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From "Mark Muffett" <ma...@muffett.net>
Subject Re: getRemoteHost()
Date Wed, 31 Oct 2001 18:09:17 GMT
I have the same problem and I can't solve it either.

Mark

----- Original Message -----
From: "Miao, Franco CAWS:EX" <Franco.Miao@gems7.gov.bc.ca>
To: <tomcat-user@jakarta.apache.org>
Sent: Wednesday, October 31, 2001 5:15 PM
Subject: getRemoteHost()


> Modified my code many times with getRemoteHost(), still only remote host's
> IP, no host name.  DNS lookups are enabled by default, setting is "
> enableLookups="true" ".
>
> Any advise?  thanks!
>
> Franco
>
>
> Here is my server.xml file, created by installation.
> ________________________________________________________________
> <!-- Example Server Configuration File -->
> <!-- Note that component elements are nested corresponding to their
>      parent-child relationships with each other -->
>
> <!-- A "Server" is a singleton element that represents the entire JVM,
>      which may contain one or more "Service" instances.  The Server
>      listens for a shutdown command on the indicated port.
>
>      Note:  A "Server" is not itself a "Container", so you may not
>      define subcomponents such as "Valves" or "Loggers" at this level.
>  -->
>
> <Server port="8005" shutdown="SHUTDOWN" debug="0">
>
>
>   <!-- A "Service" is a collection of one or more "Connectors" that share
>        a single "Container" (and therefore the web applications visible
>        within that Container).  Normally, that Container is an "Engine",
>        but this is not required.
>
>        Note:  A "Service" is not itself a "Container", so you may not
>        define subcomponents such as "Valves" or "Loggers" at this level.
>    -->
>
>   <!-- Define the Tomcat Stand-Alone Service -->
>   <Service name="Tomcat-Standalone">
>
>     <!-- A "Connector" represents an endpoint by which requests are
received
>          and responses are returned.  Each Connector passes requests on to
> the
>          associated "Container" (normally an Engine) for processing.
>
>          By default, a non-SSL HTTP/1.1 Connector is established on port
> 8080.
>          You can also enable an SSL HTTP/1.1 Connector on port 8443 by
>          following the instructions below and uncommenting the second
> Connector
>          entry.  SSL support requires the following steps (see the SSL
> Config
>          HOWTO in the Tomcat 4.0 documentation bundle for more detailed
>          instructions):
>          * Download and install JSSE 1.0.2 or later, and put the JAR files
>            into "$JAVA_HOME/jre/lib/ext".
>          * Execute:
>              %JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA
> (Windows)
>              $JAVA_HOME/bin/keytool -genkey -alias tomcat -keyalg RSA
> (Unix)
>            with a password value of "changeit" for both the certificate
and
>            the keystore itself.
>
>          By default, DNS lookups are enabled when a web application calls
>          request.getRemoteHost().  This can have an adverse impact on
>          performance, so you can disable it by setting the
>          "enableLookups" attribute to "false".  When DNS lookups are
> disabled,
>          request.getRemoteHost() will return the String version of the
>          IP address of the remote client.
