Hi, my servers were originally setup with public IPs and I am able to sftp from one to the other. However, upon setting them all to use private IP (they are on a private LAN now), I am unable to do sftp. Here's what I'm seeing. Upon hitting yes, it just stucks there until I press Ctrl-C. Any ideas?

[backup@backup ~]$ sftp root@192.168.50.3
Connecting to 192.168.50.3...
The authenticity of host '192.168.50.3 (192.168.50.3)' can't be established.
RSA key fingerprint is 70:eb:9a:b6:0e:dc:fd:f6:1h:2e:df:7d:f1:de:63:37.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.50.3' (RSA) to the list of known hosts.

Does ssh work to connect to the servers instead of sftp? Did you try generating more verbose output o sftp/ssh? Did you check server's log to see if there's an error or something?