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374 lines
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</style></head><body bgcolor="#ffffff" text="#000000" link="#525D76" alink="#525D76" vlink="#525D76"><table border="0" width="100%" cellspacing="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="https://tomcat.apache.org/"><img src="./images/tomcat.gif" align="right" alt="
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The Apache Tomcat Servlet/JSP Container
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" border="0"></a></td><td><h1><font face="arial,helvetica,sanserif">Apache Tomcat 7</font></h1><font face="arial,helvetica,sanserif">Version 7.0.108, Jan 28 2021</font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img src="./images/asf-logo.svg" align="right" alt="Apache Logo" border="0" style="width: 266px;height: 83px;"></a></td></tr></table><table border="0" width="100%" cellspacing="4"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr noshade size="1"></td></tr><tr><!--LEFT SIDE NAVIGATION--><td width="20%" valign="top" nowrap class="noPrint"><p><strong>Links</strong></p><ul><li><a href="index.html">Docs Home</a></li><li><a href="https://wiki.apache.org/tomcat/FAQ">FAQ</a></li><li><a href="#comments_section">User Comments</a></li></ul><p><strong>User Guide</strong></p><ul><li><a href="introduction.html">1) Introduction</a></li><li><a href="setup.html">2) Setup</a></li><li><a href="appdev/index.html">3) First webapp</a></li><li><a href="deployer-howto.html">4) Deployer</a></li><li><a href="manager-howto.html">5) Manager</a></li><li><a href="host-manager-howto.html">6) Host Manager</a></li><li><a href="realm-howto.html">7) Realms and AAA</a></li><li><a href="security-manager-howto.html">8) Security Manager</a></li><li><a href="jndi-resources-howto.html">9) JNDI Resources</a></li><li><a href="jndi-datasource-examples-howto.html">10) JDBC DataSources</a></li><li><a href="class-loader-howto.html">11) Classloading</a></li><li><a href="jasper-howto.html">12) JSPs</a></li><li><a href="ssl-howto.html">13) SSL/TLS</a></li><li><a href="ssi-howto.html">14) SSI</a></li><li><a href="cgi-howto.html">15) CGI</a></li><li><a href="proxy-howto.html">16) Proxy Support</a></li><li><a href="mbeans-descriptors-howto.html">17) MBeans Descriptors</a></li><li><a href="default-servlet.html">18) Default Servlet</a></li><li><a href="cluster-howto.html">19) Clustering</a></li><li><a href="balancer-howto.html">20) Load Balancer</a></li><li><a href="connectors.html">21) Connectors</a></li><li><a href="monitoring.html">22) Monitoring and Management</a></li><li><a href="logging.html">23) Logging</a></li><li><a href="apr.html">24) APR/Native</a></li><li><a href="virtual-hosting-howto.html">25) Virtual Hosting</a></li><li><a href="aio.html">26) Advanced IO</a></li><li><a href="extras.html">27) Additional Components</a></li><li><a href="maven-jars.html">28) Mavenized</a></li><li><a href="security-howto.html">29) Security Considerations</a></li><li><a href="windows-service-howto.html">30) Windows Service</a></li><li><a href="windows-auth-howto.html">31) Windows Authentication</a></li><li><a href="jdbc-pool.html">32) Tomcat's JDBC Pool</a></li><li><a href="web-socket-howto.html">33) WebSocket</a></li></ul><p><strong>Reference</strong></p><ul><li><a href="RELEASE-NOTES.txt">Release Notes</a></li><li><a href="config/index.html">Configuration</a></li><li><a href="api/index.html">Tomcat Javadocs</a></li><li><a href="servletapi/index.html">Servlet Javadocs</a></li><li><a href="jspapi/index.html">JSP 2.2 Javadocs</a></li><li><a href="elapi/index.html">EL 2.2 Javadocs</a></li><li><a href="websocketapi/index.html">WebSocket 1.1 Javadocs</a></li><li><a href="annotationapi/index.html">Common Annotations 1.1 Javadocs</a></li><li><a href="https://tomcat.apache.org/connectors-doc/">JK 1.2 Documentation</a></li></ul><p><strong>Apache Tomcat Development</strong></p><ul><li><a href="building.html">Building</a></li><li><a href="changelog.html">Changelog</a></li><li><a href="https://wiki.apache.org/tomcat/TomcatVersions">Status</a></li><li><a href="developers.html">Developers</a></li><li><a href="architecture/index.html">Architecture</a></li><li><a href="tribes/introduction.html">Tribes</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td width="80%" valign="top" align="left" id="mainBody"><h1>Windows Authentication How-To</h1><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Table of Contents"><!--()--></a><a name="Table_of_Contents"><strong>Table of Contents</strong></a></font></td></tr><tr><td><blockquote>
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<ul><li><a href="#Overview">Overview</a></li><li><a href="#Built-in_Tomcat_support">Built-in Tomcat support</a><ol><li><a href="#Domain_Controller">Domain Controller</a></li><li><a href="#Tomcat_instance_(Windows_server)">Tomcat instance (Windows server)</a></li><li><a href="#Tomcat_instance_(Linux_server)">Tomcat instance (Linux server)</a></li><li><a href="#Web_application">Web application</a></li><li><a href="#Client">Client</a></li><li><a href="#References">References</a></li></ol></li><li><a href="#Third_party_libraries">Third party libraries</a><ol><li><a href="#Waffle">Waffle</a></li><li><a href="#Spring_Security_-_Kerberos_Extension">Spring Security - Kerberos Extension</a></li><li><a href="#Jespa">Jespa</a></li><li><a href="#SPNEGO_AD_project_at_SourceForge">SPNEGO AD project at SourceForge</a></li></ol></li><li><a href="#Reverse_proxies">Reverse proxies</a><ol><li><a href="#Microsoft_IIS">Microsoft IIS</a></li><li><a href="#Apache_httpd">Apache httpd</a></li></ol></li></ul>
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</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Overview"><strong>Overview</strong></a></font></td></tr><tr><td><blockquote>
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<p>Integrated Windows authentication is most frequently used within intranet
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environments since it requires that the server performing the authentication and
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the user being authenticated are part of the same domain. For the user to be
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authenticated automatically, the client machine used by the user must also be
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part of the domain.</p>