>     -->
>
>     <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
>     <Connector
className="org.apache.catalina.connector.http.HttpConnector"
>                port="8080" minProcessors="5" maxProcessors="75"
>                enableLookups="true" redirectPort="8443"
>                acceptCount="10" debug="0" connectionTimeout="60000"/>
>     <!-- Note : To disable connection timeouts, set connectionTimeout
value
>      to -1 -->
>
>     <!-- Define an SSL HTTP/1.1 Connector on port 8443 -->
>     <!--
>     <Connector
className="org.apache.catalina.connector.http.HttpConnector"
>                port="8443" minProcessors="5" maxProcessors="75"
>                enableLookups="true"
>        acceptCount="10" debug="0" scheme="https" secure="true">
>       <Factory className="org.apache.catalina.net.SSLServerSocketFactory"
>                clientAuth="false" protocol="TLS"/>
>     </Connector>
>     -->
>
>     <!-- Define an AJP 1.3 Connector on port 8009 -->
>     <!--
>     <Connector className="org.apache.ajp.tomcat4.Ajp13Connector"
>                port="8009" minProcessors="5" maxProcessors="75"
>                acceptCount="10" debug="0"/>
>     -->
>
>     <!-- Define a Proxied HTTP/1.1 Connector on port 8081 -->
>     <!-- See proxy documentation for more information about using
this. -->
>     <!--
>     <Connector
className="org.apache.catalina.connector.http.HttpConnector"
>                port="8081" minProcessors="5" maxProcessors="75"
>                enableLookups="true"
>                acceptCount="10" debug="0" connectionTimeout="60000"
>                proxyPort="80"/>
>     -->
>
>     <!-- Define a non-SSL HTTP/1.0 Test Connector on port 8082 -->
>     <!--
>     <Connector
> className="org.apache.catalina.connector.http10.HttpConnector"
>                port="8082" minProcessors="5" maxProcessors="75"
>                enableLookups="true" redirectPort="8443"
>                acceptCount="10" debug="0"/>
>     -->
>
>     <!-- An Engine represents the entry point (within Catalina) that
> processes
>          every request.  The Engine implementation for Tomcat stand alone
>          analyzes the HTTP headers included with the request, and passes
> them
>          on to the appropriate Host (virtual host). -->
>
>     <!-- Define the top level container in our container hierarchy -->
>     <Engine name="Standalone" defaultHost="localhost" debug="0">
>
>       <!-- The request dumper valve dumps useful debugging information
about
>            the request headers and cookies that were received, and the
> response
>            headers and cookies that were sent, for all requests received
by
>            this instance of Tomcat.  If you care only about requests to a
>            particular virtual host, or a particular application, nest this
>            element inside the corresponding <Host> or <Context> entry
> instead.
>
>            For a similar mechanism that is portable to all Servlet 2.3
>            containers, check out the "RequestDumperFilter" Filter in the
>            example application (the source for this filter may be found in
>            "$CATALINA_HOME/webapps/examples/WEB-INF/classes/filters").
>
>            Request dumping is disabled by default.  Uncomment the
following
>            element to enable it. -->
>       <!--
>       <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
>       -->
>
>       <!-- Global logger unless overridden at lower levels -->
>       <Logger className="org.apache.catalina.logger.FileLogger"
>               prefix="catalina_log." suffix=".txt"
>               timestamp="true"/>
>
>       <!-- Because this Realm is here, an instance will be shared globally
> -->
>
>       <Realm className="org.apache.catalina.realm.MemoryRealm" />
>
>       <!-- Replace the above Realm with one of the following to get a
Realm
>            stored in a database and accessed via JDBC -->
>
>       <!--
>       <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
>              driverName="org.gjt.mm.mysql.Driver"
>
> connectionURL="jdbc:mysql://localhost/authority?user=test;password=test"
>               userTable="users" userNameCol="user_name"
> userCredCol="user_pass"
>           userRoleTable="user_roles" roleNameCol="role_name" />
>       -->
>
>       <!--
>       <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
>              driverName="oracle.jdbc.driver.OracleDriver"
>
>
connectionURL="jdbc:oracle:thin:@ntserver:1521:ORCL?user=scott;password=tige
> r"
>               userTable="users" userNameCol="user_name"
> userCredCol="user_pass"
>           userRoleTable="user_roles" roleNameCol="role_name" />
>       -->
>
>       <!--
>       <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
>              driverName="sun.jdbc.odbc.JdbcOdbcDriver"
>           connectionURL="jdbc:odbc:CATALINA"
>               userTable="users" userNameCol="user_name"
> userCredCol="user_pass"
>           userRoleTable="user_roles" roleNameCol="role_name" />
>       -->
>
>       <!-- Define the default virtual host -->
>       <Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true">
>
>         <!-- Normally, users must authenticate themselves to each web app
>              individually.  Uncomment the following entry if you would
like
>              a user to be authenticated the first time they encounter a
>              resource protected by a security constraint, and then have
that
>              user identity maintained across *all* web applications
> contained
>              in this virtual host. -->
>         <!--
>         <Valve className="org.apache.catalina.authenticator.SingleSignOn"
>                    debug="0"/>
>         -->
>
>         <!-- Access log processes all requests for this virtual host.  By
>              default, log files are created in the "logs" directory
relative
> to
>              $CATALINA_HOME.  If you wish, you can specify a different
>              directory with the "directory" attribute.  Specify either a
> relative
>              (to $CATALINA_HOME) or absolute path to the desired
directory.
