Configuring an LDAP Domain

This section describes how to configure an LDAP domain so that LDAP users can access shared account resources.

Context

LDAP data is organized in a tree structure, which clearly shows the organizational information. A node on the tree is called an Entry. Each Entry has a distinguished name (DN). The DN of an Entry is composed of the base distinguished name (Base DN) and relative distinguished name (RDN). The Base DN refers to the position of the parent node where the Entry resides on the tree, and the RDN refers to an attribute that distinguishes the Entry from others.

A DN consists of the following parts:

Procedure

  1. Choose Resources > Access > Account.
  2. Click the name of the desired account. On the page that is displayed, click the Domain Configuration tab.
  3. Select LDAP and click Configure.

    The Configure LDAP Domain page is displayed on the right.

    Click Restore to Initial to restore the configured basic and advanced parameters to their initial values.

  4. Configure basic LDAP domain parameters. Table 1 describes related parameters.

    Table 1 Basic LDAP domain parameters

    Parameter

    Description

    Active Server Address

    IP address or domain name of the active LDAP domain server.

    NOTE:
    • Ensure that the IP address is reachable. Otherwise, executing user authentication commands or network commands will time out.
    • You can click Test to check whether the entered IP address can be pinged.

    Standby Server Address 1

    IP address or domain name of standby LDAP server 1.

    NOTE:
    • Ensure that the IP address is reachable. Otherwise, executing user authentication commands or network commands will time out.
    • You can click Test to check whether the entered IP address can be pinged.

    Standby Server Address 2

    IP address or domain name of standby LDAP server 2.

    NOTE:
    • Ensure that the IP address is reachable. Otherwise, executing user authentication commands or network commands will time out.
    • You can click Test to check whether the entered IP address can be pinged.

    Protocol

    Protocol used by the storage system to communicate with the LDAP domain server.

    • LDAP: The system uses the standard LDAP protocol to communicate with the LDAP domain server.

      When the LDAP protocol is used, the network communication between the system and the domain server is not encrypted, which may cause security risks. You are advised to use the LDAPS protocol.

    • LDAPS: The system uses the LDAPS protocol to communicate with the LDAP domain server The LDAPS protocol improves network communication security. If the domain server supports the LDAPS protocol, you are advised to select LDAPS.

    Port

    Port used by the storage system to communicate with the LDAP domain server.

    • When Protocol is set to LDAP, the default port number is 389.
    • When Protocol is set to LDAPS, the default port number is 636.

    Base DN

    Root directory of the domain server. That is, the start DN of the domain server specified for searching. After the Base DN is configured, all users in the Base DN can be added to the account.

    Each entry stored in the LDAP domain directory database has a unique identification, which can uniquely identify an object and its location in the directory tree. The identification of each entry in the database is called distinguished name (DN). The top of the directory tree is the root directory, that is, the Base DN.

    A DN consists of three attributes: cn, ou, and dc. For example, cn=Common name,ou=Organization unit,dc=example,dc=com is used to identify a user in an LDAP domain and ,dc=example,dc=com is the Base DN.

    [Example]

    dc=example,dc=com

    Bind Level

    Authentication type of the bind DN.

    • Simple: simple authentication.
    • SASL: simple authentication and security layer.

    Bind DN

    Binding is a process that a client initiates a connection request to establish a session to the LDAP server. If the LDAP server does not allow anonymous access, you need to specify the bind DN. A bind DN is used to query the directory server and must have the administrator permissions.

    [Example]

    cn=Manager,ou=people,dc=example,dc=com

    Bind Password

    Password of the bind DN.

    NOTE:

    A simple password may result in security issues. A complex password that contains uppercase letters, lowercase letters, digits, and special characters is recommended.

    Confirm Bind Password

    Enter the same bind DN password again.

  5. Click Advanced and set the advanced parameters. Table 2 describes related parameters.

    Table 2 Advanced LDAP service parameters

    Parameter

    Description

    Bind Using AD Credential

    Determine whether to enable Bind Using the AD Credential.