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<p>There are several options for implementing integrated Windows authentication
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with Apache Tomcat. They are:
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<ul>
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<li>Built-in Tomcat support.</li>
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<li>Use a third party library such as Waffle.</li>
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<li>Use a reverse proxy that supports Windows authentication to perform the
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authentication step such as IIS or httpd.</li>
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</ul>
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The configuration of each of these options is discussed in the following
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sections.</p>
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</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Built-in Tomcat support"><!--()--></a><a name="Built-in_Tomcat_support"><strong>Built-in Tomcat support</strong></a></font></td></tr><tr><td><blockquote>
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<p>Kerberos (the basis for integrated Windows authentication) requires careful
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configuration. If the steps in this guide are followed exactly, then a working
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configuration will result. It is important that the steps below are followed
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exactly. There is very little scope for flexibility in the configuration. From
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the testing to date it is known that:</p>
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<ul>
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<li>The host name used to access the Tomcat server must match the host name in
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the SPN exactly else authentication will fail. A checksum error may be reported
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in the debug logs in this case.</li>
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<li>The client must be of the view that the server is part of the local trusted
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intranet.</li>
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<li>The SPN must be HTTP/<hostname> and it must be exactly the same in all
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the places it is used.</li>
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<li>The port number must not be included in the SPN.</li>
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<li>No more than one SPN may be mapped to a domain user.</li>
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<li>Tomcat must run as the domain account with which the SPN has been associated
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or as domain admin. It is <strong>NOT</strong> recommended to run Tomcat under a
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domain admin user.</li>
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<li>The domain name (<code>DEV.LOCAL</code>) is not case sensitive when used in
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the ktpass command, nor when used in jaas.conf</li>
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<li>The domain must be specified when using the ktpass command</li>
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</ul>
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<p>There are four components to the configuration of the built-in Tomcat
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support for Windows authentication. The domain controller, the server hosting
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Tomcat, the web application wishing to use Windows authentication and the client
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machine. The following sections describe the configuration required for each
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component.</p>
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<p>The names of the three machines used in the configuration examples below are
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win-dc01.dev.local (the domain controller), win-tc01.dev.local (the Tomcat
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instance) and win-pc01.dev.local (client). All are members of the DEV.LOCAL
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domain.</p>
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<p>Note: In order to use the passwords in the steps below, the domain password
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policy had to be relaxed. This is not recommended for production environments.
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</p>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Domain Controller"><!--()--></a><a name="Domain_Controller"><strong>Domain Controller</strong></a></font></td></tr><tr><td><blockquote>
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<p>These steps assume that the server has already been configured to act as a
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domain controller. Configuration of a Windows server as a domain controller is
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outside the scope of this how-to. The steps to configure the domain controller
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to enable Tomcat to support Windows authentication are as follows:
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</p>
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<ul>
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<li>Create a domain user that will be mapped to the service name used by the
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Tomcat server. In this how-to, this user is called <code>tc01</code> and has a
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password of <code>tc01pass</code>.</li>
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<li>Map the service principal name (SPN) to the user account. SPNs take the
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form <code>
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<service class>/<host>:<port>/<service name></code>.
