Re: connection ssh

To: debian-user-french@lists.debian.org
Subject: Re: connection ssh
From: claude <cthomassin2002@free.fr>
Date: Fri, 26 Dec 2008 21:05:23 +0100
Message-id: <[🔎] 49553903.1070607@free.fr>
In-reply-to: <[🔎] 20081226153222.GQ17090@prunille.vinc17.org>
References: <[🔎] 4953AAFE.6000502@free.fr> <[🔎] 20081226153222.GQ17090@prunille.vinc17.org>

>

Vincent Lefevre a écrit :

> Tu peux essayer des trucs du style: "ssh localhost" sur le serveur
> (si tu y as accès), et voir si ça fonctionne.

un ssh localhost ou 127.0.0.1 ou <ip_de_la_machine> ne fonctionne pas
non plus en local.

>> Bien sûr, la machine client peut se connecter sans problème à n'importe
>> quelle autre machine de mon réseau.
> 
> Même config?

Oui. D'ailleurs, j'ai essayé de plusieurs PC (debian Sid pour tous),
mais pas de clés RSA pour les autres PC. Ce qui, apparemment ne change
pas grand-chose puisque j'ai effacé les clés sur le serveur et le client
sans succès.

Entre-temps, comme il s'agit d'un vserver, j'ai procédé à une
réinstallation [1] : même punition (à peu de choses près, j'ai recréé
des clés RSA pour voir et décommenté à peu près toutes les options de
sshd_config qui pourraient bloquer la connexion). C'est à n'y rien
comprendre :(

[1] Par réinstallation, j'entends : installation d'un vserver avec la
même configuration que l'autre (donc install de base + openssh-server)
et modification des liens pour faire pointer ~vdirbase et compagnie vers
la nouvelle installation.

voici ce que donne maintenant une tentative de connexion :

ssh 192.168.0.98 -vv
OpenSSH_5.1p1 Debian-3, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 192.168.0.98 [192.168.0.98] port 22.
debug1: Connection established.
debug1: identity file /home/claude/.ssh/identity type -1
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug2: key_type_from_name: unknown key type '-----END'
debug1: identity file /home/claude/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/claude/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version
OpenSSH_5.1p1 Debian-4
debug1: match: OpenSSH_5.1p1 Debian-4 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-3
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit:
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
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@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:
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
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit: none,zlib@openssh.com
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
debug1: kex: server->client aes128-cbc hmac-md5 none
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 119/256
debug2: bits set: 508/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '192.168.0.98' is known and matches the RSA host key.
debug1: Found key in /home/claude/.ssh/known_hosts:1
debug2: bits set: 524/1024
debug1: ssh_rsa_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: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/claude/.ssh/identity ((nil))
debug2: key: /home/claude/.ssh/id_rsa (0x7f2538198920)
debug2: key: /home/claude/.ssh/id_dsa ((nil))
debug1: Authentications that can continue:
publickey,password,keyboard-interactive,hostbased
debug1: Next authentication method: publickey
debug1: Trying private key: /home/claude/.ssh/identity
debug1: Offering public key: /home/claude/.ssh/id_rsa
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue:
publickey,password,keyboard-interactive,hostbased
debug1: Trying private key: /home/claude/.ssh/id_dsa
debug2: we did not send a packet, disable method
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 0
debug1: Authentication succeeded (keyboard-interactive).
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: channel 0: free: client-session, nchannels 1
Read from remote host 192.168.0.98: Connection reset by peer
Connection to 192.168.0.98 closed.
Transferred: sent 1712, received 1912 bytes, in 0.0 seconds
Bytes per second: sent 811372.7, received 906159.2
debug1: Exit status -1

A noter qu'apparemment l'échange de clés RSA ne se fait pas correctement
puisque le password m'est demandé ? Les reps .ssh et leur contenu est
pour fixé à 0600.

Bref, je comprend toujours pas :(
-- 
Claude

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  - From: claude <cthomassin2002@free.fr>
- Re: connection ssh
  - From: Vincent Lefevre <vincent@vinc17.org>

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