same directory as jetty.xml.  This must be added before the web app tag ends

<security-constraint>
    <web-resource-collection>
      <web-resource-name>Solr authenticated application</web-resource-name>
      <url-pattern>/</url-pattern>
    </web-resource-collection>
    <auth-constraint>
      <role-name>core1-role</role-name>
    </auth-constraint>
</security-constraint>

<login-config>
   <auth-method>BASIC</auth-method>
   <realm-name>Solr Realm</realm-name>
</login-config>

Take note, that the value used in the role-name tag needs to be the same used in the “realm.properties” file.

The complete web default.xml file

<?xml version="1.0" encoding="ISO-8859-1"?>

  <!-- ===================================================================== -->
  <!-- This file contains the default descriptor for web applications.       -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
  <!-- The intent of this descriptor is to include jetty specific or common  -->
  <!-- configuration for all webapps.   If a context has a webdefault.xml    -->
  <!-- descriptor, it is applied before the contexts own web.xml file        -->
  <!--                                                                       -->
  <!-- A context may be assigned a default descriptor by:                    -->
  <!--  + Calling WebApplicationContext.setDefaultsDescriptor                -->
  <!--  + Passed an arg to addWebApplications                                -->
  <!--                                                                       -->
  <!-- This file is used both as the resource within the jetty.jar (which is -->
  <!-- used as the default if no explicit defaults descriptor is set) and it -->
  <!-- is copied to the etc directory of the Jetty distro and explicitly     -->
  <!-- by the jetty.xml file.                                                -->
  <!--                                                                       -->
  <!-- ===================================================================== -->
<web-app
  xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
  metadata-complete="true"
  version="2.5"
>

  <description>
    Default web.xml file.
    This file is applied to a Web application before its own WEB_INF/web.xml file
  </description>

  <!-- ==================================================================== -->
  <!-- Removes static references to beans from javax.el.BeanELResolver to   -->
  <!-- ensure webapp classloader can be released on undeploy                -->
  <!-- ==================================================================== -->
  <listener>
   <listener-class>org.eclipse.jetty.servlet.listener.ELContextCleaner</listener-class>
  </listener>

  <!-- ==================================================================== -->
  <!-- Removes static cache of Methods from java.beans.Introspector to      -->
  <!-- ensure webapp classloader can be released on undeploy                -->
  <!-- ==================================================================== -->
  <listener>
   <listener-class>org.eclipse.jetty.servlet.listener.IntrospectorCleaner</listener-class>
  </listener>


  <!-- ==================================================================== -->
  <!-- Context params to control Session Cookies                            -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <!--
    UNCOMMENT TO ACTIVATE <context-param> <param-name>org.eclipse.jetty.servlet.SessionDomain</param-name> <param-value>127.0.0.1</param-value> </context-param> <context-param>
    <param-name>org.eclipse.jetty.servlet.SessionPath</param-name> <param-value>/</param-value> </context-param> <context-param> <param-name>org.eclipse.jetty.servlet.MaxAge</param-name>
    <param-value>-1</param-value> </context-param>
  -->