>         -->
>         <Valve className="org.apache.catalina.valves.AccessLogValve"
>                  directory="logs"  prefix="localhost_access_log."
> suffix=".txt"
>                  pattern="common"/>
>
>         <!-- Logger shared by all Contexts related to this virtual host.
By
>              default (when using FileLogger), log files are created in the
> "logs"
>              directory relative to $CATALINA_HOME.  If you wish, you can
> specify
>              a different directory with the "directory" attribute.
Specify
> either a
>              relative (to $CATALINA_HOME) or absolute path to the desired
>              directory.-->
>         <Logger className="org.apache.catalina.logger.FileLogger"
>                  directory="logs"  prefix="localhost_log." suffix=".txt"
>         timestamp="true"/>
>
>         <!-- Define properties for each web application.  This is only
> needed
>              if you want to set non-default properties, or have web
> application
>              document roots in places other than the virtual host's
appBase
>              directory.  -->
>
>         <!-- Tomcat Root Context -->
>         <!--
>           <Context path="" docBase="ROOT" debug="0"/>
>         -->
>
>         <!-- Tomcat Manager Context -->
>         <Context path="/manager" docBase="manager"
>          debug="0" privileged="true"/>
>
>         <!-- Tomcat Examples Context -->
>         <Context path="/examples" docBase="examples" debug="0"
>                  reloadable="true">
>           <Logger className="org.apache.catalina.logger.FileLogger"
>                      prefix="localhost_examples_log." suffix=".txt"
>           timestamp="true"/>
>           <Ejb   name="ejb/EmplRecord" type="Entity"
>                  home="com.wombat.empl.EmployeeRecordHome"
>                remote="com.wombat.empl.EmployeeRecord"/>
>           <!-- PersistentManager: Uncomment the section below to test
> Persistent
>        Sessions.
>
>                saveOnRestart: If true, all active sessions will be saved
>                  to the Store when Catalina is shutdown, regardless of
>                  other settings. All Sessions found in the Store will be
>                  loaded on startup. Sessions past their expiration are
>                  ignored in both cases.
>                maxActiveSessions: If 0 or greater, having too many active
>                  sessions will result in some being swapped out.
minIdleSwap
>                  limits this. -1 means unlimited sessions are allowed.
>                  0 means sessions will almost always be swapped out after
>                  use - this will be noticeably slow for your users.
>                minIdleSwap: Sessions must be idle for at least this long
>                  (in seconds) before they will be swapped out due to
>                maxActiveSessions. This avoids thrashing when the site is
>                  highly active. -1 or 0 means there is no minimum -
sessions
>                  can be swapped out at any time.
>                maxIdleSwap: Sessions will be swapped out if idle for this
>                  long (in seconds). If minIdleSwap is higher, then it will
>                  override this. This isn't exact: it is checked
> periodically.
>                  -1 means sessions won't be swapped out for this reason,
>                  although they may be swapped out for maxActiveSessions.
>                  If set to >= 0, guarantees that all sessions found in the
>                  Store will be loaded on startup.
