IBM Tivoli Access Manager for e-business: WebSEAL Administration ...

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Automatic redirection during user login This section contains the following topics: v “Overview of automatic redirection” v “Enabling automatic redirection” v “Disabling automatic redirection” on page 213 v “Limitations” on page 213 Overview of automatic redirection When a user makes a request for a resource in a WebSEAL domain, WebSEAL sends the resource to the user upon successful authentication and policy checks. As an alternative to this standard response, you can configure WebSEAL to automatically redirect the user to a specially designated home, or welcome page. This forced redirection at login is appropriate, for example, when users enter the WebSEAL domain through a portal page. Automatic redirection also overrides user attempts to directly access specific pages within the domain by selecting user bookmarks. The automatic redirection following process flow is as follows: 1. The user sends a request and successfully authenticates. 2. WebSEAL builds a custom response and returns it to the browser as a redirect. This redirect response contains the URL value specified by the login-redirect-page parameter in the WebSEAL configuration file. 3. The browser follows the redirect response (containing the configured URL). 4. WebSEAL returns the page located at the configured URL. Automatic redirection at login is enabled and disabled independently for each authentication method. Automatic redirection is supported for the following authentication methods: v Basic authentication v Forms authentication v Token authentication Enabling automatic redirection To configure automatic redirection, complete the following steps: 1. Open the WebSEAL configuration file for editing. 2. Enable automatic redirection for each of the applicable authentication methods by uncommenting the entry for each method in the [enable-redirects] stanza: [enable-redirects] redirect = forms-auth redirect = basic-auth redirect = token-auth The example above enabled automatic redirection for forms authentication, basic authentication, and token authentication. 3. Specify the URL to which the user is redirected after login. The URL can be expressed as an absolute or server-relative path. For example: [acnt-mgt] login-redirect-page = http://www.ibm.com or 212 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
[acnt-mgt] login-redirect-page = /jct/intro-page.html 4. Stop and restart the WebSEAL server. Disabling automatic redirection To disable automatic redirection, complete the following steps: 1. Open the WebSEAL configuration file for editing. 2. Disable automatic redirection for each of the applicable authentication methods by commenting or removing the entry for each authentication method in the [enable-redirects] stanza: [enable-redirects] #redirect = forms-auth #redirect = basic-auth #redirect = token-auth Note that the hash character ( # ) is added to the start of each line. The example above disabled automatic redirection for forms authentication, basic authentication, and token authentication. 3. Stop and restart the WebSEAL server. Limitations WebSEAL does not support automatic redirection at login under the following conditions: v When a Windows client has authenticated using SPNEGO protocol (and Kerberos authentication) as part of Windows desktop single sign-on. v During reauthentication. v When the browser is reopened while using basic authentication. Redirection works as expected the first time a user visits a page with a browser and authenticates with a valid user name and password. However, if that instance of the browser is closed and another opened, the redirected page is not displayed after the user is authenticated. Chapter 7. Advanced WebSEAL authentication 213
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IBM Tivoli Access Manager for e-bus
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Note Before using this information
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Silent configuration overview . . .
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Event capturing and logging . . . .
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Token authentication concepts . . .
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Configuring WebSEAL key database pa
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Preserving cookie names . . . . . .
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Logging . . . . . . . . . . . . . .
