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

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Thus, the default value for cert-cache-max-entries is 1024, which is one quarter of the default value for ssl-max-entries, which is 4096. Note: Most client requests to WebSEAL occur over SSL connections, and all requests over SSL connections without certificates must check the cache. Thus, keeping the cache size smaller can significantly improve performance. Set the timeout for Certificate SSL ID cache This configuration step applies only when delayed certificate authentication has been enabled. 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, adjust the value of cert-cache-timeout as necessary. [certificate] cert-cache-timeout = 120 The value is the maximum lifetime for an entry in the cache, expressed as a number of seconds. Use the default value unless your conditions warrant modifying it. Possible reasons to modify the value: v Systems with memory restrictions may want to reduce the expiration time. v The expiration time might need to be increased if there is a significant lag between the time when the user initiates a certificate transfer and when the user actually submits the certificate. v Lower values clean out the cache sooner when no certificate authentications are required. This frees system memory. Specify an error page for incorrect protocol This configuration step applies only when delayed certificate authentication has been enabled. WebSEAL provides a default HTML page containing an error message to be displayed when an authenticated user attempts to increase the authentication strength level to client authentication from an HTTP session. Users attempting to increase authentication level to certificate authentication must use the HTTPS protocol. 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-stepup-http = certstepuphttp.html 154 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
Disable certificate authentication To disable certificate authentication: 1. Stop the WebSEAL server. 2. Edit the WebSEAL configuration file. In the [certificate] stanza, specify the following key = value pair: [certificate] accept-client-certs = never 3. Restart the WebSEAL server. Disable the Certificate SSL ID cache The Certificate SSL ID cache is used only with delayed certificate authentication or authentication strength step-up to certificate authentication. The disabling of the cache occurs automatically, based on the configuration settings for certificate authentication. To verify that the cache is disabled, examine the value for accept-client-certs in the [certificate] stanza. Verify that the value is one of the following: v required v optional v never Verify that the value is not prompt_as_needed. Chapter 6. Authentication 155
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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
Page 132 and 133: Table 18. Authentication errors (co
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 148 and 149: The entry level = unauthenticated m
Page 150 and 151: Table 20. Example integer values fo
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Page 154 and 155: Quality of protection POP policy Th
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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
Page 166 and 167: v Because the cookies are available
Page 168 and 169: Authentication configuration overvi
Page 170 and 171: Configuring multiple authentication
Page 172 and 173: 3. When the client makes an additio
Page 174 and 175: You can configure the username and
Page 176 and 177: Configuration conditions If forms a
Page 178 and 179: If the security policy does require
Page 180 and 181: Setting Description accept-client-c
Page 184 and 185: HTTP header authentication Tivoli A
Page 186 and 187: See also: v “Authentication metho
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Page 190 and 191: 2. WebSEAL returns an authenticatio
Page 192 and 193: 4. Restart the WebSEAL server. See
Page 194 and 195: Failover authentication This sectio
Page 196 and 197: authenticates using forms authentic
Page 198 and 199: Administrators can configure WebSEA
Page 200 and 201: cookie. By using the cookie, the We
Page 202 and 203: Specify the protocol for failover c
Page 204 and 205: Backwards compatibility WebSEAL ser
Page 206 and 207: [failover-add-attributes] attribute
Page 208 and 209: v When this value is no, and the se
Page 210 and 211: SPNEGO protocol and Kerberos authen
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Page 216 and 217: Switch user authentication The WebS
Page 218 and 219: 9. The administrator ends the switc
Page 220 and 221: supported mechanism, an additional
Page 222 and 223: The authentication method parameter
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Page 228 and 229: Server-side request caching This se
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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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