QNAP Club Italia

Ciao a tutti,

sto provando da qualche giorno a configurare il mio QNAP TS-251 per poter effettuare l'accesso tramite ssh quando sono fuori casa.
Ho effettuato la registrazione del DDNS, configurato sul QNAP (tutto ok), configurato il port-forwarding sul mio router TP-LINK W8980 (porta 21,22,80,8080....)
Adesso, se provo a connettermi da casa (all'interno dunque della stessa lan, non ho problemi con ssh...)
Se effettuo l'accesso da fuori invece ricevo l'errore in oggetto:

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my_pc$ ssh -v -l user my_qnap_free_dns.home.dhs.org
OpenSSH_6.9p1, LibreSSL 2.1.7
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 20: Applying options for *
debug1: /etc/ssh/ssh_config line 102: Applying options for *
debug1: Connecting to my_qnap_free_dns.home.dhs.org port 22.
debug1: Connection established.
debug1: identity file /Users/USER/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/USER/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
debug1: match: OpenSSH_4.3 pat OpenSSH_4* compat 0x00000000
debug1: Authenticating to my_qnap_free_dns.home.dhs.org:22 as 'admin'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha1 none
debug1: kex: client->server aes128-ctr hmac-sha1 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<7680<8192) sent
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: ssh-rsa SHA256:fXxxxXXXXxxxXXxxXXXxXXXXXX
debug1: Host 'my_qnap_free_dns.home.dhs.org' is known and matches the RSA host key.
debug1: Found key in /Users/USER/.ssh/known_hosts:1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-with-mic
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/USER/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-with-mic
debug1: Trying private key: /Users/USER/.ssh/id_dsa
debug1: Trying private key: /Users/USER/.ssh/id_ecdsa
debug1: Trying private key: /Users/USER/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey,gssapi-with-mic).
my_pc$

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Tra i vari tentativi ho generato anche la chiave RSA sul QNAP e poi trasferita sul mio pc....ma nulla!

Grazie e a presto,