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The SPN used in this how-to is <code>HTTP/win-tc01.dev.local</code>. To
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map the user to the SPN, run the following:
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<div class="codeBox"><pre><code>setspn -A HTTP/win-tc01.dev.local tc01</code></pre></div>
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</li>
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<li>Generate the keytab file that the Tomcat server will use to authenticate
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itself to the domain controller. This file contains the Tomcat private key for
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the service provider account and should be protected accordingly. To generate
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the file, run the following command (all on a single line):
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<div class="codeBox"><pre><code>ktpass /out c:\tomcat.keytab /mapuser tc01@DEV.LOCAL
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/princ HTTP/win-tc01.dev.local@DEV.LOCAL
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/pass tc01pass /kvno 0</code></pre></div></li>
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<li>Create a domain user to be used on the client. In this how-to the domain
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user is <code>test</code> with a password of <code>testpass</code>.</li>
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</ul>
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<p>The above steps have been tested on a domain controller running Windows
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Server 2008 R2 64-bit Standard using the Windows Server 2003 functional level
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for both the forest and the domain.
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</p>
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</blockquote></td></tr></table>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Tomcat instance (Windows server)"><!--()--></a><a name="Tomcat_instance_(Windows_server)"><strong>Tomcat instance (Windows server)</strong></a></font></td></tr><tr><td><blockquote>
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<p>These steps assume that Tomcat and a Java 6 JDK/JRE have already been
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installed and configured and that Tomcat is running as the tc01@DEV.LOCAL
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user. The steps to configure the Tomcat instance for Windows authentication
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are as follows:
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</p>
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<ul>
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<li>Copy the <code>tomcat.keytab</code> file created on the domain controller
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to <code>$CATALINA_BASE/conf/tomcat.keytab</code>.</li>
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<li>Create the kerberos configuration file
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<code>$CATALINA_BASE/conf/krb5.ini</code>. The file used in this how-to
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contained:<div class="codeBox"><pre><code>[libdefaults]
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default_realm = DEV.LOCAL
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default_keytab_name = FILE:c:\apache-tomcat-7.0.x\conf\tomcat.keytab
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default_tkt_enctypes = rc4-hmac,aes256-cts-hmac-sha1-96,aes128-cts-hmac-sha1-96
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default_tgs_enctypes = rc4-hmac,aes256-cts-hmac-sha1-96,aes128-cts-hmac-sha1-96
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forwardable=true
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[realms]
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DEV.LOCAL = {
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kdc = win-dc01.dev.local:88
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}
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[domain_realm]
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dev.local= DEV.LOCAL
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.dev.local= DEV.LOCAL</code></pre></div>
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The location of this file can be changed by setting the
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<code>java.security.krb5.conf</code> system property.</li>
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<li>Create the JAAS login configuration file
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<code>$CATALINA_BASE/conf/jaas.conf</code>. The file used in this how-to
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contained:<div class="codeBox"><pre><code>com.sun.security.jgss.krb5.initiate {
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com.sun.security.auth.module.Krb5LoginModule required
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doNotPrompt=true
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principal="HTTP/win-tc01.dev.local@DEV.LOCAL"
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useKeyTab=true
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keyTab="c:/apache-tomcat-7.0.x/conf/tomcat.keytab"
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storeKey=true;
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};
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com.sun.security.jgss.krb5.accept {
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com.sun.security.auth.module.Krb5LoginModule required
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doNotPrompt=true
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principal="HTTP/win-tc01.dev.local@DEV.LOCAL"
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useKeyTab=true
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keyTab="c:/apache-tomcat-7.0.x/conf/tomcat.keytab"
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storeKey=true;
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};</code></pre></div>
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The location of this file can be changed by setting the
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<code>java.security.auth.login.config</code> system property. The LoginModule
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used is a JVM specific one so ensure that the LoginModule specified matches
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the JVM being used. The name of the login configuration must match the
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value used by the <a href="config/valve.html#SPNEGO_Valve">authentication
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valve</a>.</li>
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</ul>
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<p>The SPNEGO authenticator will work with any <a href="config/realm.html">
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Realm</a> but if used with the JNDI Realm, by default the JNDI Realm will use
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the user's delegated credentials to connect to the Active Directory.
