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  1. Estou tentando fazer uma conexão, por chaves, via SSH, eu criei o par de chaves sem senhas, copiei o conteúdo da chave pública no arquivo authorized_keys em ambas máquinas, já defini as permissões nos arquivos e diretórios, porém, quando tento conectar, se eu bloqueio a conexão por senha, da esse erro:

    ssh -vvv usu@maqremota
    OpenSSH_4.3p2, OpenSSL 0.9.8b 04 May 2006
    debug1: Reading configuration data /etc/ssh/ssh_config
    debug1: Applying options for *
    debug2: ssh_connect: needpriv 0
    debug1: Connecting to maqremota [x.x.x.x] port x.
    debug1: Connection established.
    debug1: permanently_set_uid: 0/0
    debug3: Not a RSA1 key file /root/.ssh/authorized_keys.
    debug1: identity file /root/.ssh/authorized_keys type 1
    debug3: Not a RSA1 key file /root/.ssh/id_rsa.
    debug2: key_type_from_name: unknown key type '-----BEGIN'
    debug3: key_read: missing keytype
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug3: key_read: missing whitespace
    debug2: key_type_from_name: unknown key type '-----END'
    debug3: key_read: missing keytype
    debug1: identity file /root/.ssh/id_rsa type 1
    debug1: loaded 2 keys
    debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
    debug1: match: OpenSSH_4.3 pat OpenSSH*
    debug1: Enabling compatibility mode for protocol 2.0
    debug1: Local version string SSH-2.0-OpenSSH_4.3
    debug2: fd 3 setting O_NONBLOCK
    debug1: SSH2_MSG_KEXINIT sent
    debug1: SSH2_MSG_KEXINIT received
    debug2: kex_parse_kexinit: diffie-hellman-group-exchange-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,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
    debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,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-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
    debug2: kex_parse_kexinit: ssh-rsa
    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,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
    debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,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_init: found hmac-md5
    debug1: kex: server->client aes128-cbc hmac-md5 none
    debug2: mac_init: 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: 134/256
    debug2: bits set: 483/1024
    debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
    debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
    debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
    debug3: check_host_in_hostfile: match line 1
    debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
    debug3: check_host_in_hostfile: match line 1
    debug1: Host 'alpha1.dpcnet.com.br' is known and matches the RSA host key.
    debug1: Found key in /root/.ssh/known_hosts:1
    debug2: bits set: 538/1024
    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: /root/.ssh/authorized_keys (0x875a898)
    debug2: key: /root/.ssh/id_rsa (0x8760858)
    debug1: Authentications that can continue: publickey
    debug3: start over, passed a different list publickey
    debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
    debug3: authmethod_lookup publickey
    debug3: remaining preferred: keyboard-interactive,password
    debug3: authmethod_is_enabled publickey
    debug1: Next authentication method: publickey
    debug1: Offering public key: /root/.ssh/authorized_keys
    debug3: send_pubkey_test
    debug2: we sent a publickey packet, wait for reply
    debug1: Authentications that can continue: publickey
    debug1: Offering public key: /root/.ssh/id_rsa
    debug3: send_pubkey_test
    debug2: we sent a publickey packet, wait for reply
    debug1: Authentications that can continue: publickey
    debug2: we did not send a packet, disable method
    debug1: No more authentication methods to try.
    Permission denied (publickey).
    ou quando libero conexão por senha, ele ignora a conexão por chave e pede senha:

    debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
    debug3: check_host_in_hostfile: match line 1
    debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
    debug3: check_host_in_hostfile: match line 1
    debug1: Host 'alpha1.dpcnet.com.br' is known and matches the RSA host key.
    debug1: Found key in /root/.ssh/known_hosts:1
    debug2: bits set: 522/1024
    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: /root/.ssh/authorized_keys (0x99ce898)
    debug2: key: /root/.ssh/id_rsa (0x99d4858)
    debug1: Authentications that can continue: publickey,gssapi-with-mic,password,keyboard-interactive
    debug3: start over, passed a different list publickey,gssapi-with-mic,password,keyboard-interactive
    debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
    debug3: authmethod_lookup gssapi-with-mic
    debug3: remaining preferred: publickey,keyboard-interactive,password
    debug3: authmethod_is_enabled gssapi-with-mic
    debug1: Next authentication method: gssapi-with-mic
    debug3: Trying to reverse map address 201.57.231.250.
    debug1: Unspecified GSS failure. Minor code may provide more information
    No credentials cache found

    debug1: Unspecified GSS failure. Minor code may provide more information
    No credentials cache found

    debug1: Unspecified GSS failure. Minor code may provide more information
    No credentials cache found

    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: Offering public key: /root/.ssh/authorized_keys
    debug3: send_pubkey_test
    debug2: we sent a publickey packet, wait for reply
    debug1: Authentications that can continue: publickey,gssapi-with-mic,password,keyboard-interactive
    debug1: Offering public key: /root/.ssh/id_rsa
    debug3: send_pubkey_test
    debug2: we sent a publickey packet, wait for reply
    debug1: Authentications that can continue: publickey,gssapi-with-mic,password,keyboard-interactive
    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
    debug2: input_userauth_info_req
    debug2: input_userauth_info_req: num_prompts 1
    Protocol 2
    #AddressFamily any
    #ListenAddress 0.0.0.0
    #ListenAddress ::

    HostKey ~/.ssh/id_rsa

    SyslogFacility AUTHPRIV

    AllowUsers usu usu1 usu2 usu3 usu4
    DenyUsers All

    PermitRootLogin no

    RSAAuthentication yes
    PubkeyAuthentication yes
    AuthorizedKeysFile ~/.ssh/authorized_keys

    PasswordAuthentication yes

    ChallengeResponseAuthentication yes

    GSSAPIAuthentication yes
    GSSAPICleanupCredentials yes

    UsePAM yes

    AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
    AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
    AcceptEnv LC_IDENTIFICATION LC_ALL
    X11Forwarding yes

    Subsystem sftp /usr/libexec/openssh/sftp-server
    Linux maqremota 2.6.18-92.1.13.el5 #1 SMP Wed Sep 24 19:33:52 EDT 2008 i686 i686 i386 GNU/Linux

  2. amigo,pelo que entendi você esta querendo logar na máquina como root. Entretanto o acesso root remoto (direto) está desabilitado!

    PermitRootLogin no

    Verifique isso e posta ae pra gente!




  3. ta "yes"

  4. e nada de rodar?



  5. infelizmente ainda nada! :P






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