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

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2. WebSEAL returns an authentication page, requesting username and passcode. 3. User fills in username and tokencode and submits form to WebSEAL’s authentication library. When the user has no PIN, either because the tokencard is new or the administrator reset the PIN, the tokencode is the same as the passcode. When the user has a PIN, but the tokencard is in New PIN mode, the user enters the PIN plus the tokencode. 4. WebSEAL’s token authentication library sends the authentication request to the ACE/Server. 5. The ACE/Server processes the request as follows: a. If the authentication is unsuccessful, the result is returned to the WebSEAL token authentication library, which displays an error page to the client (return to step 2). b. If the token was not in new PIN mode, the user is authenticated. The WebSEAL token authentication library returns success to the WebSEAL server, which serves the requested protected Web object. (End of authentication workflow). c. If the token is in new PIN mode, the ACE/Server returns the NEW_PIN error code to the WebSEAL token authentication library. 6. WebSEAL presents to the user the password expired form. 7. User enters tokencode or passcode and the new PIN and posts it to WebSEAL. 8. WebSEAL checks to see if a password strength server is deployed. a. If a password strength server is not deployed, WebSEAL continues to step 9. b. If a password strength server is deployed, WebSEAL checks the new PIN. If the PIN is valid, WebSEAL continues to step 9. If the PIN is not valid, WebSEAL returns to step 6. 9. The WebSEAL authentication library sends the tokencode and new PIN to the ACE/Server. 10. The ACE/Server returns a response code. 11. If the PIN set call to the ACE/Server is successful, WebSEAL returns the originally requested protected Web object to the client. If the PIN set call fails, authentication workflow returns to step 6. Using token authentication with a password strength server WebSEAL also supports a password strength server that is specific to an authentication mechanism. This support enables security architects to develop different password strength policies for different authentication methods while using only WebSEAL authentication mechanisms. A four-digit, numeric PIN, for example, may qualify for the ACE/Server but would fail against a more stringent password strength server. RSA SecurID client does not support Linux for zSeries The RSA SecurID client is not supported on the Linux for zSeries platforms. This means that the WebSEAL token authentication module cannot support Linux for zSeries platforms. Token authentication configuration To configure token authentication, the instructions in the following sections must be completed: v “Enable token authentication” on page 163 v “Specify the token authentication mechanism” on page 163 162 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
v “Enable access to the SecurID client library” on page 164 When a password strength server is used with token authentication, the instructions in the following sections must be completed: v “Specify a customized password strength library” on page 164 v “Enable backwards compatibility for customized token authentication library” on page 165 To unconfigure token authentication, complete the instructions in the following section: v “Disable token authentication” on page 165 Enable token authentication Token authentication is disabled by default. To enable token authentication: 1. Stop the WebSEAL server. 2. Edit the WebSEAL configuration file. In the [token] stanza, specify the protocols to support in your network environment. The protocols are shown in the following table. Table 28. Enabling token authentication Protocol to support Configuration file entry HTTP token-auth = http HTTPS token-auth = https Both HTTP and HTTPS token-auth = both For example, to support both protocols: [token] token-auth = both 3. Restart the WebSEAL server. Specify the token authentication mechanism To configure a token authentication mechanism, complete the following steps: 1. Stop the WebSEAL server. 2. Ensure that token authentication is enabled. See “Enable token authentication.” 3. Edit the WebSEAL configuration file. In the [token] stanza, enter the appropriate shared library name as the value for the token-cdas key. The shared library names are shown in the following table. Table 29. Token authentication shared libraries Operating system Shared library Solaris libxtokenauthn.so AIX libxtokenauthn.a HPUX libxtokenauthn.sl Linux libxtokenauthn.so Windows xtokenauthn.dll For example, on Solaris: [authentication-mechanisms] token-cdas = libxtokenauthn.so Chapter 6. Authentication 163
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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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Page 216 and 217: Switch user authentication The WebS
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Page 232 and 233: Configuring reauthentication based
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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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[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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314 IBM Tivoli Access Manager for e
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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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346 IBM automatically with no user
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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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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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