/mcpPurpose Command or Action Note This step is not applicable for Cisco NFVIS-for-UC and Nutanix AHV. This configuration is necessary if your network topology has a public IP address configured Ensure that you configure the Trusted List of Hosts in HTTP Referer/Host Header and Step 14 for external interfaces along with private IP add the public IP address or DNS alias in the address for the individual nodes in the cluster. Cisco Unified CM Administration Enterprise Parameters page. Unified CM will now validate the IP address or hostname present in the Host header with the servers configured in the Unified CM cluster first before allowing access to Unified CM. You must also configure the DNS alias used to access the Unified CM under the Trusted List of Hosts configuration. For example, if your server is cm1.example.local, and you use phone.example.local to access the server, you must add phone.example.local to the Trusted List of Hosts configuration. From the private network using a private IP address, navigate to the Cisco Unified CM Administration user interface and select System > Enterprise Parameters to configure the external IP addresses or DNS alias used. You must restart the Cisco Tomcat service after performing this activity for all the web pages to load correctly. Reset Application User Passwords The install process sets all Application User passwords to the same default Application User password that you entered during installation. We recommend that you reset all these passwords post installation. Procedure Step 1 From Cisco Unified CM Administration, choose User Management > Application User. Step 2 Click Find. Step 3 Click an application user. The details of the application user appear in the Application User Configuration window. Step 4 Enter the new password in both the Password and Confirm Password fields. Step 5 Click Save. Step 6 Repeat this procedure for each application user. Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 83 Postinstallation Tasks Reset Application User Passwords