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xvi IBM Tivoli Access Manager for e
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This chapter introduces you to impo
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Web security information v IBM Tivo
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v Secure Sockets Layer Introduction
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The following documents associated
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Monospace Code examples, command li
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IBM Tivoli Access Manager WebSEAL:
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The access control list (ACL) An ac
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Note: Traditional applications bund
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v Authenticated clients access usin
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v A user makes a request for a reso
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A unified Web space simplifies the
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14 IBM Tivoli Access Manager for e-
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Server instance configuration This
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Table 1. WebSEAL instances sharing
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- When the Web document root is not
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-ssl_yn ssl_enable_yes_no -key_file
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Server instance configuration tasks
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Removing a server instance To remov
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Communication protocol configuratio
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Restricting connections from specif
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Cryptographic hardware for encrypti
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You can specify whether to enable F
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3. In the Open dialog window, selec
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Quality of protection levels You ca
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Configuring authorization database
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3. Change the settings for the data
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Multi-locale support with UTF-8 Thi
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WebSEAL generates logging and audit
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Configuring multi-locale support Co
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WebSEAL does not recognize UTF-8 en
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ackwards compatibility, the format
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Language System Directory English (
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Preventing vulnerability caused by
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Replicated front-end WebSEAL server
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The session cookie links to session
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Table 4. P3P default header values
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Table 6. Supported values for the c
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For each value specified for purpos
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example, when your compact policy s
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70 IBM Tivoli Access Manager for e-
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Server tasks Start a WebSEAL server
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Managing the Web space The followin
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You can configure the specific grap
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Parameter Description cache-type Sp
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HTTP data compression WebSEAL serve
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Compression policy in POPs You can
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HTTP error message pages When WebSE
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Filename Title Description HTTP Err
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Managing custom account management
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Macro Description %CERTAUTHN% Subst
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Backup and restore Tivoli Access Ma
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Problem determination tools for Web
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Logging WebSEAL serviceability mess
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Event capturing and logging You can
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In this example, none of the option
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Authentication event log output Aut
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Table 18. Authentication errors (co
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Log Files Location Parameter Enable
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Displaying referer.log The referer.
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WebSEAL-specific ACL policies The f
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Configuring three strikes login pol
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Configuring password strength polic
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Specific user and global settings T
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v token authentication v certificat
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The entry level = unauthenticated m
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Table 20. Example integer values fo
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pdadmin> pop modify test set ipauth
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Quality of protection POP policy Th
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128 IBM Tivoli Access Manager for e
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Overview of the authentication proc
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Managing session state A secure con
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This value corresponds to the numbe
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eauthenticating the user. WebSEAL u
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v Because the cookies are available
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Authentication configuration overvi
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Configuring multiple authentication
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3. When the client makes an additio
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You can configure the username and
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Configuration conditions If forms a
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If the security policy does require
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Setting Description accept-client-c
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Thus, the default value for cert-ca
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HTTP header authentication Tivoli A
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See also: v “Authentication metho
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Token authentication Tivoli Access
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Page 194 and 195: Failover authentication This sectio
Page 196 and 197: authenticates using forms authentic
Page 198 and 199: Administrators can configure WebSEA
Page 200 and 201: cookie. By using the cookie, the We
Page 202 and 203: Specify the protocol for failover c
Page 204 and 205: Backwards compatibility WebSEAL ser
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Page 216 and 217: Switch user authentication The WebS
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Page 220 and 221: supported mechanism, an additional
Page 222 and 223: The authentication method parameter
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Page 228 and 229: Server-side request caching This se
Page 230 and 231: v “Modifying request-body-max-rea
Page 232 and 233: Configuring reauthentication based
Page 234 and 235: Extending the session cache entry l
Page 236 and 237: Configuring reauthentication based
Page 238 and 239: Extending the session cache entry l
Page 242 and 243: Configuring post password change pr
Page 244 and 245: WebSEAL provides an external authen
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Page 248 and 249: Credential refresh This section con
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Page 252 and 253: Credential refresh configuration To
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Page 256 and 257: Managing client-side and server-sid
Page 258 and 259: At installation, WebSEAL uses the s
Page 260 and 261: Setting the maximum number of cache
Page 262 and 263: Windows desktop single sign-on This
Page 264 and 265: v Failover authentication The failo
Page 266 and 267: Each WebSEAL instance must have a s
Page 268 and 269: highly secure password, such as a r
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Page 272 and 273: v When a problem occurs, consider e
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v The domain-specific cookie contai
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owser is Microsoft Internet Explore
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1. Enabling and disabling e-communi
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[e-community-domain-keys] dA.com =
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For example: [e-community-sso] vf-u
