Chave SSH não é desbloqueada mesmo com ssh-add

0

Estou muito confuso. Todo manual que eu li nos últimos 15 minutos me diz que isso deve funcionar, mas não funciona:

$ ssh-agent -s
SSH_AUTH_SOCK=/tmp/ssh-syXn9Tk09V9P/agent.16332; export SSH_AUTH_SOCK;
SSH_AGENT_PID=16333; export SSH_AGENT_PID;
echo Agent pid 16333;
$ eval 'ssh-agent -s'
Agent pid 16362
$ ssh-add -l
The agent has no identities.
$ ssh-add .ssh/user\@server.de.key
Enter passphrase for .ssh/[email protected]: 
Identity added: .ssh/[email protected] (.ssh/[email protected])
$ ssh-add -l
1023 SHA256:TQ6nDwMeeP9tHf43lAG0mC5cbIPx5h7RYxMUcYKJHPI .ssh/[email protected] (RSA)
$ ssh server.de
Enter passphrase for key '/home/iras/.ssh/[email protected]':

Na configuração ssh, há uma entrada para server.de com o usuário de identidade e a chave ssh fornecida.

A saída detalhada:

$ ssh -vvv server.de
OpenSSH_7.2p2, OpenSSL 1.0.2h  3 May 2016
debug1: Reading configuration data /home/iras/.ssh/config
debug1: /home/iras/.ssh/config line 127: Applying options for apache4
debug1: /home/iras/.ssh/config line 177: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolving "10.0.0.42" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 10.0.0.42 [10.0.0.42] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/iras/.ssh/[email protected] type -1
debug1: key_load_public: No such file or directory                                                                                                                                                                                                                                                                                                                                                                                            
debug1: identity file /home/iras/.ssh/[email protected] type -1                                                                                                                                                                                                                                                                                                                                                   
debug1: Enabling compatibility mode for protocol 2.0                                                                                                                                                                                                                                                                                                                                                                                          
debug1: Local version string SSH-2.0-OpenSSH_7.2                                                                                                                                                                                                                                                                                                                                                                                              
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3                                                                                                                                                                                                                                                                                                                                                
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3 pat OpenSSH_6.6.1* compat 0x04000000                                                                                                                                                                                                                                                                                                                                                         
debug2: fd 3 setting O_NONBLOCK                                                                                                                                                                                                                                                                                                                                                                                                               
debug1: Authenticating to 10.0.0.42:22 as 'user'                                                                                                                                                                                                                                                                                                                                                                                       
debug3: hostkeys_foreach: reading file "/home/iras/.ssh/known_hosts"                                                                                                                                                                                                                                                                                                                                                                          
debug3: record_hostkey: found key type ECDSA in file /home/iras/.ssh/known_hosts:69                                                                                                                                                                                                                                                                                                                                                           
debug3: load_hostkeys: loaded 1 keys from 10.0.0.42                                                                                                                                                                                                                                                                                                                                                                                      
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: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,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,3des-cbc                                                                                                                                                                                                                                                                  
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-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-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1                                                                                                                                                                                                  
debug2: host key algorithms: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519                                                                                                                                                                                                                                                                                                                                                                  
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[email protected],[email protected],[email protected],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[email protected],[email protected],[email protected],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-sha1,[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-md5,hmac-sha1,[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
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:KAU//7qfeZspCpZwJWB7tZdYqQkGwUHVMV+830TdTwE
debug3: hostkeys_foreach: reading file "/home/iras/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/iras/.ssh/known_hosts:69
debug3: load_hostkeys: loaded 1 keys from 10.0.0.42
debug1: Host '10.0.0.42' is known and matches the ECDSA host key.
debug1: Found key in /home/iras/.ssh/known_hosts:69
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
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug2: key: /home/iras/.ssh/[email protected] ((nil)), explicit
debug3: send packet: type 5
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,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred 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/iras/.ssh/[email protected]
Enter passphrase for key '/home/iras/.ssh/[email protected]': 
    
por iRaS 21.07.2016 / 08:12

1 resposta

1

O problema é que você especificou explicitamente sua chave no ~/.ssh/config e você não armazenou chave pública adicional (não criptografada). Portanto, o cliente está tentando as chaves listadas no arquivo de configuração primeiro e as chaves de agente mais tarde (ele não pode corresponder a elas, porque a chave explícita está criptografada).

Se minha teoria estiver correta, deverá funcionar para você, se você remover a linha IdentityFile ~.ssh/[email protected] do seu ~/.ssh/config ou exportar a chave pública para o .ssh/[email protected]

ssh-keygen -yf .ssh/[email protected] > .ssh/[email protected]
    
por 22.07.2016 / 09:04

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