Sqlserver two-way synchronization of multiple databases

When using the sqlserver replication subscription databases can achieve two-way data synchronization, data released subscriber data synchronization server, but when the subscriber data cud operation, the publisher will not be cud data synchronization, how can we do the database Two-way sync? Wang has experienced big brother passing rest a while, pointing younger two, grateful try not two-way, two-way can be used if a peer and a merger, but fortunately that is incremented ID will disrupt, then his peer increment ID are not synchronized

Try not two-way, two-way can be used if a peer and a merger, but fortunately that is incremented ID will be disrupted, and so on, then he will not be synchronized increment ID

Here's how the process account to fill?
Example: domain \ account
domain where the computer is the host name or service name sqlserver (@@ serverName) or other?
Here is the account of the logged-on user computers or other?
Giving a hurry! ! ! Gangster look younger pointing or two, grateful