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

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Forwarding original client BA header information –b ignore The –b ignore option instructs WebSEAL to pass the original client Basic Authentication (BA) header straight to the back-end server without interference. WebSEAL can be configured to authenticate this BA client information or ignore the BA header supplied by the client and forward the header, without modification, to the back-end server. Note: This is not a true single sign-on mechanism, but rather a direct login to the third-party server, transparent to WebSEAL. The following conditions exist for this solution: v The back-end server requires client identity information via BA The back-end server will send a Basic Authentication challenge back to the client. The client responds with user name and password information which the WebSEAL server passes through without modification. v The back-end server maintains its own client-supplied passwords v WebSEAL is configured to supply the back-end server with the user name and password contained in the original client request. v Because sensitive authentication information (user name and password) is passed across the junction, the security of the junction is important. An SSL junction is highly recommended. Removing client BA header information –b filter The –b filter option instructs WebSEAL to remove all Basic Authentication header information from any client requests before forwarding the requests to the back-end server. In this scenario, WebSEAL becomes the single security provider. The following conditions exist for this solution: v Basic Authentication is configured between the client and WebSEAL v The back-end server does not require Basic Authentication v The back-end server can be accessed only through WebSEAL v WebSEAL handles authentication on behalf of the back-end server If you need to supply the back-end server with some client information, you can combine this option with the –c option to insert Tivoli Access Manager client identity information into HTTP header fields. See “Supplying client identity in HTTP headers (–c)” on page 298. Supplying user names and passwords from GSO –b gso The –b gso option instructs WebSEAL to supply the back-end server with authentication information (user name and password) obtained from a server that is set up to handle global sign-on (GSO). The following conditions exist for this solution: v The back-end server applications require different user names and passwords that are not contained in the WebSEAL registry. 318 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
v Security is important for both WebSEAL and the back-end server. Because sensitive authentication information (user name and password) is passed across the junction, the security of the junction is important. An SSL junction is highly recommended. This mechanism is fully described in “Using global sign-on (GSO)” on page 320. Chapter 11. Single sign-on solutions across junctions 319
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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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Page 298 and 299: For example: [e-community-sso] vf-u
Page 300 and 301: [server] pre-510-compatible-tokens
Page 302 and 303: [ecsso-incoming-attributes] my_spec
Page 304 and 305: WebSEAL junctions overview You can
Page 306 and 307: Managing junctions with Web Portal
Page 308 and 309: Configuring a basic WebSEAL junctio
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Page 312 and 313: v It is highly recommended that you
Page 314 and 315: WebSEAL-to-WebSEAL junctions over S
Page 316 and 317: v “Processing URLs in requests”
Page 318 and 319: Modifying absolute URLs with script
Page 320 and 321: To solve this problem: 1. Always wr
Page 322 and 323: You must create the jmt.conf mappin
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
Page 334 and 335: lcp_uri URI encoded local code page
Page 336 and 337: v Do not mark any certificate in th
Page 338 and 339: 1. Copy query_contents.sh into a fu
Page 340 and 341: Typical output looks like: 100 inde
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Page 344 and 345: Configuring BA headers for single s
Page 348 and 349: Using global sign-on (GSO) Tivoli A
Page 350 and 351: Configuring a GSO-enabled WebSEAL j
Page 352 and 353: Configuring single sign-on to IBM W
Page 354 and 355: Configuring single sign-on forms au
Page 356 and 357: WebSEAL parses the HTML page to ide
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Page 364 and 365: Supporting CGI programming To suppo
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Page 368 and 369: v Short name of the server v IP add
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Page 382 and 383: The security policy To provide suit
Page 386 and 387: Overview of ADI retrieval The Tivol
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Page 390 and 391: Retrieving ADI from the user creden
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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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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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