Eu usei o comando abaixo rsync para o conteúdo de um diretório na pasta inicial da máquina removida:
rsync -az directory/ user@IPADDRESS:~/
Os arquivos foram movidos sem problemas para todas as 4 máquinas.
Depois de mover os arquivos, recebo o seguinte erro ao tentar ssh nas máquinas: Permission denied (publickey).
directory/ não continha uma pasta chamada .ssh , por isso tenho certeza de que o arquivo authorized_keys não foi substituído por rsync .
O que poderia estar causando a negação da chave depois de executar rsync ?
Aqui está a saída detalhada do ssh (as máquinas foram configuradas para aceitar as chaves id_ed25519 - sem senhas ou outros tipos de chaves):
$ ssh user@ipaddress -vvvv
OpenSSH_7.5p1 Ubuntu-10, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "ipaddress" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to ipaddress [159.89.207.176] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/greg/.ssh/id_ed25519 type 4
debug1: key_load_public: No such file or directory
debug1: identity file /home/greg/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.5p1 Ubuntu-10
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.2 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to ipaddress:22 as 'user'
debug3: hostkeys_foreach: reading file "/home/greg/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/greg/.ssh/known_hosts:20
debug3: load_hostkeys: loaded 1 keys from ipaddress
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:PGCROru0DmQIrR6hCS2RHuh1IuPfVTkC2XhTCb2JFHY
debug3: hostkeys_foreach: reading file "/home/greg/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/greg/.ssh/known_hosts:20
debug3: load_hostkeys: loaded 1 keys from ipaddress
debug3: hostkeys_foreach: reading file "/home/greg/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/greg/.ssh/known_hosts:18
debug3: load_hostkeys: loaded 1 keys from 159.89.207.176
debug1: Host 'ipaddress' is known and matches the ECDSA host key.
debug1: Found key in /home/greg/.ssh/known_hosts:20
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /home/greg/.ssh/id_rsa ((nil))
debug2: key: /home/greg/.ssh/id_dsa ((nil))
debug2: key: /home/greg/.ssh/id_ecdsa ((nil))
debug2: key: /home/greg/.ssh/id_ed25519 (0x5563c360b490)
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,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: /home/greg/.ssh/id_rsa
debug3: no such identity: /home/greg/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /home/greg/.ssh/id_dsa
debug3: no such identity: /home/greg/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/greg/.ssh/id_ecdsa
debug3: no such identity: /home/greg/.ssh/id_ecdsa: No such file or directory
debug1: Offering ED25519 public key: /home/greg/.ssh/id_ed25519
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
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).
Você descobriu que alterar a propriedade do diretório pessoal (longe do usuário que será autenticado) ou o modo (para permitir a gravação em grupo ou outro) impedirá o ssh de honrar o conteúdo de ~/.ssh . Consertar a propriedade e o modo (para 755 ou mais) consertará as coisas.