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</p>
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<p>The above steps have been tested on a Tomcat server running Windows Server
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2008 R2 64-bit Standard with an Oracle 1.6.0_24 64-bit JDK.</p>
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</blockquote></td></tr></table>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Tomcat instance (Linux server)"><!--()--></a><a name="Tomcat_instance_(Linux_server)"><strong>Tomcat instance (Linux server)</strong></a></font></td></tr><tr><td><blockquote>
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<p>This was tested with:</p>
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<ul>
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<li>Java 1.7.0, update 45, 64-bit</li>
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<li>Ubuntu Server 12.04.3 LTS 64-bit</li>
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<li>Tomcat 8.0.x (r1546570)</li>
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</ul>
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<p>It should work with any Tomcat 7 release from 7.0.12 onwards although it is
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recommended that the latest stable release is used.</p>
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<p>The configuration is the same as for Windows but with the following
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changes:</p>
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<ul>
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<li>The Linux server does not have to be part of the Windows domain.</li>
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<li>The path to the keytab file in krb5.ini and jaas.conf should be updated
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to reflect the path to the keytab file on the Linux server using Linux
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style file paths (e.g. /usr/local/tomcat/...).</li>
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</ul>
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</blockquote></td></tr></table>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Web application"><!--()--></a><a name="Web_application"><strong>Web application</strong></a></font></td></tr><tr><td><blockquote>
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<p>The web application needs to be configured to the use Tomcat specific
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authentication method of <code>SPNEGO</code> (rather than BASIC etc.) in
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web.xml. As with the other authenticators, behaviour can be customised by
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explicitly configuring the <a href="config/valve.html#SPNEGO_Valve">
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authentication valve</a> and setting attributes on the Valve.</p>
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</blockquote></td></tr></table>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Client"><strong>Client</strong></a></font></td></tr><tr><td><blockquote>
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<p>The client must be configured to use Kerberos authentication. For Internet
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Explorer this means making sure that the Tomcat instance is in the "Local
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intranet" security domain and that it is configured (Tools > Internet
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Options > Advanced) with integrated Windows authentication enabled. Note that
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this <strong>will not</strong> work if you use the same machine for the client
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and the Tomcat instance as Internet Explorer will use the unsupported NTLM
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protocol.</p>
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</blockquote></td></tr></table>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="References"><strong>References</strong></a></font></td></tr><tr><td><blockquote>
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<p>Correctly configuring Kerberos authentication can be tricky. The following
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references may prove helpful. Advice is also always available from the
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<a href="https://tomcat.apache.org/lists.html#tomcat-users">Tomcat users
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mailing list</a>.</p>
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<ol>
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<li><a href="http://www.adopenstatic.com/cs/blogs/ken/archive/2006/10/19/512.aspx">
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IIS and Kerberos</a></li>
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<li><a href="http://spnego.sourceforge.net/index.html">
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SPNEGO project at SourceForge</a></li>
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<li><a href="http://docs.oracle.com/javase/1.5.0/docs/guide/security/jgss/tutorials/index.html">
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Oracle JGSS tutorial</a></li>
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<li><a href="https://cwiki.apache.org/confluence/display/GMOxDOC21/Using+SPNEGO+in+Geronimo#UsingSPNEGOinGeronimo-SettinguptheDomainControllerMachine">
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Geronimo configuration for Windows authentication</a></li>
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<li><a href="http://blogs.msdn.com/b/openspecification/archive/2010/11/17/encryption-type-selection-in-kerberos-exchanges.aspx">
