我正在尝试连接到远程主机并检查文件是否存在
在这个阶段,我只是尝试连接,但出现错误:
2017/08/01 18:16:39 unable to connect: ssh: handshake failed: ssh: required host key was nil
我试图找出其他人是否也有和我一样的问题,但我就是找不到。
我知道我需要在这个过程中以某种方式检查known_hosts,但我只是不知道如何......
var hostKey ssh.PublicKey
// A public key may be used to authenticate against the remote
// server by using an unencrypted PEM-encoded private key file.
//
// If you have an encrypted private key, the crypto/x509 package
// can be used to decrypt it.
key, err := ioutil.ReadFile("/home/user/.ssh/id_rsa")
if err != nil {
log.Fatalf("unable to read private key: %v", err)
}
// Create the Signer for this private key.
signer, err := ssh.ParsePrivateKey(key)
if err != nil {
log.Fatalf("unable to parse private key: %v", err)
}
config := &ssh.ClientConfig{
User: "user",
Auth: []ssh.AuthMethod{
// Use the PublicKeys method for remote authentication.
ssh.PublicKeys(signer),
},
HostKeyCallback: ssh.FixedHostKey(hostKey),
}
// Connect to the remote server and perform the SSH handshake.
client, err := ssh.Dial("tcp", "host.com:22", config)
if err != nil {
log.Fatalf("unable to connect: %v", err)
}
defer client.Close()
}