Estoy intentando transferir los archivos con sftp sin contraseña. Funcionó hasta la semana pasada y usando las mismas claves, pude transferir los archivos desde un servidor diferente. Pero este cierra la conexión inmediatamente después de ingresar el comando: sftp -v -oIdentityFile=/home/n123456/.ssh/id_rsa_ability[correo electrónico protegido]. Se autentica utilizando la clave pública. PFB el registro detallado.
OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to abc@xyz port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /home/n123456/.ssh/id_rsa_ability type 1
debug1: identity file /home/n123456/.ssh/id_rsa_ability-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: kex: ecdh-sha2-nistp256 need=32 dh_need=32
debug1: kex: ecdh-sha2-nistp256 need=32 dh_need=32
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXxxxxxx
debug1: Host 'abc@xyz' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:8
debug1: ssh_ecdsa_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,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
Server not found in Kerberos database
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/n123456/.ssh/id_rsa_ability
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: key_parse_private2: missing begin marker
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
Authenticated to xyz (xxxxxxx:22).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug1: Sending environment.
debug1: Sending subsystem: sftp
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype [email protected] reply 0
debug1: channel 0: free: client-session, nchannels 1
debug1: fd 0 clearing O_NONBLOCK
Transferred: sent 3440, received 3072 bytes, in 0.1 seconds
Bytes per second: sent 37158.3, received 33183.2
debug1: Exit status 1
Connection closed
Respuesta1
El servidor no pudo inicializar el subsistema SFTP.
En general, no hay mucho que puedas hacer al respecto. Póngase en contacto con el administrador del servidor para arreglar el servidor.
Lo más probable es que esto no tenga nada que ver con tus llaves.