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NetWorker: How To Set up AD/LDAP Authentication

Summary: This KB provides an overview for how to add external authority to NetWorker using the NetWorker Management Console's (NMC) external authority wizard. Active Directory (AD) or Linux LDAP authentication can be used alongside the default NetWorker Administrator account or other local NMC accounts. ...

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Instructions

NOTE: For AD over SSL integrations the NetWorker Web User Interface should be used to configure the external authority. See NetWorker: How to configure "AD over SSL" (LDAPS) from The NetWorker Web User Interface (NWUI).

 

External Authority Resources can be created and managed from the NetWorker Management Console (NMC), NetWorker Web User Interface (NWUI), or authc scripts:

  • NetWorker Management Console (NMC): Log in to the NMC using the NetWorker Administrator account. Go to Setup->Users and Roles->External Authorities.
  • NetWorker Web User interface (NMC): Log in to the NWUI using the NetWorker Administrator account. Go to Authentication Server->External Authorities.
NOTE: This KB displays how to add AD/LDAP using the NMC. For detailed instructions using NWUI, see: NetWorker NWUI: How to Configure AD/LDAP from the NetWorker Web User Interface.


Log in to the NetWorker Management Console (NMC) with the default NetWorker Administrator account. Under the Setup tab-->User and Roles, there is a new option for External Authority.

NetWorker Management Console Setup Window For External Authority Repository
 
1. To add a new authority, right click in the External Authority window and select New.
2. In the External Authentication Authority box, you must populate the required fields with your AD/LDAP information.
3. Check the "Show Advanced Options" box to see all the fields.
Server Type Select LDAP if the authentication server is a Linux/UNIX LDAP server, Active Directory if you are using a Microsoft Active Directory server.
Authority Name Provide a name for this external authentication authority. This name can be whatever you want it to be, it is only to differentiate between other authorities when multiple are configured.
Provider Server Name This field should contain the Fully Qualified Domain Name (FQDN) of your AD or LDAP server.
Tenant Tenants can be used in environments where more than one authentication method may be used, or when multiple authorities must be configured. By default, the "default" tenant is selected. The use of tenants alters your log-in method. Log in to the NMC with "domain\user" for the default tenant, or "tenant\domain\user" for other tenants.
Domain Specify your full domain name (excluding a hostname). Typically this is your base-Distinguished Name (DN) which is consisted of your Domain Component (DC) values of your domain. 
Port Number For LDAP and AD integration, use port 389. For LDAP over SSL, use port 636. These ports are non-NetWorker default ports on the AD/LDAP server.
NOTE: Changing the port to 636 is not sufficient for configuring SSL. The CA certificate (and chain, if a chain is used) must be imported from the domain server to the authc server. See NetWorker: How to configure "AD over SSL" (LDAPS) from The NetWorker Web User Interface (NWUI).
User DN Specify the Distinguished Name  (DN) of a user account that has full read access to the LDAP or AD directory.
Specify the relative DN of the user account, or the full DN if overriding the value set in the Domain field.
User DN Password Specify the password of the user account specified.
Group Object Class The object class that identifies groups in the LDAP or AD hierarchy.
  • For LDAP, use groupOfUniqueNames or groupOfNames 
    • Note: There are other group object classes aside from groupOfUniqueNames and groupOfNames.  Use whatever object class is configured in the LDAP server.
  • For AD, use group
Group Search Path This field can be left blank in which case authc is capable of querying the full domain. Permissions must be granted for NMC/ NetWorker server access before these users/groups can log in the NMC and manage the NetWorker server. Specify the relative path to the domain instead of full DN.
Group Name Attribute The attribute that identifies the group name; for example, cn.
Group Member Attribute Specifies the group membership of the user within a group.
  • For LDAP:
    • When the Group Object Class is groupOfNames, the attribute is usually member.
    • When the Group Object Class is groupOfUniqueNames, the attribute is usually uniquemember.
  •  For AD, the value is usually member.
User Object Class The object class that identifies the users in the LDAP or AD hierarchy.
For example, inetOrgPerson or user
User Search Path Like Group Search Path this field can be left blank in which case authc is capable of querying the full domain. Specify the relative path to the domain instead of full DN.
User ID Attribute The user ID that is associated with the user object in the LDAP or AD hierarchy.
  • For LDAP, this attribute is commonly uid.
  • For AD, this attribute is commonly sAMAccountName.
For example, Active Directory integration:
Example of adding active directory authentication to NetWorker
NOTE: Consult with your AD/LDAP admin to confirm which AD/LDAP specific fields are needed for your environment.
 
