Mac OS X 10.6 and later changes the default of the ssh password authentication setting to no.
This still allows keyboard interactive login which ssh uses, so it is still possible to ssh to the server. However, this default does not allow Aspera to connect to the server since Aspera uses ssh password authentication.
Open your SSH Server configuration file with a text editor:
To allow public key authentication, set PubkeyAuthentication yes. To allow password authentication, set
PasswordAuthentication yes. Here is a configuration example:
When modified, restart SSH to apply new settings. You can do this by going to your System Preferences and clicking on the Sharing button. Uncheck and then re-check Remote Login from the left panel.