We have three servers, one 5.1, two 6.5. 5.1 is BM server, FTP server
on both 6.5 boxes at 192.168.x.2 and 192.168.x.3. Plan is FTP only for
private side and via VPN.

Is this OK or should I only have one FTP server per tree? At the moment
both are up and running and appear to be OK.