Source note · Unified CM security hardening
In Cipher Management, changing All TLS or the SSH cipher, key exchange or MAC fields requires rebooting all cluster nodes. HTTPS TLS needs a Cisco Tomcat restart and SIP TLS needs a Unified CM restart.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- cipher management
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-25
Sources
- Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Cipher Management — Cisco Systems · tier 2 current vendor documentation · Cipher Management > Cipher field restrictions / actions table
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM security hardening: source note cucm-security-hardening-cipher-actions. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-security-hardening-cipher-actions
BibTeX
@misc{warmtransfer-claim-cucm-security-hardening-cipher-actions,
title = {Unified CM security hardening: source note cucm-security-hardening-cipher-actions},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-security-hardening-cipher-actions},
note = {Source note cucm-security-hardening-cipher-actions, checked 2026-09-25}
}