  <!-- ==================================================================== -->
  <!-- The default servlet.                                                 -->
  <!-- This servlet, normally mapped to /, provides the handling for static -->
  <!-- content, OPTIONS and TRACE methods for the context.                  -->
  <!-- The following initParameters are supported:                          -->
  <!--
 *  acceptRanges      If true, range requests and responses are
 *                    supported
 *
 *  dirAllowed        If true, directory listings are returned if no
 *                    welcome file is found. Else 403 Forbidden.
 *
 *  welcomeServlets   If true, attempt to dispatch to welcome files
 *                    that are servlets, but only after no matching static
 *                    resources could be found. If false, then a welcome
 *                    file must exist on disk. If "exact", then exact
 *                    servlet matches are supported without an existing file.
 *                    Default is true.
 *
 *                    This must be false if you want directory listings,
 *                    but have index.jsp in your welcome file list.
 *
 *  redirectWelcome   If true, welcome files are redirected rather than
 *                    forwarded to.
 *
 *  gzip              If set to true, then static content will be served as
 *                    gzip content encoded if a matching resource is
 *                    found ending with ".gz"
 *
 *  resourceBase      Set to replace the context resource base
 *
 *  resourceCache     If set, this is a context attribute name, which the servlet
 *                    will use to look for a shared ResourceCache instance.
 *
 *  relativeResourceBase
 *                    Set with a pathname relative to the base of the
 *                    servlet context root. Useful for only serving static content out
 *                    of only specific subdirectories.
 *
 *  aliases           If True, aliases of resources are allowed (eg. symbolic
 *                    links and caps variations). May bypass security constraints.
 *
 *  maxCacheSize      The maximum total size of the cache or 0 for no cache.
 *  maxCachedFileSize The maximum size of a file to cache
 *  maxCachedFiles    The maximum number of files to cache
 *
 *  useFileMappedBuffer
 *                    If set to true, it will use mapped file buffer to serve static content
 *                    when using NIO connector. Setting this value to false means that
 *                    a direct buffer will be used instead of a mapped file buffer.
 *                    By default, this is set to true.
 *
 *  cacheControl      If set, all static content will have this value set as the cache-control
 *                    header.
 -->


  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <servlet>
    <servlet-name>default</servlet-name>
    <servlet-class>org.eclipse.jetty.servlet.DefaultServlet</servlet-class>
    <init-param>
      <param-name>aliases</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>acceptRanges</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
      <param-name>dirAllowed</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>welcomeServlets</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>redirectWelcome</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>maxCacheSize</param-name>
      <param-value>256000000</param-value>
    </init-param>
    <init-param>
      <param-name>maxCachedFileSize</param-name>
      <param-value>200000000</param-value>
    </init-param>
    <init-param>
      <param-name>maxCachedFiles</param-name>
      <param-value>2048</param-value>
    </init-param>
    <init-param>
      <param-name>gzip</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
      <param-name>useFileMappedBuffer</param-name>
      <param-value>true</param-value>
    </init-param>
    <!--
    <init-param>
      <param-name>resourceCache</param-name>
      <param-value>resourceCache</param-value>
    </init-param>
    -->
    <!--
    <init-param>
      <param-name>cacheControl</param-name>
      <param-value>max-age=3600,public</param-value>
    </init-param>
    -->
    <load-on-startup>0</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>


