I've an application that needs a secure automatic login
from an application program, between particular accounts
on particular machines.
I know this used to work (a few years ago!) but I
am having difficulty this time around getting it going.
I'm using a public key for the connection, with null
password given when asked by the ssh-keygen.
The destination machine accepts that the publickey
is valid but asks for a passphrase nonetheless. It
doesn't accept a return for null password either, it
falls back on normal password log in.
As I said, I've not done this particular set up in,
oh, 6 years, so I would not be surprised if there
were changes in the debian defaults for sshd, pamd,
the way ssh handles things etc, etc.
A suggestion or three would be appreciated.