I have a multi-serveur configuration : server A: websites, emails and interface (version 3.0) server B and C : DNS (version 3.1) I have to migrate server A on a new hardware (from physical to virtual) to version 3.1. I use the migration tool to do that. The migration is nearly correct, except DNS informations (dns_soa, dns_rr). I have a look to the migration log file : only records on master server are taken ("SELECT * FROM `dns_soa` WHERE `server_id` IN ('0','1')") ; server_id for B and C are respectivly 2 and 10 for me. In the same manner, dns_slave and dns_template ares totaly ignored in the tool.