Push a Workflow.nsf from one server to another

Hi,I want to push my workflow.nsf from Server A that already functional into Server B in different LAN, so that user in the location of Server B just access this nsf from Server B, not to Server A. I try to push this workflow by Domino Administrator Server Console from Server A by command : push serverA workflow.nsf, but there was error message : Unable to replicate to serverA unable to find path server…

Can I just copy and paste to Server B…and what should I do so, If there is modification in nsf on Server A, it will repliacate to Server B, and vice versa…

thank you