Bug? between OpenSSH 6.4p1 and 6.5p1(also 6.6p1)

[Pieter Bowman]

>> ...
>> The ssh -vvv output might be of a little interest. I'm particularly
>> curious as to whether you get the messages that you quoted with each
>> keysign request or just the one for the ed25519 key.
>> 
>> The behavour sounds like there is a version mismatch which is causing it
>> to choke on the ed25519 key. You indicate that the correct ssh-keysign
>> is being invoked, or at least the right path is used. Try running
>> strings on the executable and grep for ed25519.
>> 
>> Were yyou deliberately failing the two password prompts, or is that
>> anouther aspect of the problem?
>> ...

The two password prompts are some aspect of the problem as the first
one doesn't pause to wait for any input.

Here is the output of "ssh -vvv" from both ssh 6.4p1 and 6.6p1 talking
to the same sshd (6.5p1) and using the same ssh-keysign (6.6p1).  I
know I'm mixing things a bit, but the behavior is the same no matter
which sshd is being used.  I replaced hostname, IP address and home
directory paths.

-----------------------------OpenSSH6.4p1-----------------------------
OpenSSH_6.4, OpenSSL 1.0.1e 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to <HOST> [<IP>] port 22.
debug1: Connection established.
debug1: could not open key file '/etc/ssh/ssh_host_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied
debug1: identity file <HOME>/.ssh/id_rsa type -1
debug1: identity file <HOME>/.ssh/id_rsa-cert type -1
debug1: identity file <HOME>/.ssh/id_dsa type -1
debug1: identity file <HOME>/.ssh/id_dsa-cert type -1
debug1: identity file <HOME>/.ssh/id_ecdsa type -1
debug1: identity file <HOME>/.ssh/id_ecdsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.5
debug1: match: OpenSSH_6.5 pat OpenSSH*
debug2: fd 3 setting O_NONBLOCK
debug3: load_hostkeys: loading entries for host "<HOST>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ssh-dss-cert-v00 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ssh-dss-cert-v00 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss,
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: kex_parse_kexinit: curve25519-sha256 at libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: mac_setup: found hmac-md5-etm at openssh.com
debug1: kex: server->client aes128-ctr hmac-md5-etm at openssh.com none
debug2: mac_setup: found hmac-md5-etm at openssh.com
debug1: kex: client->server aes128-ctr hmac-md5-etm at openssh.com none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA a6:9e:89:40:33:63:d6:6f:86:ae:58:02:2a:32:dd:ce
debug3: load_hostkeys: loading entries for host "<HOST>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug3: load_hostkeys: loading entries for host "<IP>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug1: Host '<HOST>' is known and matches the ECDSA host key.
debug1: Found key in /etc/ssh/ssh_known_hosts:417
debug1: ssh_ecdsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: <HOME>/.ssh/id_rsa ((nil)),
debug2: key: <HOME>/.ssh/id_dsa ((nil)),
debug2: key: <HOME>/.ssh/id_ecdsa ((nil)),
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug3: start over, passed a different list publickey,password,keyboard-interactive,hostbased
debug3: preferred hostbased,publickey,keyboard-interactive,password
debug3: authmethod_lookup hostbased
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled hostbased
debug1: Next authentication method: hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug1: No more client hostkeys for hostbased authentication.
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: <HOME>/.ssh/id_rsa
debug3: no such identity: <HOME>/.ssh/id_rsa: No such file or directory
debug1: Trying private key: <HOME>/.ssh/id_dsa
debug3: no such identity: <HOME>/.ssh/id_dsa: No such file or directory
debug1: Trying private key: <HOME>/.ssh/id_ecdsa
debug3: no such identity: <HOME>/.ssh/id_ecdsa: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug3: userauth_kbdint: disable: no info_req_seen
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: 
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
-----------------------------OpenSSH6.4p1-----------------------------

