Eu preciso fornecer acesso sftp a um cliente para o meu servidor ftp e isso está funcionando bem. Para que eles acessem nosso servidor sem usar senha, seguimos os passos abaixo em nosso servidor.
Criada a pasta .ssh .
Permissões modificadas:
chmod 700 ~/.ssh/
Criado o arquivo authorized_keys e as permissões modificadas:
chmod 600 authorized_keys
Adicionaram o conteúdo principal de id_rsa_client.pub ao nosso authorized_keys :
cat id_rsa_client.pub >> authorized_keys
Idealmente, isso deve permitir que eles se conectem ao nosso servidor sem a senha. Mas eles não conseguem e abaixo estão os registros que eles compartilharam.
$ ssh-keygen -lf .ssh/id_rsa.pub
2048 fc:3a:16:54:39:0e:80:7d:19:5b:70:be:f6:33:65:cd .ssh/id_rsa.pub
$ sftp -v [email protected]
Connecting to 195.211.321.176...
OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 195.211.321.176 [195.211.321.176] port 22.
debug1: Connection established.
debug1: identity file /home/sg215311/.ssh/id_rsa type 1
debug1: identity file /home/sg215311/.ssh/id_dsa type -1
debug1: loaded 2 keys
debug1: Remote protocol version 2.0, remote software version mod_sftp/0.9.8
debug1: no match: mod_sftp/0.9.8
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.3
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '195.211.321.176' is known and matches the RSA host key.
debug1: Found key in /.ssh/known_hosts:220
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Enter passphrase for key ' /.ssh/id_rsa':
debug1: read PEM private key done: type RSA
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /.ssh/id_dsa
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Enter passphrase for key ' /.ssh/id_dsa':
debug1: read PEM private key done: type DSA
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: password
[email protected]'s password:
Nós sugerimos não usar uma frase secreta para a chave privada e é isso que eles compartilharam depois (removemos alguns logs irrelevantes)
$ sftp -vvv [email protected]
Connecting to 195.211.321.176...
OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 195.211.321.176 [195.211.321.176] port 22.
debug1: Connection established.
debug3: Not a RSA1 key file 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
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file id_rsa type -1
debug3: Not a RSA1 key file id_dsa.
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file id_dsa type -1
debug1: loaded 2 keys
debug1: Remote protocol version 2.0, remote software version mod_sftp/0.9.8
debug1: no match: mod_sftp/0.9.8
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: dh_gen_key: priv key bits set: 128/256
debug2: bits set: 513/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile: filename known_hosts
debug3: check_host_in_hostfile: match line 220
debug1: Host '195.211.321.176' is known and matches the RSA host key.
debug1: Found key in known_hosts:220
debug2: bits set: 513/1024
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: id_rsa ((nil))
debug2: key: id_dsa ((nil))
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
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: Trying private key: id_rsa
debug1: read PEM private key done: type RSA
debug3: sign_and_send_pubkey
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: id_dsa
debug1: read PEM private key done: type DSA
debug3: sign_and_send_pubkey
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
[email protected]'s password
Qual pode ser o problema aqui?