Estou tentando o SSH de um Windows / Cygwin para o Ubuntu. Eu não estou usando o PuTTY. Em vez disso, estou usando o Cygwin ssh, que deve ser o OpenSSH. Eu usei ssh-user-config na máquina Windows para gerar meus pares de chaves: RSA1, RSA2 e DSA. Eu não estou usando senhas nas chaves. Quando eu corro:
ssh -vvv [email protected]
Eu recebo:
OpenSSH_5.6p1, OpenSSL 0.9.8o 01 Jun 2010
debug1: Reading configuration data /c/Documents and Settings/zzzz/.ssh/config
debug2: ssh_connect: needpriv 0
debug1: Executing proxy command: exec corkscrew corporate.proxy.zzz 8080 zzzz.zzz 22
debug1: permanently_drop_suid: 101684
debug3: Not a RSA1 key file /c/Documents and Settings/zzzz/.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 /c/Documents and Settings/zzzz/.ssh/id_rsa type 1
debug1: identity file /c/Documents and Settings/zzzz/.ssh/id_rsa-cert type -1
debug3: Not a RSA1 key file /c/Documents and Settings/zzzz/.ssh/id_dsa.
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
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /c/Documents and Settings/zzzz/.ssh/id_dsa type 2
debug1: identity file /c/Documents and Settings/zzzz/.ssh/id_dsa-cert type -1
ssh_exchange_identification: Connection closed by remote host
Estou usando saca-rolhas em minha máquina Windows para passar pelo firewall corporativo. Eu não acho que isso tenha algo a ver com esse problema.
Se for importante, o servidor de destino é uma instância LTS do Slicehost Ubuntu 10.04 (Lucid). Eu suponho que ele está rodando o OpenSSH também, então as chaves geradas pelo Cygwin OpenSSH não deveriam ser compatíveis com o Ubuntu?
A chave privada (~ / .ssh / id_rsa) se parece com:
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
Atualização:
Então cheguei em casa e olhei para /var/log/auth.log (obrigado Rob !). Ao conectar, eu só recebo:
sshd[2421]: Did not receive identification string from 999.999.999.999
Quando eu executei o sshd no modo de depuração, tudo que consigo é:
sshd[2423]: debug1: sshd version OpenSSH_5.3p1 Debian-3ubuntu4
sshd[2423]: debug1: read PEM private key done: type RSA
sshd[2423]: debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
sshd[2423]: debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
sshd[2423]: debug1: private host key: #0 type 1 RSA
sshd[2423]: debug1: read PEM private key done: type DSA
sshd[2423]: debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
sshd[2423]: debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
sshd[2423]: debug1: private host key: #1 type 2 DSA
Os arquivos de lista negra mencionados não existem.
O arquivo-chave id_rsa deve conter um bloco de cabeçalho identificando o tipo. Parece que isso está corrompido. Você provavelmente deve tentar recriar a chave usando o comando keygen.
O cabeçalho do meu arquivo-chave gerado pelo cygwin é como:
-----BEGIN RSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: AES-128-CBC,48818Cxxxxxxxxxxxxxxxxxxxxxxxxxx