Security in replicated databases, with the exception of file passwords, works just the same as non-replicated databases.
The security file, System.mdw, can't be replicated. Therefore, you must either re-create the exact same user/PID in each System.mdw; or re-create the exact same user group/PID in each System.mdw, assign permissions to the group, and make local users join this group.
You can specify a security file for the Replication Manager by using command-line parameters, in a manner similar to Access:
REPLMAN.EXE /WRKGRP path
path is the path to System.mdw to be used to open the secured database.
You can't use simple file password security with replication. If you have a non-replicated database that ...