func ExampleClient_Listen() {
config := &ssh.ClientConfig{
User: "******",
Auth: []ssh.AuthMethod{
ssh.Password("password"),
},
}
// Dial your ssh server.
conn, err := ssh.Dial("tcp", "localhost:22", config)
if err != nil {
log.Fatalf("unable to connect: %s", err)
}
defer conn.Close()
// Request the remote side to open port 8080 on all interfaces.
l, err := conn.Listen("tcp", "0.0.0.0:8080")
if err != nil {
log.Fatalf("unable to register tcp forward: %v", err)
}
defer l.Close()
// Serve HTTP with your SSH server acting as a reverse proxy.
http.Serve(l, http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
fmt.Fprintf(resp, "Hello world!\n")
}))
}
func ExampleSession_RequestPty() {
// Create client config
config := &ssh.ClientConfig{
User: "******",
Auth: []ssh.AuthMethod{
ssh.Password("password"),
},
}
// Connect to ssh server
conn, err := ssh.Dial("tcp", "localhost:22", config)
if err != nil {
log.Fatalf("unable to connect: %s", err)
}
defer conn.Close()
// Create a session
session, err := conn.NewSession()
if err != nil {
log.Fatalf("unable to create session: %s", err)
}
defer session.Close()
// Set up terminal modes
modes := ssh.TerminalModes{
ssh.ECHO: 0, // disable echoing
ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
}
// Request pseudo terminal
if err := session.RequestPty("xterm", 80, 40, modes); err != nil {
log.Fatalf("request for pseudo terminal failed: %s", err)
}
// Start remote shell
if err := session.Shell(); err != nil {
log.Fatalf("failed to start shell: %s", err)
}
}
func ExampleDial() {
// An SSH client is represented with a ClientConn. Currently only
// the "password" authentication method is supported.
//
// To authenticate with the remote server you must pass at least one
// implementation of AuthMethod via the Auth field in ClientConfig.
config := &ssh.ClientConfig{
User: "******",
Auth: []ssh.AuthMethod{
ssh.Password("yourpassword"),
},
}
client, err := ssh.Dial("tcp", "yourserver.com:22", config)
if err != nil {
panic("Failed to dial: " + err.Error())
}
// Each ClientConn can support multiple interactive sessions,
// represented by a Session.
session, err := client.NewSession()
if err != nil {
panic("Failed to create session: " + err.Error())
}
defer session.Close()
// Once a Session is created, you can execute a single command on
// the remote side using the Run method.
var b bytes.Buffer
session.Stdout = &b
if err := session.Run("/usr/bin/whoami"); err != nil {
panic("Failed to run: " + err.Error())
}
fmt.Println(b.String())
}
func main() {
var auths []ssh.AuthMethod
if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))
}
if *PASS != "" {
auths = append(auths, ssh.Password(*PASS))
}
config := ssh.ClientConfig{
User: *USER,
Auth: auths,
}
addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
conn, err := ssh.Dial("tcp", addr, &config)
if err != nil {
log.Fatalf("unable to connect to [%s]: %v", addr, err)
}
defer conn.Close()
c, err := sftp.NewClient(conn, sftp.MaxPacket(*SIZE))
if err != nil {
log.Fatalf("unable to start sftp subsytem: %v", err)
}
defer c.Close()
w, err := c.OpenFile("/dev/null", syscall.O_WRONLY)
if err != nil {
log.Fatal(err)
}
defer w.Close()
f, err := os.Open("/dev/zero")
if err != nil {
log.Fatal(err)
}
defer f.Close()
const size int64 = 1e9
log.Printf("writing %v bytes", size)
t1 := time.Now()
n, err := io.Copy(w, io.LimitReader(f, size))
if err != nil {
log.Fatal(err)
}
if n != size {
log.Fatalf("copy: expected %v bytes, got %d", size, n)
}
log.Printf("wrote %v bytes in %s", size, time.Since(t1))
}