Configure Git with SSH for Phabricator

I'm trying to configure SSH for Phabricator to get git running. I've followed this manual but when I call echo {} | ssh git@phabricator.mydomain.com conduit conduit.ping I always get an empty result or Permission denied (publickey,keyboard-interactive)..

/etc/ssh-phabricator/sshd_config:

AuthorizedKeysCommand /usr/libexec/ssh-phabricator-hook
AuthorizedKeysCommandUser git

Port 22
Protocol 2
PermitRootLogin no
AllowAgentForwarding no
AllowTcpForwarding no
PrintMotd no
PrintLastLog no
PasswordAuthentication no
AuthorizedKeysFile none

/etc/passwd:

phd:x:999:999::/var/tmp/phd:/bin/false
git:x:1005:1005::/home/git:/bin/bash

/etc/shadow:

phd:!:16135::::::
git:NP:16135:0:99999:7:::

/etc/sudoers:

git ALL=(phd) SETENV: NOPASSWD: /usr/bin/git-upload-pack, /usr/bin/git-receive-pack, /bin/false

~/.ssh/config:

Host phabricator.mydomain.com
    HostName phabricator.mydomain.com
    Port 22
    IdentityFile /c/Users/.../.ssh/id_rsa_phabricator
    PreferredAuthentications publickey
    User git

UPDATE

The reasons for my problems were:

I didn't use the SSH key with the client.
I didn't ensure that the git user has a shell.

Solution

Your ssh hook is working properly - first, you should ensure that the git ssh user is able to ssh to the normal ssh daemon - this will ensure that you can login with this user.

More than likely you have a bad home directory or bad shell as stated in the comments.

If all of that is working fine, make sure you have a ssh key uploaded to your profile and that you are using this key to connect with.