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[server] pre-510-compatible-tokens
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[ecsso-incoming-attributes] my_spec
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WebSEAL junctions overview You can
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Managing junctions with Web Portal
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Configuring a basic WebSEAL junctio
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Mutually authenticated SSL junction
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v It is highly recommended that you
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WebSEAL-to-WebSEAL junctions over S
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v “Processing URLs in requests”
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Modifying absolute URLs with script
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To solve this problem: 1. Always wr
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You must create the jmt.conf mappin
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Part 2: -j junctions modify Set-Coo
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Supplying client identity in HTTP h
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[junction] max-webseal-header-size
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ack-end server UUID to each front-e
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v Back-end server 2 is called APP2
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lcp_uri URI encoded local code page
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v Do not mark any certificate in th
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1. Copy query_contents.sh into a fu
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Typical output looks like: 100 inde
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Configuring BA headers for single s
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Forwarding original client BA heade
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Using global sign-on (GSO) Tivoli A
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Configuring a GSO-enabled WebSEAL j
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Configuring single sign-on to IBM W
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Configuring single sign-on forms au
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WebSEAL parses the HTML page to ide
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[loginpage1] login-page = /cgi-bin/
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It is not necessary to specify hidd
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Supporting CGI programming To suppo
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Supporting back-end server-side app
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v Short name of the server v IP add
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pdadmin> objectspace create /Resour
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A single user that logs in multiple
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Note: If you use Web Portal Manager
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Object Space Entry URL Template /ow
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The following sample dynurl.conf fi
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The security policy To provide suit
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Overview of ADI retrieval The Tivol
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The resource-manager-provided-adi p
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Retrieving ADI from the user creden
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Dynamic ADI retrieval Rules can be
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Basic configuration Basic configura
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trace_verbose_get_entitlement If se
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Erandt_Securtities_Entitlements e
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http://ese.erant.com/attributes 1 U
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Windows C:\Program Files\Tivoli\PDW
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including tracking CGI types, compi
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Stanza organization The remainder o
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Server configuration v [server] v [
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HTTP/1.1 connection timeout, in sec
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Location of the file that contains
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Enable or disable support for UTF-8
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Specifies how WebSEAL responds to r
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Host name of the LDAP server. The W
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cache-group-expire-time = number_of
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String that specifies the key label
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Active Directory [uraf-ad] stanza a
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ind-pwd = admin_password Encoded ad
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LDAP port number for the Lotus Domi
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Secure Socket Layer [ssl] stanza we
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Disables support for SSL Version 2.
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Port number for communication with
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Indicates whether automatic refresh
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Authentication methods [ba] stanza
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Specifies how to handle certificate
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Step-up authentication levels. WebS
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Fully qualified path for a library
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failover-certificate = fully_qualif
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Authentication failover v [failover
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List of attributes from the origina
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Cross-domain single sign-on v [cdss
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attribute_pattern = {preserve|refre
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Integer value specifying the port n
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File names for keys for any domains
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List of string values to specify th
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Integer value for lifetime, in seco
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Content This section contains the f
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Specifies how standard WebSEAL HTML
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Page containing a change password f
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Automatic redirect v [acnt-mgt] v [
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List containing system environment
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Relative path name to a graphics fi
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Content compression v [compress-mim
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Content encodings [content-encoding
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Junction management [junction] stan
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Positive integer value indicating t
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Document filtering [filter-url] sta
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Scheme filtering [filter-schemes] s
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Script filtering v [script-filterin
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Credential refresh [credential-refr
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Integer value that specifies the ti
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Integer value that specifies the ti
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Enables or disables the requests lo
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Auditing [aznapi-configuration] sta
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Specifies event logging for the spe
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The maximum size of the in-memory p
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Policy server v [policy-director] v
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Specifies the type of access the us
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v state Mechanisms for maintaining
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Specifies the purpose of the inform
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Specifies the recipients of the inf
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For example, if the configured name
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-p port TCP port of the back-end th
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IBM may use or distribute any of th
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asic authentication configuring 145
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F failover authentication configura
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key management (continued) managing
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eauthentication (continued) based o
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User Registry Adapter Framework (UR
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