Probably obvious, but being old it took me a while to figure this out 
I tried to transfer an account from one server to another but the connectioned timed out, this is because although CSF configures your SSH port when installed, it only puts the SSH port in allowed TCP_IN So i had to add it to TCP_Out to make the account transfer work ( or even just ssh between the two servers. )
I tried to transfer an account from one server to another but the connectioned timed out, this is because although CSF configures your SSH port when installed, it only puts the SSH port in allowed TCP_IN So i had to add it to TCP_Out to make the account transfer work ( or even just ssh between the two servers. )