Source note · Unified CM LDAP directory sync and authentication
New Active Directory deployments on Windows Server 2025 and later require LDAP signing by default, while Windows Server 2019 and earlier leave signing optional by default.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Active Directory Domain Services
- Subsystem
- LDAP signing
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Windows Server 2019 and earlier; Windows Server 2025 and later
- Checked
- 2026-09-25
Sources
- LDAP signing for Active Directory Domain Services on Windows Server — Microsoft · tier 2 current vendor documentation · Default security behavior > Windows Server 2025 and later; Windows Server 2019 and earlier
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM LDAP directory sync and authentication: source note cucm-ldap-integration-ws2025-signing-default. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ldap-integration-ws2025-signing-default
BibTeX
@misc{warmtransfer-claim-cucm-ldap-integration-ws2025-signing-default,
title = {Unified CM LDAP directory sync and authentication: source note cucm-ldap-integration-ws2025-signing-default},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-ldap-integration-ws2025-signing-default},
note = {Source note cucm-ldap-integration-ws2025-signing-default, checked 2026-09-25}
}