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

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Setting Description accept-client-certs = prompt_as_needed Client is not required to authenticate with a certificate at session start-up. The client can later initiate certificate authentication. This setting enables delayed certificate authentication mode. For example, to prompt users for a client certificate only when the client encounters a resource that requires certificate authentication, enter: [certificate] accept-client-certs = prompt_as_needed Note that this setting is used when implementing an authentication strength policy (step-up) for certificate authentication. 2. When accept-client-certs is set to either optional or required, skip this step and continue to the next step. Specify the certificate authentication mechanism To specify a certificate authentication mechanism, complete the following steps: 1. Verify that certificate authentication is enabled. See “Enable certificate authentication” on page 151. 2. Edit the WebSEAL configuration file. In the [certificate] stanza, specify the appropriate certificate authentication built-in shared library as the value for the cert-ssl key: Table 25. Certificate authentication shared libraries Operating system Shared library Solaris libsslauthn.so AIX libsslauthn.a HPUX libsslauthn.sl Linux libsslauthn.so Windows sslauthn.dll For example, on a Solaris system: [authentication-mechanisms] cert-ssl= libsslauthn.so See also: v “Authentication methods” on page 414 v “Authentication libraries” on page 419 Specify the certificate login form WebSEAL provides an HTML page containing a login form, to be presented to users when the need for certificate authentication has been identified. Administrators can choose to either use the default login form, customize the login form, or specify an entirely different customized login page. Typically, administrators use the default file but customize the contents of the form. Administrators who choose to create a new HTML file must edit the WebSEAL configuration file to indicate the location of the new file. 152 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
The default WebSEAL configuration file entry is: [acnt-mgt] certificate-login = certlogin.html Specify the certificate login error page WebSEAL provides a default HTML page containing an error message that is displayed when a user fails to successfully authenticate using client-side certificate authentication. Administrators can choose to either use the default error page, customize the error message, or specify an entirely different customized error page. Typically, administrators use the default page but might customize the contents of the error message. Administrators who choose to create a new HTML error page must edit the WebSEAL configuration file to indicate the location of the new page. The default WebSEAL configuration file entry is: [acnt-mgt] cert-failure = certfailure.html Disable SSL session IDs for session tracking This configuration step applies only when delayed certificate authentication has been enabled. Disable the use of SSL session IDs to track session state. Set the following stanza entry in the WebSEAL configuration file: [ssl] ssl-id-sessions = no Note: In this case, SSL IDs cannot be used to maintain user sessions because when the user is prompted for a certificate, the user’s SSL ID will change. If ssl-id-sessions is set to yes, WebSEAL generates an error message upon startup and shuts down. Enable and configure the Certificate SSL ID cache This configuration step applies only when delayed certificate authentication has been enabled. To configure the cache, complete the following steps: 1. Verify that certificate authentication is enabled. See “Enable certificate authentication” on page 151 2. Specify the maximum number of entries allowed in the cache. Edit the WebSEAL configuration file. In the [certificate] stanza, assign a value to cert-cache-max-entries: [certificate] cert-cache-max-entries = 1024 The value corresponds to the maximum number of concurrent certificate authentications. The default value is one quarter of the default number of entries in the SSL ID cache. (Most SSL sessions do not require certificate logins or will only require certificate authentication once for the session). The number of entries in the SSL ID cache is set in the [ssl] stanza: [ssl] ssl-max-entries = 4096 Chapter 6. Authentication 153
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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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Page 134 and 135: Log Files Location Parameter Enable
Page 136 and 137: Displaying referer.log The referer.
Page 138 and 139: WebSEAL-specific ACL policies The f
Page 140 and 141: Configuring three strikes login pol
Page 142 and 143: Configuring password strength polic
Page 144 and 145: Specific user and global settings T
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Page 150 and 151: Table 20. Example integer values fo
Page 152 and 153: pdadmin> pop modify test set ipauth
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Page 158 and 159: Overview of the authentication proc
Page 160 and 161: Managing session state A secure con
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Page 164 and 165: eauthenticating the user. WebSEAL u
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Page 168 and 169: Authentication configuration overvi
Page 170 and 171: Configuring multiple authentication
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Page 176 and 177: Configuration conditions If forms a
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Page 190 and 191: 2. WebSEAL returns an authenticatio
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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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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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[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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