I decided to follow advice in the CIPT1 book and to change the Host Name / IP Address field located in Cisco Unified CM Administration from the host name to the IP address of the Publisher. Now when I am trying to log in to Cisco Unified CM Administration, I get the "Database communication error" message.
I have only one CUCM server running under VMWare. In the past, I changed the host name to a different host name and had the same problem when trying to log in to Cisco Unified CM Administration. However, then I proceeded to change the host name in the CLI by using the set network hostname command. After I restarted, I was able to log in.
This time, however, I cannot fix the problem. The CLI would not take the set network hostname command with the IP address as an argument.
Additionally, when I try to use the run sql select name,nodeid from ProcessNode, I get the following message:
Failed to get Connection.Connector(NOT CONNECTED:Driver=com.informix.jdbc.IfxDriver;)
Does anyone know how to recover from this problem? I can still use the CLI and I can log to the Disaster Recovery System page as well as to Cisco Unified OS Administration page. I cannot log in to Cisco Unified CM Administration page, Cisco Unified Serviceability page, or Cisco Unified Reporting page. I do not have a Disaster Recovery backup.
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