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Configure Ranger Authentication

This section describes how to configure Ranger authentication for UNIX, LDAP, and AD.

Configuring Ranger UNIX Authentication

Use the following steps to configure Ranger authentication for UNIX.

  1. Select the Advanced tab on the Customize Services page.

  2. Under Ranger Settings, specify the Ranger Access Manager/Service Manager host address in the External URL box in the format http://<your_ranger_host>:6080.

  3. Under Ranger Settings, select UNIX.

    HTTP is enabled by default -- if you disable HTTP, only HTTPS is allowed.

  4. Under UNIX Authentication Settings, set the following properties.

    Table 3.13. UNIX Authentication Settings

    PropertyDescriptionDefault ValueExample Value
    Allow remote LoginFlag to enable/disable remote login. Only applies to UNIX authentication.truetrue
    ranger.unixauth.service.hostnameThe address of the host where the UNIX authentication service is running. {{ugsync_host}}

    {{ugsync_host}}

    ranger.unixauth.service.portThe port number on which the UNIX authentication service is running. 51515151


    [Note]Note

    Properties with value {{xyz}} are macro variables that are derived from other specified values in order to streamline the configuration process. Macro variables can be edited if required -- if you need to restore the original value, click the Set Recommended symbol at the right of the property box.

Configuring Ranger LDAP Authentication
[Note]Note

You can use the LDAP Connection Check tool to determine authentication settings for LDAP.

Use the following steps to configure Ranger authentication for LDAP.

  1. Select the Advanced tab on the Customize Services page.

  2. Under Ranger Settings, specify the Ranger Access Manager/Service Manager host address in the External URL box in the format http://<your_ranger_host>:6080.

  3. Under Ranger Settings, select LDAP.

  4. Under LDAP Settings, set the following properties.

    Table 3.14. LDAP Authentication Settings

    PropertyDescriptionDefault ValueExample Value
    ranger.ldap.base.dnThe Distinguished Name (DN) of the starting point for directory server searches.dc=example,dc=comdc=example,dc=com
    Bind UserThe full Distinguished Name (DN), including Common Name (CN) of an LDAP user account that has privileges to search for users. This is a macro variable value that is derived from the Bind User value from Ranger User Info > Common Configs.{{ranger_ug_ldap_bind_dn}}{{ranger_ug_ldap_bind_dn}}
    Bind User PasswordPassword for the Bind User. This is a macro variable value that is derived from the Bind User Password value from Ranger User Info > Common Configs.  
    ranger.ldap.group. roleattributeThe LDAP group role attribute.cncn
    ranger.ldap.referralSee description below.ignorefollow | ignore | throw
    LDAP URLThe LDAP server URL. This is a macro variable value that is derived from the LDAP/AD URL value from Ranger User Info > Common Configs.{{ranger_ug_ldap_url}}{{ranger_ug_ldap_url}}
    ranger.ldap.user. dnpattern

    The user DN pattern is expanded when a user is being logged in. For example, if the user "ldapadmin" attempted to log in, the LDAP Server would attempt to bind against the DN "uid=ldapadmin,ou=users,dc=example,dc=com" using the password the user provided>

    uid={0},ou=users, dc=xasecure,dc=netcn=ldapadmin,ou=Users, dc=example,dc=com
    User Search FilterThe search filter used for Bind Authentication. This is a macro variable value that is derived from the User Search Filter value from Ranger User Info > User Configs.{{ranger_ug_ldap_user_searchfilter}}{{ranger_ug_ldap_user_searchfilter}}

    [Note]Note

    Properties with value {{xyz}} are macro variables that are derived from other specified values in order to streamline the configuration process. Macro variables can be edited if required -- if you need to restore the original value, click the Set Recommended symbol at the right of the property box.

    There are three possible values for ranger.ldap.referral: follow, throw, and ignore. The recommended setting is follow.

    When searching a directory, the server might return several search results, along with a few continuation references that show where to obtain further results. These results and references might be interleaved at the protocol level.

    • When this property is set to follow, the LDAP service provider processes all of the normal entries first, and then follows the continuation references.

    • When this property is set to throw, all of the normal entries are returned in the enumeration first, before the ReferralException is thrown. By contrast, a "referral" error response is processed immediately when this property is set to follow or throw.

    • When this property is set to ignore, it indicates that the server should return referral entries as ordinary entries (or plain text). This might return partial results for the search.

Configuring Ranger Active Directory Authentication
[Note]Note

You can use the LDAP Connection Check tool to determine authentication settings for Active Directory.

Use the following steps to configure Ranger authentication for Active Directory.

  1. Select the Advanced tab on the Customize Services page.

  2. Under Ranger Settings, specify the Ranger Access Manager/Service Manager host address in the External URL box in the format http://<your_ranger_host>:6080.

  3. Under Ranger Settings, select ACTIVE_DIRECTORY.

  4. Under AD Settings, set the following properties.

    Table 3.15. AD Settings

    PropertyDescriptionDefault ValueExample Value
    ranger.ldap.ad.base.dnThe Distinguished Name (DN) of the starting point for directory server searches.dc=example,dc=comdc=example,dc=com
    ranger.ldap.ad.bind.dnThe full Distinguished Name (DN), including Common Name (CN) of an LDAP user account that has privileges to search for users. This is a macro variable value that is derived from the Bind User value from Ranger User Info > Common Configs.{{ranger_ug_ldap_bind_dn}}{{ranger_ug_ldap_bind_dn}}
    ranger.ldap.ad.bind.passwordPassword for the bind.dn. This is a macro variable value that is derived from the Bind User Password value from Ranger User Info > Common Configs.  
    Domain Name (Only for AD)The domain name of the AD Authentication service.  dc=example,dc=com
    ranger.ldap.ad.referralSee description below. ignorefollow | ignore | throw
    ranger.ldap.ad.urlThe AD server URL. This is a macro variable value that is derived from the LDAP/AD URL value from Ranger User Info > Common Configs.{{ranger_ug_ldap_url}}{{ranger_ug_ldap_url}}
    ranger.ldap.ad.user.searchfilterThe search filter used for Bind Authentication. This is a macro variable value that is derived from the User Search Filter value from Ranger User Info > User Configs.{{ranger_ug_ldap_user_searchfilter}}{{ranger_ug_ldap_user_searchfilter}}

    [Note]Note

    Properties with value {{xyz}} are macro variables that are derived from other specified values in order to streamline the configuration process. Macro variables can be edited if required -- if you need to restore the original value, click the Set Recommended symbol at the right of the property box.

    There are three possible values for ranger.ldap.ad.referral: follow, throw, and ignore. The recommended setting is follow.

    When searching a directory, the server might return several search results, along with a few continuation references that show where to obtain further results. These results and references might be interleaved at the protocol level.

    • When this property is set to follow, the AD service provider processes all of the normal entries first, and then follows the continuation references.

    • When this property is set to throw, all of the normal entries are returned in the enumeration first, before the ReferralException is thrown. By contrast, a "referral" error response is processed immediately when this property is set to follow or throw.

    • When this property is set to ignore, it indicates that the server should return referral entries as ordinary entries (or plain text). This might return partial results for the search. In the case of AD, a PartialResultException is returned when referrals are encountered while search results are processed.

    When you have finished configuring all of the Customize Services Settings, click Next at the bottom of the page to continue with the installation.

  5. When you save the authentication method as Active Directory, a Dependent Configurations pop-up may appear recommending that you set the authentication method as LDAP. This recommended configuration should not be applied for AD, so you should clear (un-check) the ranger.authentication.method check box, then click OK.