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

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Configuring a GSO-enabled WebSEAL junction Support for GSO is configured at the junction between WebSEAL and a back-end server. To create a junction that enables GSO, use the create command with the –b gso option. The following example illustrates the syntax for the create command: create -t tcp -h host-name -b gso -T resource jct-point Options for setting up GSO junctions are listed below: Options Description –b gso Specifies that GSO should provide authentication information for all requests crossing this junction. –T resource/resource-group Specifies the GSO resource or resource group. The resource name used as the argument to this option must exactly match the resource name as listed in the GSO database. Required for gso junctions. A junction used in a WebSEAL/GSO solution can be made secure through SSL by additionally applying the –t ssl option when creating the junction. Always use SSL junctions with GSO to ensure encryption of credentials and all data. Examples of GSO-enabled WebSEAL junctions Junction the application resource travel-app on host sales_svr to junction point /sales: create -t tcp -b gso -T travel-app -h sales_svr /sales Junction the application resource payroll-app on host adm_svr to junction point /admin and make the junction secure with SSL: create -t ssl -b gso -T payroll-app -h adm_svr /admin Note: In the above example, the –t ssl option dictates a default port of 443. Configuring the GSO cache The Global Sign-on (GSO) cache functionality allows you to improve the performance of GSO junctions in a high load environment. By default, the GSO cache is disabled. Without the enhancement of the cache, a call to the user registry server is required for each retrieval of GSO target information (GSO user name and GSO password). Parameters for configuring the GSO cache are located in the [gso-cache] stanza of the WebSEAL configuration file. You must first enable the cache. The remaining parameters configure the cache size and the timeout values for cache entries. Larger lifetime and inactivity timeout values improve performance, but increase the risk of information being exposed in the WebSEAL memory. Do not enable the GSO cache if GSO junctions are not used in your network solution. Parameter Description gso-cache-enabled Enable and disable the GSO cache functionality. Values are yes or no. Default is no. 322 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
Parameter Description gso-cache-size Sets the maximum number of entries allowed in the cache hash table. Set this value to approximate the peak number of concurrent user sessions that access an application across a GSO junction. A high value uses more memory but results in faster information access. Each cache entry consumes approximately 50 bytes. gso-cache-entry-lifetime Maximum time (in seconds) any cache entry can remain in the cache, regardless of activity. After a cache entry expires, the next request by that same user requires a new call to the user registry server. Default value is 900 seconds. gso-cache-entry-idle-timeout Maximum time (in seconds) an inactive cache entry can remain in the cache. Default value is 120 seconds. For more information, see “Global Sign-On cache” on page 467. Chapter 11. Single sign-on solutions across junctions 323
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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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2. WebSEAL returns an authenticatio
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4. Restart the WebSEAL server. See
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Failover authentication This sectio
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authenticates using forms authentic
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Administrators can configure WebSEA
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cookie. By using the cookie, the We
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Specify the protocol for failover c
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Backwards compatibility WebSEAL ser
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[failover-add-attributes] attribute
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v When this value is no, and the se
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SPNEGO protocol and Kerberos authen
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v The client cannot use an SSL sess
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Switch user authentication The WebS
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9. The administrator ends the switc
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supported mechanism, an additional
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The authentication method parameter
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The default file name is switchuser
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xauthn_username xauthn_qop xauthn_i
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Server-side request caching This se
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v “Modifying request-body-max-rea
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Configuring reauthentication based
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Extending the session cache entry l
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Configuring reauthentication based
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Extending the session cache entry l
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Automatic redirection during user l
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Configuring post password change pr
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WebSEAL provides an external authen
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credattrs_email joeuser@bigco.com c
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Credential refresh This section con
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The default lifetime of data in the
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Credential refresh configuration To
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efresh can succeed. Likewise, when
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Managing client-side and server-sid
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At installation, WebSEAL uses the s
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Setting the maximum number of cache
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Windows desktop single sign-on This
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v Failover authentication The failo
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Each WebSEAL instance must have a s
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highly secure password, such as a r
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Note: The location of the kinit uti
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v When a problem occurs, consider e
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The link contains a special CDSSO m
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2. Edit /etc/nsswitch.conf so the h
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[authentication-mechanisms] sso-cre
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http://websealB/resource.html?PD-ID
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Each entry in the WebSEAL is assign
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e-community single sign-on E-commun
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A user who fails authentication wit
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4. After successful login, the MAS
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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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Page 304 and 305: WebSEAL junctions overview You can
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Page 316 and 317: v “Processing URLs in requests”
Page 318 and 319: Modifying absolute URLs with script
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Page 324 and 325: Part 2: -j junctions modify Set-Coo
Page 326 and 327: Supplying client identity in HTTP h
Page 328 and 329: [junction] max-webseal-header-size
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Page 332 and 333: v Back-end server 2 is called APP2
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Page 344 and 345: Configuring BA headers for single s
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Page 352 and 353: Configuring single sign-on to IBM W
Page 354 and 355: Configuring single sign-on forms au
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Page 368 and 369: v Short name of the server v IP add
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Page 386 and 387: Overview of ADI retrieval The Tivol
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Erandt_Securtities_Entitlements e
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http://ese.erant.com/attributes 1 U
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376 IBM v v /opt/pdwebars/protocol_
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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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