Append these DNS suffixes in order vs the other option Append primary and connection specifi DNS suffices. What is the difference and what is the best option that you would recommend to setup? I see some servers have one option and the other servers have the other option selected. There is no consistency. Please advise on the best approach. Also, is this something we can apply through GPO? We are migrating from source to target domain and in any case need to get rid of source domain suffix if it is there under "Append these suffixes in order". Or should we not only get rid of the old domain suffix but select the option "Append primary and connection specific DNS suffix?