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SSH proxy
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package main | |
import ( | |
"bytes" | |
"code.google.com/p/go.crypto/ssh" | |
"fmt" | |
"log" | |
"net" | |
"os" | |
) | |
func main() { | |
// Passwordless authentication | |
sshsock := os.ExpandEnv("$SSH_AUTH_SOCK") | |
addr, _ := net.ResolveUnixAddr("unix", sshsock) | |
agentConn, _ := net.DialUnix("unix", nil, addr) | |
agent := ssh.NewAgentClient(agentConn) | |
config := &ssh.ClientConfig{ | |
User: "example-user", | |
Auth: []ssh.ClientAuth{ | |
ssh.ClientAuthAgent(agent), | |
}, | |
} | |
fmt.Println("Dialing server B") | |
bastion, err := ssh.Dial("tcp", "server-b:22", config) | |
if err != nil { | |
panic("Failed to dial server B: " + err.Error()) | |
} | |
defer bastion.Close() | |
fmt.Println("Dialing server C from server B") | |
bastionClient, err := bastion.Dial("tcp", "server-c:22") | |
if err != nil { | |
panic("Failed to dial server C from server B: " + err.Error()) | |
} | |
defer bastionClient.Close() | |
fmt.Println("Handshaking server C from server B") | |
client, err := ssh.Client(bastionClient, config) | |
if err != nil { | |
panic("Failed to handshake server C from server B: " + err.Error()) | |
} | |
defer client.Close() | |
// Create a session | |
fmt.Println("Session on server C") | |
session, err := client.NewSession() | |
if err != nil { | |
log.Fatalf("unable to create session: %s", err) | |
} | |
defer session.Close() | |
var stdErr, stdOut bytes.Buffer | |
session.Stdout = &stdOut | |
session.Stdout = &stdErr | |
fmt.Println("Running uptime on server C") | |
if err := session.Run("/usr/bin/uptime"); err != nil { | |
panic("Failed to run: " + err.Error()) | |
} | |
fmt.Println(stdOut.String()) | |
fmt.Println(stdErr.String()) | |
} |
Still seeing an issue with NewAgentClient
even after swapping the module to golang.org/x/crypto/ssh
... was the function renamed?
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@nullne
golang.org/x/crypto/ssh