4. Once all the fields are populated, click OK to add the new authority.
5. You can use the authc_mgmt command on your NetWorker server to confirm that the AD/LDAP groups/users are visible: 
authc_mgmt -u Administrator -p 'NetWorker_Admin_Pass' -e query-ldap-users -D query-tenant=tenant_name -D query-domain=domain_name
authc_mgmt -u Administrator -p 'NetWorker_Admin_Pass' -e query-ldap-groups -D query-tenant=tenant_name -D query-domain=domain_name
authc_mgmt -u Administrator -p 'NetWorker_Admin_Pass' -e query-ldap-groups-for-user -D query-tenant=tenant_name -D query-domain=domain_name -D user-name=external_username
For Example: 
[root@nsr ~]# authc_mgmt -u Administrator -p '!Password1' -e query-ldap-users -D query-tenant=default -D query-domain=amer.lan
The query returns 47 records.
User Name            Full Dn Name
Administrator        CN=Administrator,CN=Users,dc=amer,dc=lan
...
bkupadmin            CN=Backup Administrator,CN=Users,dc=amer,dc=lan

[root@nsr ~]# authc_mgmt -u Administrator -p '!Password1' -e query-ldap-groups -D query-tenant=default -D query-domain=amer.lan
The query returns 72 records.
Group Name                              Full Dn Name
Administrators                          CN=Administrators,CN=Builtin,dc=amer,dc=lan
...
NetWorker_Admins                        CN=NetWorker_Admins,OU=Groups,dc=amer,dc=lan

[root@nsr ~]# authc_mgmt -u Administrator -p '!Password1' -e query-ldap-groups-for-user -D query-tenant=default -D query-domain=amer.lan -D user-name=bkupadmin
The query returns 1 records.
Group Name       Full Dn Name
NetWorker_Admins CN=NetWorker_Admins,OU=Groups,dc=amer,dc=lan
 
NOTE: On some systems, the authc commands may fail with an "incorrect password" error even when the correct password is given. This is due to the password being specified as visible text with the "-p" option. If you encounter this, remove "-p password" from the commands. You will be prompted to enter the password hidden after running the command.
 

6. When logged into the NMC as the default NetWorker Administrator account, open Setup-->Users and Roles-->NMC Roles. Open the properties of the "Console Application Administrators" role and enter the Distinguished Name  (DN) of a AD/LDAP group (collected in step 5) in the external roles field. For users that require default NetWorker Administrator permissions, specify the AD/LDAP group DN in the "Console Security Administrators" role. For users /groups who do not need administrative rights to the NMC Console, add their full DN in the "Console User" - external roles.

NOTE: By default there is already the DN of the NetWorker server's LOCAL Administrators group, DO NOT delete this.

7. Access permissions must also be applied per NetWorker server configured in the NMC. This can be done one of two ways:
Option 1)
Connect the NetWorker server from the NMC, open Server-->User Groups. Open the properties of the "Application Administrators" role and enter the Distinguished Name  (DN) of a AD/LDAP group (collected in step 5) in the external roles field. For users who require the same level permissions as the default NetWorker Administrator account, you must specify the AD/LDAP group DN in the "Security Administrators" role.

NOTE: By default there is already the DN of the NetWorker server's LOCAL Administrators group, DO NOT delete this.
 
Option 2)
For AD users/groups you want to grant Admin rights to the nsraddadmin command can be run from an administrator or root command prompt on the NetWorker server: 
nsraddadmin -e "OU=group,CN=you,CN=want,CN=to,CN=add,DC=domain,DC=local"
Example:  
nsraddadmin -e "CN=NetWorker_Admins,OU=Groups,dc=amer,dc=lan"

8. Log in to the NMC using your AD/LDAP account (e.g: domain\user):
Example of logging in with an external user
If a tenant other than the default tenant was used you must specify it before the domain, e.g: tenant\domain\user.
The account that is used is shown in the upper right corner. The user can perform actions based on the roles assigned in NetWorker.
Example of how the external user appears once logged in

9. If you want an AD/LDAP group to be able to manage External Authorities, you must perform the following on the NetWorker server.
A. Open an administrative/root command prompt.
B. Using the AD group DN (collected in step 5) you want to grant FULL_CONTROL permission to run: 
authc_config -u Administrator -p NetWorker_Admin_Pass -e add-permission -D permission-name=FULL_CONTROL -D permission-group-dn="AD/LDAP_group_dn"
For Example 
[root@nsr ~]# authc_config -u Administrator -p '!Password1' -e add-permission -D permission-name=FULL_CONTROL -D permission-group-dn="CN=NetWorker_Admins,OU=Groups,dc=amer,dc=lan"
Permission FULL_CONTROL is created successfully.

[root@nsr ~]# authc_config -u Administrator -p '!Password1' -e find-all-permissions
The query returns 2 records.
Permission Id Permission Name Group DN Pattern                Group DN
1             FULL_CONTROL    ^cn=Administrators,cn=Groups.*$
2             FULL_CONTROL                                    CN=NetWorker_Admins,OU=Groups,dc=amer...
[root@nsr ~]#

Additional Information

NetWorker NWUI: How to Configure AD/LDAP from the NetWorker Web User Interface
NetWorker: How To Set up LDAP/AD using authc_config scripts
NetWorker: How To configure LDAPS Authentication.

Affected Products

NetWorker

Products

NetWorker, NetWorker Management Console
Article Properties
Article Number: 000156107
Article Type: How To
Last Modified: 14 Jan 2025
Version:  9
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