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Introduction

You can set up access to PhixFlow either through PhixFlow Users, by integrating with your Active Directory infrastructure, or both. If you integrate with Active Directory, Access Control is maintained by mapping Active Directory Groups to PhixFlow User Groups, as described below. By using the Active Directory integration users will login to PhixFlow using the same username and password as their Microsoft Windows domain login.

Configuring PhixFlow with Active Directory has a number of steps

  1. Configure an authentication provider - this defines how to connect to an Active Directory domain
  2. Add the authentication provider to the authentication manager
  3. Define the external login group - this defines the external group needed to login
  4. Map external groups to PhixFlow's User Groups - on login PhixFlow maps the user's external groups to PhixFlow's user groups to determine what the user is allowed to do in the particular PhixFlow instance

Contents

Configure phixflow-login.xml

Connection details to the domain servers are configured in the file phixflow-login.xml, under [tomcat root]/webapps/phixflow/WEB-INF/classes. When you first install PhixFlow, you probably created a copy of this file by simply copying the example file phixflow-login.xml.example (see Install PhixFlow Webapp).

To configure this file for Active Directory login, you must

  • configure an Active Directory authentication provider
  • add it to the authentication manager
  • configure external groups
  • configure one or more login forms to make the option to login using Active Directory visible to users

Configure an Authentication Provider

Find this part of the file:

	<!-- Active Directory AuthProvider-->
	
	<!--
		You must provided one AuthProvider bean for each domain to which you want to connect, 
		each based on one of the examples below, and add it to the authenticationManager above
	-->

	<!-- Example bean providing domain and url to authentication-provider -->
	<!-- 
	<bean id="exampleActiveDirectoryAuthProvider" parent="activeDirectoryAuthProvider">
		<constructor-arg index="0" value="narnia.local" />
		<constructor-arg index="1" value="ldap://192.168.150.81" />
	</bean>
	-->

Then uncomment and edit one of the example activeDirectoryAuthProvider beans to reflect your active directory configuration.

Simple connection

The simplest configuration, for the domain mydomain.com and the domain controller at a specific IP address, is illustrated below:

    <!-- authentication-provider for mydomain.com -->
    <bean id="mydomainAuthProvider" parent="activeDirectoryAuthProvider">
        <constructor-arg index="0" value="mydomain.com" />
        <constructor-arg index="1" value="ldaps://192.168.1.1" />
    </bean>

Advanced options

For the connection you can also specify:

OptionPurposeExample
Domain servers
(Constructor-arg 1)
Some domains are served by multiple servers, to provide resilience and load balancing. These are specified in a space-separated list. PhixFlow will try each of these in turn.
<constructor-arg index="1" value="ldaps://ad1.example.com ldap://ad2.example.com" />

You can also specify connecting to the domain itself. This is equivalent to connecting to the list of domain controllers specified in the DNS entry for the domain.<constructor-arg index="1" value="ldaps://example.com" />

Root DN
(Constructor-arg 2)

If you have a large AD tree, searches may take some time, and this could lead to slow authentication for users. Therefore it is possible to specify a root DN (Distinguished name) at which PhixFlow will begin searching for the user. The Distinguished Name format is standard and further details can be found on the web.
<constructor-arg index="2" value="ou=User Accounts,ou=Operations,dc=emea,dc=example,dc=com" />
Timeout

You can specify a timeout. For each server specified, if the server does not respond within the limit specified by the timeout, it will try the next server. If the last server in the list times out, then the authentication will fail.

The timeout is specified in milliseconds.

<property name="timeout" value="5000"/>

The following example, in phixflow-login.xml.example, illustrates the application of all advanced options:

    <!-- Template of a bean providing domain, multiple servers, connection timeout and separate rootDn -->
	<bean id="exampleActiveDirectoryAuthProvider" parent="activeDirectoryAuthProvider">
        <constructor-arg index="0" value="example.com" />
        <constructor-arg index="1" value="ldap://ad1.example.com ldap://ad2.example.com" />
        <constructor-arg index="2" value="ou=User Accounts,ou=Operations,dc=emea,dc=example,dc=com" />
        <property name="timeout" value="5000"/>
	</bean>

Configure the authentication manager

Now add the authentication provider you have just defined to the authentication manager.

