I recently ran into a scenario that wasn’t really covered in Cisco’s Changing IP Address and Hostname for Cisco Unified Communications Manager documentation. We had already had our CUCM hostnames defined by hostname, but they were not using Fully Qualified Domain Name (FQDN) hostnames. In this post I will cover the steps I used to just add the domain name to my node definitions as the process is much less complicated when compared to the full rename procedure.
Changing CUCM hostnames to FQDN hostnames
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