BACKEND_ERROR status

[probert-mtv]

Hi,

I'm trying to configure a local KSM and Val server, so that we can authenticate by SSH even if outgoing trafic is busted (routing issues or otherwise).

Now, the PAM module is asking for the password everytime, and when I run locally the HTTP request that ykclient does, I get:

h=qzD+X3hDDm6VJ7yT87TRmqwCKzQ=
t=2018-09-26T14:33:51Z0013
status=BACKEND_ERROR

ykval-queue is running, and no errors in Apache's log. I did enable debugging for the PAM module, and nothing is logged.

What could the culprit?