How to make an entry into the domain and replication of an additional controller via the Internet, but without a VPN?

Question

Active Directory

There is a corporate network with a domain.
There is a new server in another city in a branch of the company.
Task:
1. Enter a new server into the domain as a second (additional) controller.
2. Set up replication between servers.
Everything must be done over the Internet, but without connecting networks through a VPN.
How to do it?
PS: everywhere windows server 2008 r2 sp1

Answer 1

Use the offline domain join method:
http://technet.microsoft.com/en-us/library/offline-domain-join-djoin-step-by-step (v=ws.10).aspx
Run on the domain controller:
djoin /provision /domain /machine /savefile blob.txt /reuse
1. Copy the blob.txt file to the client machine.
2. On the client computer, open an elevated command prompt and enter the following command to request a domain connection:
3. djoin /requestODJ /loadfile blob.txt /windowspath %SystemRoot% /localos
4. Restart the client computer. The computer will be joined to the domain.