OpenSSH 6.8p1 ne peut pas utiliser plusieurs AuthenticationMethods

J'utilise openssh 6.8p1 et j'essaie de configurer plusieurs méthodes d'authentification.

Il fonctionne avec seulement

AuthenticationMethods "publickey,password" (méthode d'authentification)

mais pas avec

AuthenticationMethods "publickey,password clavier-interactif:pam"

Cependant, sshd ne démarre pas. Il me donne le message d'erreur :

Méthode d'authentification inconnue "password keyboard-interactive" dans la liste

Voici la sortie de /usr/sbin/sshd -ddd

debug2: load_server_config: filename /etc/ssh/sshd_config
debug2: load_server_config: done config len = 667
debug2: parse_server_config: config /etc/ssh/sshd_config len 667
debug3: /etc/ssh/sshd_config:1 setting Protocol 2
debug3: /etc/ssh/sshd_config:2 setting SyslogFacility AUTHPRIV
debug3: /etc/ssh/sshd_config:3 setting PermitRootLogin no
debug3: /etc/ssh/sshd_config:5 setting AuthorizedKeysFile /etc/ssh/authorized_keys 
debug3: /etc/ssh/sshd_config:6 setting RevokedKeys /etc/ssh/revoked_keys
debug3: /etc/ssh/sshd_config:8 setting AuthenticationMethods "publickey,password keyboard-interactive:pam,password"
Unknown authentication method "password keyboard-interactive" in list
/etc/ssh/sshd_config line 8: invalid authentication method list.

et voici ma configuration sshd

Protocol 2
SyslogFacility AUTHPRIV
PermitRootLogin no

AuthorizedKeysFile      /etc/ssh/authorized_keys
RevokedKeys             /etc/ssh/revoked_keys
AuthenticationMethods       "publickey,password keyboard-interactive:pam"

PasswordAuthentication yes
ChallengeResponseAuthentication yes
GSSAPIAuthentication yes
GSSAPICleanupCredentials yes
UsePAM yes

AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS

X11Forwarding yes
Banner /etc/motd
Subsystem       sftp    /usr/libexec/openssh/sftp-server