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[Résolu]SSH / Permission denied, connection closed


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Hello à tous,

 

je rencontre un petit souci sur mon nouveau (d'occasion) Synology.

Je suis en plein transfert de l'ancien vers le nouveau.

Une fois DSM 6 à jour, je recrée mon compte utilisateur, et là je tente de migrer mes mails de Mail Server (c'est ce que j'avais sur l'ancien) vers Mail plus Server en suivant le tuto idoine de Synology (https://www.synology.com/fr-fr/knowledgebase/DSM/tutorial/General/How_to_migrate_Synology_Mail_Server_to_MailPlus_Server#t3). Pour cela, je dois utliser SSH au cours du processus.

C'est là que le bât blesse, puisque je n'arrive pas à me connecter au Syno via SSH depuis mon PC...

Voici ce que me donne le retour de ssh -v :

	sylvain@sylvain-fixe-linux:~$ ssh -v sylvain@10.0.0.22
OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 10.0.0.22 [10.0.0.22] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.8p1-hpn14v6
debug1: match: OpenSSH_6.8p1-hpn14v6 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 10.0.0.22:22 as 'sylvain'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:6bfta8nN5sncC3maI1Oceo4C2MbnXLCSkyH5jW4Viy4
debug1: Host '10.0.0.22' is known and matches the ECDSA host key.
debug1: Found key in /home/sylvain/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/sylvain/.ssh/id_rsa
debug1: Trying private key: /home/sylvain/.ssh/id_dsa
debug1: Trying private key: /home/sylvain/.ssh/id_ecdsa
debug1: Trying private key: /home/sylvain/.ssh/id_ed25519
debug1: Next authentication method: password
sylvain@10.0.0.22's password:
debug1: Authentication succeeded (password).
Authenticated to 10.0.0.22 ([10.0.0.22]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.UTF-8
Permission denied, please try again.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Connection to 10.0.0.22 closed.
Transferred: sent 2152, received 2492 bytes, in 0.0 seconds
Bytes per second: sent 48765.2, received 56469.7
debug1: Exit status 1

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il y a 37 minutes, Fenrir a dit :

Vérifie que les connexion ssh sont bien autorisées (à activer dans le panneau de conf) et que ton compte (sylvain) fait bien parti du groupe admin.

Yes, c'est bon, c'est autorisé.

Curieusement, lorsque je me connecte via mon nom de domaine et pas l'IP, ça marche. Voici le log :

	sylvain@sylvain-fixe-linux:~$ ssh -v sylvain@****team.fr
OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to ****team.fr [88.125.**.***] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.8p1-hpn14v6
debug1: match: OpenSSH_6.8p1-hpn14v6 pat OpenSSH* compat 0x04000000
debug1: Authenticating to ****team.fr:22 as 'sylvain'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:6bfta8nN5sncC3maI1Oceo4C2MbnXLCSkyH5jW4Viy4
debug1: Host '****team.fr' is known and matches the ECDSA host key.
debug1: Found key in /home/sylvain/.ssh/known_hosts:2
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/sylvain/.ssh/id_rsa
debug1: Trying private key: /home/sylvain/.ssh/id_dsa
debug1: Trying private key: /home/sylvain/.ssh/id_ecdsa
debug1: Trying private key: /home/sylvain/.ssh/id_ed25519
debug1: Next authentication method: password
sylvain@****team.fr's password:
debug1: Authentication succeeded (password).
Authenticated to ****team.fr ([88.125.***.***).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.UTF-8

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Petit retour rapide.

J'ai enlevé toutes les règles sur mon routeur, et du coup j'ai récupéré mon accès SSH :

	sylvain@sylvain-710-linux:~$ ssh -v 10.0.0.22
OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 10.0.0.22 [10.0.0.22] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/sylvain/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.8p1-hpn14v6
debug1: match: OpenSSH_6.8p1-hpn14v6 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 10.0.0.22:22 as 'sylvain'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:6bfta8nN5sncC3maI1Oceo4C2MbnXLCSkyH5jW4Viy4
debug1: Host '10.0.0.22' is known and matches the ECDSA host key.
debug1: Found key in /home/sylvain/.ssh/known_hosts:3
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/sylvain/.ssh/id_rsa
debug1: Trying private key: /home/sylvain/.ssh/id_dsa
debug1: Trying private key: /home/sylvain/.ssh/id_ecdsa
debug1: Trying private key: /home/sylvain/.ssh/id_ed25519
debug1: Next authentication method: password
sylvain@10.0.0.22's password:
debug1: Authentication succeeded (password).
Authenticated to 10.0.0.22 ([10.0.0.22]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.UTF-8
sylvain@Protector2:~$

C'était bête comme chou en fait.

Je ne sais pas si c'est dû au configurateur de routeur du Syno, ou alors au fait que le même type de règles affectait déjà mon ancien Syno.

Merci de ton aide en tout cas !!

Modifié par sylvone
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