-----------------------------OpenSSH6.6p1-----------------------------
OpenSSH_6.6, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to <HOST> [<IP>] port 22.
debug1: Connection established.
debug1: could not open key file '/etc/ssh/ssh_host_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ed25519_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied
debug1: could not open key file '/etc/ssh/ssh_host_ed25519_key': Permission denied
debug1: identity file <HOME>/.ssh/id_rsa type -1
debug1: identity file <HOME>/.ssh/id_rsa-cert type -1
debug1: identity file <HOME>/.ssh/id_dsa type -1
debug1: identity file <HOME>/.ssh/id_dsa-cert type -1
debug1: identity file <HOME>/.ssh/id_ecdsa type -1
debug1: identity file <HOME>/.ssh/id_ecdsa-cert type -1
debug1: identity file <HOME>/.ssh/id_ed25519 type -1
debug1: identity file <HOME>/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.5
debug1: match: OpenSSH_6.5 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug3: load_hostkeys: loading entries for host "<HOST>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ssh-dss-cert-v00 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: curve25519-sha256 at libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01 at openssh.com,ecdsa-sha2-nistp384-cert-v01 at openssh.com,ecdsa-sha2-nistp521-cert-v01 at openssh.com,ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ssh-dss-cert-v00 at openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss,ssh-ed25519-cert-v01 at openssh.com,ssh-ed25519
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: kex_parse_kexinit: curve25519-sha256 at libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm at openssh.com,aes256-gcm at openssh.com,chacha20-poly1305 at openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5-etm at openssh.com,hmac-sha1-etm at openssh.com,umac-64-etm at openssh.com,umac-128-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512-etm at openssh.com,hmac-ripemd160-etm at openssh.com,hmac-sha1-96-etm at openssh.com,hmac-md5-96-etm at openssh.com,hmac-md5,hmac-sha1,umac-64 at openssh.com,umac-128 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: mac_setup: setup hmac-md5-etm at openssh.com
debug1: kex: server->client aes128-ctr hmac-md5-etm at openssh.com none
debug2: mac_setup: setup hmac-md5-etm at openssh.com
debug1: kex: client->server aes128-ctr hmac-md5-etm at openssh.com none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA a6:9e:89:40:33:63:d6:6f:86:ae:58:02:2a:32:dd:ce
debug3: load_hostkeys: loading entries for host "<HOST>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug3: load_hostkeys: loading entries for host "<IP>" from file "/etc/ssh/ssh_known_hosts"
debug3: load_hostkeys: found key type DSA in file /etc/ssh/ssh_known_hosts:416
debug3: load_hostkeys: found key type ECDSA in file /etc/ssh/ssh_known_hosts:417
debug3: load_hostkeys: found key type RSA in file /etc/ssh/ssh_known_hosts:418
debug3: load_hostkeys: loaded 3 keys
debug1: Host '<HOST>' is known and matches the ECDSA host key.
debug1: Found key in /etc/ssh/ssh_known_hosts:417
debug1: ssh_ecdsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: <HOME>/.ssh/id_rsa ((nil)),
debug2: key: <HOME>/.ssh/id_dsa ((nil)),
debug2: key: <HOME>/.ssh/id_ecdsa ((nil)),
debug2: key: <HOME>/.ssh/id_ed25519 ((nil)),
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug3: start over, passed a different list publickey,password,keyboard-interactive,hostbased
debug3: preferred hostbased,publickey,keyboard-interactive,password
debug3: authmethod_lookup hostbased
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled hostbased
debug1: Next authentication method: hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
debug2: we sent a hostbased packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug2: userauth_hostbased: chost <HOST>.
debug2: ssh_keysign called
debug3: ssh_msg_send: type 2
debug3: ssh_msg_recv entering
debug1: permanently_drop_suid: 888
no matching hostkey found
ssh_keysign: no reply
key_sign failed
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: <HOME>/.ssh/id_rsa
debug3: no such identity: <HOME>/.ssh/id_rsa: No such file or directory
debug1: Trying private key: <HOME>/.ssh/id_dsa
debug3: no such identity: <HOME>/.ssh/id_dsa: No such file or directory
debug1: Trying private key: <HOME>/.ssh/id_ecdsa
debug3: no such identity: <HOME>/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: <HOME>/.ssh/id_ed25519
debug3: no such identity: <HOME>/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
debug3: userauth_kbdint: disable: no info_req_seen
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: 
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
debug3: packet_send2: adding 64 (len 47 padlen 17 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive,hostbased
Permission denied, please try again.
-----------------------------OpenSSH6.6p1-----------------------------