Bigfix server domain migration

The scenario sees the bigfix server ver. 11.0.2.125 (Windows/MSSQL) installed in domain A to be migrated to domain B. Is there a step by step procedure somewhere? Or someone who has already tackled this activity?

The BigFix Server installed with a Local SQL Server or Remote SQL Server?

If there are Installed together - You want to move them together to a different machine which have a different FQDN name, right?

If they are separated - Do you want to move the BigFix Root Server or the Remote SQL Server?