Affected versions: SUSE Linux Enterprise Server 15

📖 ~1 min read

Table of contents
  1. Symptom & Impact
  2. Environment & Reproduction
  3. Root Cause Analysis
  4. Quick Triage
  5. Step-by-Step Diagnosis
  6. Solution – Primary Fix
  7. Solution – Alternative Approaches
  8. Verification & Acceptance Criteria
  9. Rollback Plan
  10. Prevention & Hardening
  11. Related Errors & Cross-Refs
  12. References & Further Reading

Symptom & Impact

Domain users cannot access print or file shares despite valid Kerberos tickets.

Environment & Reproduction

Observed after AD domain migration or smb.conf rewrite on SLES 15 file servers.

Root Cause Analysis

Share or filesystem ACLs do not include the new domain SIDs after migration.

Quick Triage

Validate ticket cache with `klist` and try `smbclient -L localhost -U user`.

Step-by-Step Diagnosis

Check `getfacl` on the share path and inspect `smb.conf` for `valid users` directives.

Illustrative mockup for sles-15 — samba_print-share-acl_terminal
Terminal diagnostics for Samba shares deny domain users access on SLES 15 — Illustrative mockup — Progressive Robot

Solution – Primary Fix

Refresh ACLs with `setfacl` or `sambacl` and update `valid users` to use SID-based references.

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Illustrative mockup for sles-15 — samba_print-share-acl_logs
Logs and evidence for Samba shares deny domain users access on SLES 15 — Illustrative mockup — Progressive Robot

Solution – Alternative Approaches

Use ID mapping config to keep UIDs/GIDs stable across the domain.

Verification & Acceptance Criteria

Domain users mount, list, and write to expected shares.

Rollback Plan

Restore previous ACL state from backup if access becomes too permissive.

Prevention & Hardening

Capture share ACL inventory and review during AD migrations.

Pairs with `NT_STATUS_ACCESS_DENIED` events in samba logs.

Related tutorial: View the step-by-step tutorial for sles-15.

View all sles-15 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

SUSE Samba and Active Directory integration documentation.

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