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 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 that is responsible of setting the session and communicating func sshDispatch(cmd string, user string, ip string, key string, messages chan<- string) { var res string pemBytes, err := ioutil.ReadFile(key) if err != nil { log.Fatal(err) } signer, err := ssh.ParsePrivateKey(pemBytes) if err != nil { log.Fatalf("parse key failed:%v", err) } config := &ssh.ClientConfig{ User: user, Auth: []ssh.AuthMethod{ssh.PublicKeys(signer)}, } conn, err := ssh.Dial("tcp", ip+":22", config) if err != nil { log.Fatalf("dial failed:%v", err) } defer conn.Close() session, err := conn.NewSession() if err != nil { log.Fatalf("session failed:%v", err) } defer session.Close() var stdoutBuf bytes.Buffer session.Stdout = &stdoutBuf err = session.Run(cmd) if err != nil { // upon dispatching a query that can result in Process exited with 1 // it shouldn't completly fail, the thing here is that that OS // was not compatible with that query, so we handle some cases here res += fmt.Sprintf("\nMachine: %v@%v\n", user, ip) if strings.Contains(cmd, "apt_resources") || strings.Contains(cmd, "deb_packages") { res += fmt.Sprintf("Target is RPM based, query won't return anything: %v\n", cmd) } else if strings.Contains(cmd, "rpm_package_files") || strings.Contains(cmd, "rpm_packages") { res += fmt.Sprintf("Target is APT based, query won't return anything: %v\n", cmd) } else { res += fmt.Sprintf("No response for the following query from this machine : %v\n", cmd) } messages <- res } else { res += fmt.Sprintf("\nMachine: %v@%v\n", user, ip) res += stdoutBuf.String() res = string(res[:]) messages <- res } }