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Encryption Selection in Kerberos Exchanges</a></li>
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<li><a href="http://support.microsoft.com/kb/977321">Supported Kerberos Cipher
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Suites</a></li>
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</ol>
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</blockquote></td></tr></table>
|
|
|
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</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Third party libraries"><!--()--></a><a name="Third_party_libraries"><strong>Third party libraries</strong></a></font></td></tr><tr><td><blockquote>
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<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Waffle"><strong>Waffle</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>Full details of this solution can be found through the
|
|
<a href="http://waffle.codeplex.com/" rel="nofollow">Waffle web site</a>. The
|
|
key features are:</p>
|
|
<ul>
|
|
<li>Drop-in solution</li>
|
|
<li>Simple configuration (no JAAS or Kerberos keytab configuration required)
|
|
</li>
|
|
<li>Uses a native library</li>
|
|
</ul>
|
|
</blockquote></td></tr></table>
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Spring Security - Kerberos Extension"><!--()--></a><a name="Spring_Security_-_Kerberos_Extension"><strong>Spring Security - Kerberos Extension</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>Full details of this solution can be found through the
|
|
<a href="http://static.springsource.org/spring-security/site/extensions/krb/index.html" rel="nofollow"> Kerberos extension web site</a>. The key features are:</p>
|
|
<ul>
|
|
<li>Extension to Spring Security</li>
|
|
<li>Requires a Kerberos keytab file to be generated</li>
|
|
<li>Pure Java solution</li>
|
|
</ul>
|
|
</blockquote></td></tr></table>
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Jespa"><strong>Jespa</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>Full details of this solution can be found through the
|
|
<a href="http://www.ioplex.com/" rel="nofollow">project web site.</a> The key
|
|
features are:</p>
|
|
<ul>
|
|
<li>Pure Java solution</li>
|
|
<li>Advanced Active Directory integration</li>
|
|
</ul>
|
|
</blockquote></td></tr></table>
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="SPNEGO AD project at SourceForge"><!--()--></a><a name="SPNEGO_AD_project_at_SourceForge"><strong>SPNEGO AD project at SourceForge</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>Full details of this solution can be found through the
|
|
<a href="http://tomcatspnegoad.sourceforge.net/" rel="nofollow">project
|
|
site</a>. The key features are:</p>
|
|
<ul>
|
|
<li>Pure Java solution</li>
|
|
<li>SPNEGO/Kerberos Authenticator</li>
|
|
<li>Active Directory Realm</li>
|
|
</ul>
|
|
</blockquote></td></tr></table>
|
|
</blockquote></td></tr></table><table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#525D76"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Reverse proxies"><!--()--></a><a name="Reverse_proxies"><strong>Reverse proxies</strong></a></font></td></tr><tr><td><blockquote>
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Microsoft IIS"><!--()--></a><a name="Microsoft_IIS"><strong>Microsoft IIS</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>There are three steps to configuring IIS to provide Windows authentication.
|
|
They are:</p>
|
|
<ol>
|
|
<li>Configure IIS as a reverse proxy for Tomcat (see the
|
|
<a href="https://tomcat.apache.org/connectors-doc/webserver_howto/iis.html">
|
|
IIS Web Server How-To)</a>.</li>
|
|
<li>Configure IIS to use Windows authentication</li>
|
|
<li>Configure Tomcat to use the authentication user information from IIS by
|
|
setting the tomcatAuthentication attribute on the <a href="config/ajp.html">
|
|
AJP connector</a> to <code>false</code>. Alternatively, set the
|
|
tomcatAuthorization attribute to <code>true</code> to allow IIS to
|
|
authenticate, while Tomcat performs the authorization.</li>
|
|
</ol>
|
|
</blockquote></td></tr></table>
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2"><tr><td bgcolor="#828DA6"><font color="#ffffff" face="arial,helvetica.sanserif"><a name="Apache httpd"><!--()--></a><a name="Apache_httpd"><strong>Apache httpd</strong></a></font></td></tr><tr><td><blockquote>
|
|
<p>Apache httpd does not support Windows authentication out of the box but
|
|
there are a number of third-party modules that can be used. These include:</p>
|
|
<ol>
|
|
<li><a href="http://sourceforge.net/projects/mod-auth-sspi/" rel="nofollow">mod_auth_sspi</a> for use on Windows platforms.</li>
|
|
<li><a href="http://adldap.sourceforge.net/wiki/doku.php?id=mod_auth_ntlm_winbind" rel="nofollow">mod_auth_ntlm_winbind</a> for non-Windows platforms. Known to
|
|
work with httpd 2.0.x on 32-bit platforms. Some users have reported stability
|
|
issues with both httpd 2.2.x builds and 64-bit Linux builds.</li>
|
|
</ol>
|
|
<p>There are three steps to configuring httpd to provide Windows
|
|
authentication. They are:</p>
|
|
<ol>
|
|
<li>Configure httpd as a reverse proxy for Tomcat (see the
|
|
<a href="https://tomcat.apache.org/connectors-doc/webserver_howto/apache.html">
|
|
Apache httpd Web Server How-To)</a>.</li>
|
|
<li>Configure httpd to use Windows authentication</li>
|
|
<li>Configure Tomcat to use the authentication user information from httpd by
|
|
setting the tomcatAuthentication attribute on the <a href="config/ajp.html">
|
|
AJP connector</a> to <code>false</code>.</li>
|
|
</ol>
|
|
</blockquote></td></tr></table>
|
|
|
|
</blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr noshade size="1"></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font color="#525D76" size="-1"><em>
|
|
Copyright © 1999-2021, Apache Software Foundation
|
|
</em></font></div></td></tr></table></body></html> |