Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Operating System and Security Hardening

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/security/15_0/cucm_b_security-guide-release-15/cucm_m_os-hardening.html

Published

2026-09-22

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco copyright; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Unified CM has three audit logs: the Linux auditd log, the Unified CM application audit log and the Informix database audit log. in context
• Unified CM is a closed, turnkey appliance. Native OS interfaces are restricted, and access is only through the Cisco-provided GUI, CLI or API. in context
• SELinux enforcing mode and the IPTables host firewall are both enabled by default on Unified CM. Firewall rules can be listed with utils firewall ipv4 list and utils firewall ipv6 list. in context

Cite this source record

APA

WarmTransfer. (2026, September 22). Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Operating System and Security Hardening. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cucm-sec15-os-hardening

BibTeX

@misc{warmtransfer-cisco-cucm-sec15-os-hardening,
  title  = {Security Guide for Cisco Unified Communications Manager, Release 15 and SUs - Operating System and Security Hardening},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cucm-sec15-os-hardening},
  note   = {Cisco Systems, accessed 2026-09-25}
}