[cisco-voip] DNS and LDAP Domain name change - current process node is IP

[Nick Britt]

A customer has had a domain name, this includes the DNS and the active
directory integration. I am trying to pull together the necessary steps for
each application.

Below is what I have deduced from the documentation so far

*Change Domain name CUCM, Pub and Sub*

The CUCM processNode name is the IP address (System - > Server) changing
the domain name will have no effect on the CTL/ITL files as phones only
reference the IP currently.
Remove each server from PLM and add back in post-change
Security certs will need to be re-signed by the root CA
Each domain name and DNS change will need to be completed independently and
db replication status to be checked before moving onto subscriber.
Current Active directory authentication and LDAP authentication will be
moved from one server to another. The usernames are the same between the
the Active Directory domains so the device associations should remain when
the LDAP integration is change between one AD domain to another.

Change Domain name IMP, Pub and Sub

Security certs will need to be re-signed by the root CA
Each domain name and DNS change will need to be completed independently and
db replication status to be checked before moving onto subscriber.

*CUC*
Security certs will need to be re-signed by the root CA
Each domain name and DNS change will need to be completed independently and
db replication status to be checked before moving onto subscriber.
LDAP is used to manually "import" user name/extension then the users are
added manually
SMTP is used for voicemail to mail integration instead of unified messaging
so no changes needed as the mail server details remains the same.

I've also seen reports of mgcp sccp gw's unregistering if relying on DNS
but the IP is used for each MGCP registration.

I would appreciate a heads up if you have encountered any issues with
similar changes.

-- 
- Nick
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