  <!-- ==================================================================== -->
  <!-- JSP Servlet                                                          -->
  <!-- This is the jasper JSP servlet from the jakarta project              -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <!-- The JSP page compiler and execution servlet, which is the mechanism  -->
  <!-- used by Glassfish to support JSP pages.  Traditionally, this servlet -->
  <!-- is mapped to URL patterh "*.jsp".  This servlet supports the         -->
  <!-- following initialization parameters (default values are in square    -->
  <!-- brackets):                                                           -->
  <!--                                                                      -->
  <!--   checkInterval       If development is false and reloading is true, -->
  <!--                       background compiles are enabled. checkInterval -->
  <!--                       is the time in seconds between checks to see   -->
  <!--                       if a JSP page needs to be recompiled. [300]    -->
  <!--                                                                      -->
  <!--   compiler            Which compiler Ant should use to compile JSP   -->
  <!--                       pages.  See the Ant documenation for more      -->
  <!--                       information. [javac]                           -->
  <!--                                                                      -->
  <!--   classdebuginfo      Should the class file be compiled with         -->
  <!--                       debugging information?  [true]                 -->
  <!--                                                                      -->
  <!--   classpath           What class path should I use while compiling   -->
  <!--                       generated servlets?  [Created dynamically      -->
  <!--                       based on the current web application]          -->
  <!--                       Set to ? to make the container explicitly set  -->
  <!--                       this parameter.                                -->
  <!--                                                                      -->
  <!--   development         Is Jasper used in development mode (will check -->
  <!--                       for JSP modification on every access)?  [true] -->
  <!--                                                                      -->
  <!--   enablePooling       Determines whether tag handler pooling is      -->
  <!--                       enabled  [true]                                -->
  <!--                                                                      -->
  <!--   fork                Tell Ant to fork compiles of JSP pages so that -->
  <!--                       a separate JVM is used for JSP page compiles   -->
  <!--                       from the one Tomcat is running in. [true]      -->
  <!--                                                                      -->
  <!--   ieClassId           The class-id value to be sent to Internet      -->
  <!--                       Explorer when using <jsp:plugin> tags.         -->
  <!--                       [clsid:8AD9C840-044E-11D1-B3E9-00805F499D93]   -->
  <!--                                                                      -->
  <!--   javaEncoding        Java file encoding to use for generating java  -->
  <!--                       source files. [UTF-8]                          -->
  <!--                                                                      -->
  <!--   keepgenerated       Should we keep the generated Java source code  -->
  <!--                       for each page instead of deleting it? [true]   -->
  <!--                                                                      -->
  <!--   logVerbosityLevel   The level of detailed messages to be produced  -->
  <!--                       by this servlet.  Increasing levels cause the  -->
  <!--                       generation of more messages.  Valid values are -->
  <!--                       FATAL, ERROR, WARNING, INFORMATION, and DEBUG. -->
  <!--                       [WARNING]                                      -->
  <!--                                                                      -->
  <!--   mappedfile          Should we generate static content with one     -->
  <!--                       print statement per input line, to ease        -->
  <!--                       debugging?  [false]                            -->
  <!--                                                                      -->
  <!--                                                                      -->
  <!--   reloading           Should Jasper check for modified JSPs?  [true] -->
  <!--                                                                      -->
  <!--   suppressSmap        Should the generation of SMAP info for JSR45   -->
  <!--                       debugging be suppressed?  [false]              -->
  <!--                                                                      -->
  <!--   dumpSmap            Should the SMAP info for JSR45 debugging be    -->
  <!--                       dumped to a file? [false]                      -->
  <!--                       False if suppressSmap is true                  -->
  <!--                                                                      -->
  <!--   scratchdir          What scratch directory should we use when      -->
  <!--                       compiling JSP pages?  [default work directory  -->
  <!--                       for the current web application]               -->
  <!--                                                                      -->
  <!--   tagpoolMaxSize      The maximum tag handler pool size  [5]         -->
  <!--                                                                      -->
  <!--   xpoweredBy          Determines whether X-Powered-By response       -->
  <!--                       header is added by generated servlet  [false]  -->
  <!--                                                                      -->
  <!-- If you wish to use Jikes to compile JSP pages:                       -->
  <!--   Set the init parameter "compiler" to "jikes".  Define              -->
  <!--   the property "-Dbuild.compiler.emacs=true" when starting Jetty     -->
  <!--   to cause Jikes to emit error messages in a format compatible with  -->
  <!--   Jasper.                                                            -->
  <!--   If you get an error reporting that jikes can't use UTF-8 encoding, -->
  <!--   try setting the init parameter "javaEncoding" to "ISO-8859-1".     -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <servlet
    id="jsp"
  >
    <servlet-name>jsp</servlet-name>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
      <param-name>logVerbosityLevel</param-name>
      <param-value>DEBUG</param-value>
    </init-param>
    <init-param>
      <param-name>fork</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>xpoweredBy</param-name>
      <param-value>false</param-value>
    </init-param>
    <!--
    <init-param>
        <param-name>classpath</param-name>
        <param-value>?</param-value>
    </init-param>
    -->
    <load-on-startup>0</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>jsp</servlet-name>
    <url-pattern>*.jsp</url-pattern>
    <url-pattern>*.jspf</url-pattern>
    <url-pattern>*.jspx</url-pattern>
    <url-pattern>*.xsp</url-pattern>
    <url-pattern>*.JSP</url-pattern>
    <url-pattern>*.JSPF</url-pattern>
    <url-pattern>*.JSPX</url-pattern>
    <url-pattern>*.XSP</url-pattern>
  </servlet-mapping>