    If this parameter is enabled when the system has been added to the AD domain, the AD domain account can be used as the LDAP bind DN.

    User Directory

    User DN configured on the LDAP domain server.

    User Search Scope

    Search scope for user queries.

    • BASE: only searches the named DN.
    • ONELEVEL: searches the subnodes under the DN.
    • SUBTREE: searches the named DN and subnodes under the DN.

    User Group Directory

    User group DN configured on the LDAP domain server.

    User Group Search Scope

    Search scope for user group queries.

    • BASE: only searches the named DN.
    • ONELEVEL: searches the subnodes under the DN.
    • SUBTREE: searches the named DN and subnodes under the DN.

    Network Group DN

    Network group DN.

    Network Group Search Scope

    Search scope for network group queries.

    • BASE: only searches the named DN.
    • ONELEVEL: searches the subnodes under the DN.
    • SUBTREE: searches the named DN and subnodes under the DN.

    Search Timeout Duration (Seconds)

    Timeout duration that the client waits for the LDAP domain server to return the query result. The default value is 3.

    Connection Timeout Duration (Seconds)

    Timeout duration that the client establishes a connection with the LDAP domain server. The default value is 3.

    Idle Timeout Duration (Seconds)

    Timeout duration that the client has no communication with the LDAP domain server. The default value is 30.

    LDAP Schema Template

    Select an LDAP schema template.

    • RFC2307: schema based on RFC2307
    • AD_IDMU: schema based on active directory identity management in UNIX
    NOTE:
    • You can select a schema template for which relevant parameters are entered automatically. You can also customize relevant parameters instead of selecting a schema template.
    • A schema defines the structure and rules for LDAP directories and how LDAP servers identify category, attribute, and other information of LDAP directories.

    RFC2307 User Object

    Name of the RFC2307 posixAccount object class defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    • posixAccount (displayed by default when RFC2307 is selected in LDAP Schema Template)
    • User (displayed by default when AD_IDMU is selected in LDAP Schema Template)

    RFC2307 User Group Object

    Name of the RFC2307 posixGroup object class defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    • posixGroup (displayed by default when RFC2307 is selected in LDAP Schema Template)
    • Group (displayed by default when AD_IDMU is selected in LDAP Schema Template)

    RFC2307 Network Group Object

    Name of the RFC2307 nisNetgroup object class defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    nisNetgroup

    RFC2307 uid Attribute

    Name of the RFC2307 uid attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    uid

    RFC2307 uidNumber Attribute

    Name of the RFC2307 uidNumber attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    uidNumber

    RFC2307 gidNumber Attribute

    Name of the RFC2307 gidNumber attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    gidNumber

    RFC2307cn (for Groups) Attribute

    Name of the RFC2307cn attribute for groups defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    cn

    RFC2307cn (for Network Groups) Attribute

    Name of the RFC2307cn attribute for network groups defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    • cn (displayed by default when RFC2307 is selected in LDAP Schema Template)
    • name (displayed by default when AD_IDMU is selected in LDAP Schema Template)

    RFC2307 memberUid Attribute

    Name of the RFC2307 memberUid attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    memberUid

    RFC2307 memberNisNetgroup Attribute

    Name of the RFC2307 memberNisNetgroup attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    memberNisNetgroup

    RFC2307 nisNetgroupTriple Attribute

    Name of the RFC2307 nisNetgroupTriple attribute defined by the schema.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    nisNetgroupTriple

    RFC2307bis Supported

    Whether to enable the RFC2307bis attribute for the schema.

    RFC2307bis groupOfUniqueNames Object

    Name of the RFC2307bis groupOfUniqueNames object class defined by the schema. This parameter is valid only when RFC2307bis Supported is enabled.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    groupOfUniqueName

    RFC2307bis uniqueMember Object

    Name of the RFC2307bis uniqueMember attribute defined by the schema. This parameter is valid only when RFC2307bis Supported is enabled.

    [Value range]

    The value contains 0 to 1024 characters.

    [Default value]

    uniqueMember

  6. Click OK.
Parent topic: Configuring Domain Authentication