Moving SQL and File Server from One Domain to Another

In my environment there is a internal network and DMZ. The DMZ has a small isolated domain in place and setup long before I started here. Anyway this domain is slowly going to be going away and I would like to move the SQL and filer server behind out firewall.

The internal and external domain are separate and no trust exist nor do I want to create one.  I going to do the following.

1) Document all services in use on the SQL server
2) Document all folder permissions on the file server using icacls
3) discjoing the servers from the domain and add it to the internal network.
4) setup the new service account for sql to use
5) Do the same process with the file server but use icacis to popules the security permissions with user from the internal domain.

This is a high level overview but is it valid?
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
It is valid, however, ensure to have local\administrators with sysadmin privileges on the SQL server.  On the file server, ensure to have a local account added to all the shares and NTFS rights to ensure you have access.  After the move, ensure to add users/groups from the new domain and remove the old domain accounts.

Prior to doing any of these, ensure to at least create a system state backup (preferably full server backup of each server) so that you could revert back to original configuration if needed.

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compdigit44Author Commented:
Thank you for confirming my base game plan :-)
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