From releases 10.5(2)SU2 and 9.1(2)SU3, Unified CM by default checks the FQDN configured in LDAP Server Information against the Common Name of the LDAP server certificate.

Checked 2026-10-02

By default, after versions 10.5(2)SU2 and 9.1(2)SU3 FQDN configured in LDAP Server Information are checked against the Common Name of the certificate.
Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
LDAPS certificate validation
Deployment
on-premises
Region
not restricted
Release range
10.5(2)SU2 and 9.1(2)SU3 onward
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting LDAP directory sync failures in Unified CM: source note cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check

BibTeX

@misc{warmtransfer-claim-cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check,
  title  = {Troubleshooting LDAP directory sync failures in Unified CM: source note cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check},
  note   = {Source note cucm-ldap-sync-troubleshooting-ldaps-fqdn-cn-check, checked 2026-10-02}
}

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