I have 3 servers. Call them A, B, and C. B and C are remote and only have A in their hosts.allow.
What I need to do is log into A, and then rsync over SSH the files from B to C. I want to use rsync because many of the files are similarly present on both B and C.
I could try to rsync from B -> A and then from A -> C except I don't have nearly enough disk space on A, so I'd have to find some way of "chunking" the files and I don't see an obvious way of grouping them, and even if I did, I'd have to babysit it too much, with deleting files off A's disk, restarting the process with the next chunk etc.
So is it somehow possible for me to rsync between the two servers? I don't think I will be able to get anyone to change the hosts.allow for me :(