我刚刚开始使用Go,并且尝试通过堡垒主机建立ssh连接,我成功地对堡垒主机进行了身份验证,但是在LAN主机上失败。我已经阅读了许多帖子,the answer to this很有帮助。但是我不确定那个人的配置会是什么。我的代码如下。我正在尝试只使用PublicKeys,如果它的重要性是我从Mac上开始,请对Linux进行身份验证,然后无法与另一个Linux主机建立第二个连接。普通的SSH可以正常工作
package main
import (
"fmt"
"golang.org/x/crypto/ssh"
"io/ioutil"
"log"
"os/user"
)
const TCP = "tcp"
const PORT = "22"
func bastionConnect(bastion string, localh string) *ssh.Client {
var usr, _ = user.Current()
var homeDir = usr.HomeDir
fmt.Printf("home is %v\n", homeDir)
key, err := ioutil.ReadFile(homeDir + "/.ssh/id_rsa")
if err != nil {
fmt.Print("i'm dying at reading ssh key")
panic(err)
}
signer, err := ssh.ParsePrivateKey(key)
if err != nil {
fmt.Print("i'm dying at parsing private key")
panic(err)
}
fmt.Printf("I'm returning public keys for %v", signer.PublicKey())
config := &ssh.ClientConfig{
User: usr.Username,
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
Auth: []ssh.AuthMethod{
ssh.PublicKeys(signer),
},
}
bClient, err := ssh.Dial(TCP, bastion+":22", config)
if err != nil {
log.Fatal(err)
}
fmt.Print("passed bastion host\n")
// Dial a connection to the service host, from the bastion
conn, err := bClient.Dial(TCP, fmt.Sprintf("%s:%s", localh, PORT))
if err != nil {
log.Fatal(err)
}
ncc, chans, reqs, err := ssh.NewClientConn(conn, fmt.Sprintf("%s:%s", localh, PORT), config)
if err != nil {
fmt.Printf("Error trying to conntect to %s via bastion host\n%v\n", localh, err)
log.Fatal(err)
}
sClient := ssh.NewClient(ncc, chans, reqs)
return sClient
}
func main() {
var bastion = "jumpdev.example.org"
var lanHost = "devserver01"
bastionConnect(bastion, lanHost)
}
我看到的最后一条日志行是Error trying to connect to devserver01 via bastion host
,错误为
2020/02/03 14:40:17 ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey]
请赦免所有Printfs所需要的内容。 在第二个连接中,公钥配置可能会搞砸吗?我还签出了this project,但似乎有点过头了。
答案 0 :(得分:1)
上面的代码很好,我遇到了一个authorized_keys
的问题,该问题一直连接到我,但忘记了本地.ssh/config
:(
我想对此做些扩展,所以不仅仅是混乱,我搞砸了帖子。为使lanhost代理连接更完整,我更新了gist
here