A Samba server is joined to an AD domain. The administrator is troubleshooting an issue where 'wbinfo -u' lists domain users, but 'getent passwd' does not. The nsswitch.conf has 'passwd: files winbind'. What is the most likely cause?

The Samba server is not using security = ads.

The winbind module is not listed in /etc/nsswitch.conf for the passwd database.

The Winbind service is not running.

The winbind NSS library is not installed or is not being found by the system.

What is the purpose of an ID mapping backend in Winbind?

To map Unix UIDs to Windows SIDs for authentication

To store user passwords in a secure database

To map Windows SIDs to Unix UIDs and GIDs

To synchronize time between the Unix system and the domain controller

A Samba server is integrated with an AD domain. The administrator is troubleshooting an issue where domain users can authenticate via SMB, but they cannot access files owned by a specific domain group. The group appears in 'wbinfo -g', but 'getent group' does not show it. The smb.conf has 'idmap config * : backend = rid' and 'idmap config * : range = 10000-20000'. What is the most likely cause?

The group's SID has a RID that maps to a UID outside the configured range.

The group is a local group, not a domain group.

The nsswitch.conf is missing 'winbind' for the group entry.

LPIC-3 Mixed Environments

Domain 5Objective 2

394.2 Authentication, Authorization and Winbind (weight: 5) LPIC-3-MIXED-ENVIRONMENTS Practice Questions (Page 5)

Part of the Topic 394: Samba User and Group Management domain, which makes up ~10% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 2–3 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

8concepts

Questions 21–25

21expert · hard
A Samba server is joined to an AD domain. The administrator is troubleshooting an issue where 'wbinfo -u' lists domain users, but 'getent passwd' does not. The nsswitch.conf has 'passwd: files winbind'. What is the most likely cause?
Select an answer first
22foundation · easy
Which command can be used to verify that the system can resolve a domain user through NSS, for example, to check if a domain user appears as a local user?
Select an answer first
23foundation · easy
What is the purpose of an ID mapping backend in Winbind?
Select an answer first
24foundation · easy
Which file must be modified to enable the system to resolve domain users and groups through Winbind using the Name Service Switch (NSS)?
Select an answer first
25expert · hard
A Samba server is integrated with an AD domain. The administrator is troubleshooting an issue where domain users can authenticate via SMB, but they cannot access files owned by a specific domain group. The group appears in 'wbinfo -g', but 'getent group' does not show it. The smb.conf has 'idmap config * : backend = rid' and 'idmap config * : range = 10000-20000'. What is the most likely cause?
Select an answer first

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394.2 Authentication, Authorization and Winbind (weight: 5) LPIC-3-MIXED-ENVIRONMENTS Practice Questions (Page 5)

Questions 21–25

A Samba server is joined to an AD domain. The administrator is troubleshooting an issue where 'wbinfo -u' lists domain users, but 'getent passwd' does not. The nsswitch.conf has 'passwd: files winbind'. What is the most likely cause?

Which command can be used to verify that the system can resolve a domain user through NSS, for example, to check if a domain user appears as a local user?

What is the purpose of an ID mapping backend in Winbind?

Which file must be modified to enable the system to resolve domain users and groups through Winbind using the Name Service Switch (NSS)?

Keep studying — Topic 394: Samba User and Group Management