We need to upload a security banner for our customer on the Unity Connection Servers.
Following the directions in the help file to upload a text file in the Cisco Unified Operating System Administration page, under Software upgrades / Customized Logon Message, I get the following errors when trying to upload a text file. The text file is named loginWarning.txt.
You didn't mention which version, but this is a known defect that was introduced in 8.5 and may affect UCM as well as Unity Connection. We have experienced it in CUC 8.6. The defect is unresolved but can be manually fixed with TAC's assistance via root access.