Login via ssh

Ecco il classico output del debug un login su una macchina remota effettuato attraverso ssh.

Linea di comando, abilitando il verbose per vedere tutti i passaggi effettuati per l'autentificazione
[[email protected] pippo]$ ssh -v -l neo remotehost
OpenSSH_3.4p1, SSH protocols 1.5/2.0, OpenSSL 0x0090602f
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: ssh_connect: needpriv 0
debug1: Connecting to remotehost [10.0.0.143] port 22.
debug1: Connection established.
debug1: identity file /home/neo/.ssh/identity type -1
debug1: identity file /home/neo/.ssh/id_rsa type -1
debug1: identity file /home/neo/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version CORE 1.0
debug1: no match: CORE 1.0
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.4p1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: dh_gen_key: priv key bits set: 126/256
debug1: bits set: 1598/3191
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'arena.rete039.it' is known and matches the RSA host key.
debug1: Found key in /home/neo/.ssh/known_hosts:49
debug1: bits set: 1611/3191
debug1: ssh_rsa_verify: signature correct
debug1: kex_derive_keys
debug1: newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: waiting for SSH2_MSG_NEWKEYS
debug1: newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: done: ssh_kex2.
debug1: send SSH2_MSG_SERVICE_REQUEST
debug1: service_accept: ssh-userauth
debug1: got SSH2_MSG_SERVICE_ACCEPT
debug1: authentications that can continue: publickey,password,keyboard-interacti
ve
debug1: next auth method to try is publickey
debug1: try privkey: /home/neo/.ssh/identity
debug1: try privkey: /home/neo/.ssh/id_rsa
debug1: try pubkey: /home/neo/.ssh/id_dsa
debug1: authentications that can continue: publickey,password,keyboard-interacti
ve
debug1: next auth method to try is keyboard-interactive
debug1: authentications that can continue: publickey,password,keyboard-interacti
ve
debug1: next auth method to try is password
richiede di inserire la password
[email protected]'s password:
Password errata (controllate sempre il caps lock!!)
debug1: authentications that can continue: publickey,password,keyboard-interactive
Permission denied, please try again.
[email protected]'s password:
La password inserita e' corretta
debug1: ssh-userauth2 successful: method password
debug1: channel 0: new [client-session]
debug1: send channel open 0
debug1: Entering interactive session.
debug1: ssh_session2_setup: id 0
debug1: channel request 0: pty-req
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: channel request 0: x11-req
debug1: channel request 0: shell
debug1: fd 3 setting TCP_NODELAY
debug1: channel 0: open confirm rwindow 0 rmax 32768
[[email protected] pub]$


Se e' la prima volta che vi connettete al remote host da una cerrta postazione o con un nuovo utente vi verra' visualizzato un messaggio simile al quale dovrete rispondere sempre yes (per esteso)
The authenticity of host 'morpheus (10.0.0.145)' can't be established.
RSA key fingerprint is d8:aa:6b:71:3f:ee:8a:a1:73:21:81:c1:7e:48:fc:a2.
Are you sure you want to continue connecting (yes/no)

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