Find this section of the file:

	<security:authentication-manager alias="authenticationManager">
		<!-- test authentication provider, leave commented out -->
		<!-- <security:authentication-provider ref="testAuthProvider" /> -->

		<!-- local authentication provider - provide access for CenterView database users. Don't change it -->
		<security:authentication-provider ref="localAuthProvider" />

		<!-- Add an Active Directory Authentication Provider below this line; uncomment if using active directory integration -->
		<!-- <security:authentication-provider ref="exampleActiveDirectoryAuthProvider" /> -->

		<!-- Add SAML Authentication Provider; uncomment if using saml / single sign-on -->
		<!-- <security:authentication-provider ref="samlAuthProvider"/> -->
	</security:authentication-manager>

... and edit it to include the new AuthProvider.

The authenticationManager should now look something like this (comments omitted):

	<security:authentication-manager alias="authenticationManager">
		<security:authentication-provider ref="localAuthProvider" />
		<security:authentication-provider ref="exampleActiveDirectoryAuthProvider" />
	</security:authentication-manager>

We recommend that you do not remove the localAuthProvider, and that you retain a local administrator user so that you can still login in the event of a problem with the active directory integration.

Configure Login Forms

Login forms define the login options (local, single sign-on, active directory) to be presented on the login screen when a user opens the PhixFlow URL. This mechanism allows you to define a default form tailored to regular users and one or more forms for advanced users.

See Configure the Login Form for how to configure and use login forms.

Configure External Groups

System Configuration defines an external login group, which grants the right to login to that PhixFlow instance. If this group is not configured, or the user is not a member of that external group, she will not be allowed to login, even if she provides a valid username and password for the identity provider.

Each PhixFlow User Group defines external group names which grant access rights (the rights to view, activate, change, delete objects) conferred by membership of those user groups. That User Group may define External Group names. A user who successfully logs in using SAML / Single Sign-on is considered a member of a User Group, and has the access rights of that User Group, if  she is a member of any of the User Group's External Login Groups (matched by name).

See Configure Groups for External Login for how to configure External Login groups.

Use the encrypted connection

To use the encrypted connection, the protocol of the connection specified in phixflow-login.xml must be set to ldaps:// instead of ldap://.

The AD server’s certificate must be installed in the Java Certification Store on the PhixFlow application server. To do this you must obtain a certificate file from the AD server and install it.

One way of installing the certificate on the PhixFlow Application server is using keytool. In the command prompt type:

keytool -import -alias example -keystore  /path/to/java/cacerts -file example.der

keytool is provided as part of the standard Java installation.

Troubleshooting

Enhanced diagnostics can be generated by adding the lines

# detailed logging for AD connection attempts
log4j.logger.org.springframework.security=debug
log4j.logger.com.accipia.centerview.util.ContextUserExtractor=debug
log4j.logger.com.accipia.centerview.util.security=debug
log4j.logger.com.accipia.centerview.model.POJOImpl=debug

to your log4j.properties file - see Server Logging for details on controlling logging options with this file, and where to find the results.

Note that with all options applied, the log files generated will be very large. You must switch off these options as soon as you have completed your tests. You can comment out the lines in the log4j.properties file, if you want to keep them in the file, by placing a # at the beginning of each line.

You could also consider applying a more limited set of debugging options, e.g.

log4j.logger.org.springframework.security=debug
log4j.logger.com.accipia.centerview.util.security=debug

This will not give you as complete a log of what is happening during a login attempt, but the log files generated will be smaller. In particular, this reduced set of debugging options will include messages from

com.accipia.centerview.util.security.ActiveDirectoryLdapAuthenticationProvider

which provides information about what groups the user attempting to login belongs to.

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