  <!-- ==================================================================== -->
  <!-- Dynamic Servlet Invoker.                                             -->
  <!-- This servlet invokes anonymous servlets that have not been defined   -->
  <!-- in the web.xml or by other means. The first element of the pathInfo  -->
  <!-- of a request passed to the envoker is treated as a servlet name for  -->
  <!-- an existing servlet, or as a class name of a new servlet.            -->
  <!-- This servlet is normally mapped to /servlet/*                        -->
  <!-- This servlet support the following initParams:                       -->
  <!--                                                                      -->
  <!--  nonContextServlets       If false, the invoker can only load        -->
  <!--                           servlets from the contexts classloader.    -->
  <!--                           This is false by default and setting this  -->
  <!--                           to true may have security implications.    -->
  <!--                                                                      -->
  <!--  verbose                  If true, log dynamic loads                 -->
  <!--                                                                      -->
  <!--  *                        All other parameters are copied to the     -->
  <!--                           each dynamic servlet as init parameters    -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <!--
    Uncomment for dynamic invocation <servlet> <servlet-name>invoker</servlet-name> <servlet-class>org.eclipse.jetty.servlet.Invoker</servlet-class> <init-param> <param-name>verbose</param-name>
    <param-value>false</param-value> </init-param> <init-param> <param-name>nonContextServlets</param-name> <param-value>false</param-value> </init-param> <init-param>
    <param-name>dynamicParam</param-name> <param-value>anyValue</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>invoker</servlet-name>
    <url-pattern>/servlet/*</url-pattern> </servlet-mapping>
  -->



  <!-- ==================================================================== -->
  <session-config>
    <session-timeout>30</session-timeout>
  </session-config>

  <!-- ==================================================================== -->
  <!-- Default MIME mappings                                                -->
  <!-- The default MIME mappings are provided by the mime.properties        -->
  <!-- resource in the org.eclipse.jetty.server.jar file.  Additional or modified  -->
  <!-- mappings may be specified here                                       -->
  <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  -->
  <!-- UNCOMMENT TO ACTIVATE
  <mime-mapping>
    <extension>mysuffix</extension>
    <mime-type>mymime/type</mime-type>
  </mime-mapping>
  -->

  <!-- ==================================================================== -->
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <!-- ==================================================================== -->
  <locale-encoding-mapping-list>
    <locale-encoding-mapping>
      <locale>ar</locale>
      <encoding>ISO-8859-6</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>be</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>bg</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>ca</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>cs</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>da</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>de</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>el</locale>
      <encoding>ISO-8859-7</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>en</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>es</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>et</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>fi</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>fr</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>hr</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>hu</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>is</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>it</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>iw</locale>
      <encoding>ISO-8859-8</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>ja</locale>
      <encoding>Shift_JIS</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>ko</locale>
      <encoding>EUC-KR</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>lt</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>lv</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>mk</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>nl</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>no</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>pl</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>pt</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>ro</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>ru</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sh</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sk</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sl</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sq</locale>
      <encoding>ISO-8859-2</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sr</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>sv</locale>
      <encoding>ISO-8859-1</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>tr</locale>
      <encoding>ISO-8859-9</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>uk</locale>
      <encoding>ISO-8859-5</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>zh</locale>
      <encoding>GB2312</encoding>
    </locale-encoding-mapping>
    <locale-encoding-mapping>
      <locale>zh_TW</locale>
      <encoding>Big5</encoding>
    </locale-encoding-mapping>
  </locale-encoding-mapping-list>

  <security-constraint>
    <web-resource-collection>
      <web-resource-name>Disable TRACE</web-resource-name>
      <url-pattern>/</url-pattern>
      <http-method>TRACE</http-method>
    </web-resource-collection>
    <auth-constraint/>
  </security-constraint>

</web-app>

3. Create a realm.properties file

Create a file named realm.properties in the same location as jetty.xml and webdefaults.xml and add the below content

admin: {passwd},{role}

User Name: admin

Password: {passwd}

Role name: {role}

Change the {passwd} and {role} values.  As noted earlier, this needs to be the same as the name used in the role-name tag in the webdefault.xml file.

An example of this file

administrator: baleup,solrise

4. Final Step

Restart Solr

service solr stop

service solr start

Now access Solr in your browser using the hostname or IP address - https://ip_address:8983/solr/

You will find the browser is asking for a username and password. Enter the details you created above.