>                maxIdleBackup: Sessions will be backed up (saved to the
> Store,
>                  but left in active memory) if idle for this long (in
> seconds),
>                  and all sessions found in the Store will be loaded on
> startup.
>                  If set to -1 sessions will not be backed up, 0 means they
>                  should be backed up shortly after being used.
>
>                To clear sessions from the Store, set maxActiveSessions,
> maxIdleSwap,
>                and minIdleBackup all to -1, saveOnRestart to false, then
> restart
>                Catalina.
>           -->
>   <!--
>           <Manager
className="org.apache.catalina.session.PersistentManager"
>               debug="0"
>               saveOnRestart="true"
>               maxActiveSessions="-1"
>               minIdleSwap="-1"
>               maxIdleSwap="-1"
>               maxIdleBackup="-1">
>                 <Store className="org.apache.catalina.session.FileStore"/>
>           </Manager>
>   -->
>           <Environment name="maxExemptions" type="java.lang.Integer"
>                       value="15"/>
>           <Parameter name="context.param.name" value="context.param.value"
>                      override="false"/>
>           <Resource name="jdbc/EmployeeAppDb" auth="SERVLET"
>                     type="javax.sql.DataSource"/>
>           <ResourceParams name="jdbc/EmployeeAppDb">
>             <parameter><name>user</name><value>sa</value></parameter>
>             <parameter><name>password</name><value></value></parameter>
>             <parameter><name>driverClassName</name>
>               <value>org.hsql.jdbcDriver</value></parameter>
>             <parameter><name>driverName</name>
>               <value>jdbc:HypersonicSQL:database</value></parameter>
>           </ResourceParams>
>           <Resource name="mail/Session" auth="Container"
>                     type="javax.mail.Session"/>
>           <ResourceParams name="mail/Session">
>             <parameter>
>               <name>mail.smtp.host</name>
>               <value>localhost</value>
>             </parameter>
>           </ResourceParams>
>         </Context>
>
>       </Host>
>
>     </Engine>
>
>   </Service>
>
>   <!-- The MOD_WEBAPP connector is used to connect Apache 1.3 with Tomcat
> 4.0
>        as its servlet container. Please read the README.txt file coming
with
>        the WebApp Module distribution on how to build it.
>        (Or check out the "jakarta-tomcat-connectors/webapp" CVS
repository)
>
>        To configure the Apache side, you must ensure that you have the
>        "ServerName" and "Port" directives defined in "httpd.conf".  Then,
>        lines like these to the bottom of your "httpd.conf" file:
>
>          LoadModule webapp_module libexec/mod_webapp.so
>          WebAppConnection warpConnection warp localhost:8008
>          WebAppDeploy examples warpConnection /examples/
>
>        The next time you restart Apache (after restarting Tomcat, if
needed)
>        the connection will be established, and all applications you make
>        visible via "WebAppDeploy" directives can be accessed through
Apache.
>   -->
>
>   <!-- Define an Apache-Connector Service -->
>   <Service name="Tomcat-Apache">
>
>     <Connector
className="org.apache.catalina.connector.warp.WarpConnector"
>      port="8008" minProcessors="5" maxProcessors="75"
>      enableLookups="true"
>      acceptCount="10" debug="0"/>
>
>     <!-- Replace "localhost" with what your Apache "ServerName" is set to
> -->
>     <Engine className="org.apache.catalina.connector.warp.WarpEngine"
>      name="Apache" debug="0" appBase="webapps">
>
>       <!-- Global logger unless overridden at lower levels -->
>       <Logger className="org.apache.catalina.logger.FileLogger"
>               prefix="apache_log." suffix=".txt"
>               timestamp="true"/>
>
>       <!-- Because this Realm is here, an instance will be shared globally
> -->
>       <Realm className="org.apache.catalina.realm.MemoryRealm" />
>
>     </Engine>
>
>   </Service>
>
> </Server>
>
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