[Check] -distribute flag with ssh targets

[hahwul]

SSIA

[hahwul]

Memo

ssh client

go get golang.org/x/crypto/ssh

package main

import (
	"fmt"
	"log"
	"os"

	"golang.org/x/crypto/ssh"
)

func main() {
	if len(os.Args) != 4 {
		log.Fatalf("Usage: %s <user> <host:port> <command>", os.Args[0])
	}

	client, session, err := connectToHost(os.Args[1], os.Args[2])
	if err != nil {
		panic(err)
	}
	out, err := session.CombinedOutput(os.Args[3])
	if err != nil {
		panic(err)
	}
	fmt.Println(string(out))
	client.Close()
}

func connectToHost(user, host string) (*ssh.Client, *ssh.Session, error) {
	var pass string
	fmt.Print("Password: ")
	fmt.Scanf("%s\n", &pass)

	sshConfig := &ssh.ClientConfig{
		User: user,
		Auth: []ssh.AuthMethod{ssh.Password(pass)},
	}
	sshConfig.HostKeyCallback = ssh.InsecureIgnoreHostKey()

	client, err := ssh.Dial("tcp", host, sshConfig)
	if err != nil {
		return nil, nil, err
	}

	session, err := client.NewSession()
	if err != nil {
		client.Close()
		return nil, nil, err
	}

	return client, session, nil
}

$  ./aaaaa username *******.hahwul.com:22 ls
Password: ********
1
1.go
1.html
1.html-orig.xml
1.txt
123
123.md
123.png
.......

ssh client (password / public key)

https://gist.github.com/HwDhyeon/4250215d5166bc0244df8978af2e7e71

[hahwul]

https://pkg.go.dev/golang.org/x/crypto/ssh

[hahwul]

type AuthMethod
func GSSAPIWithMICAuthMethod(gssAPIClient GSSAPIClient, target string) AuthMethod
func KeyboardInteractive(challenge KeyboardInteractiveChallenge) AuthMethod
func Password(secret string) AuthMethod
func PasswordCallback(prompt func() (secret string, err error)) AuthMethod
func PublicKeys(signers ...Signer) AuthMethod
func PublicKeysCallback(getSigners func() (signers []Signer, err error)) AuthMethod
func RetryableAuthMethod(auth AuthMethod, maxTries int) AuthMethod

type Session
func (s *Session) Close() error
func (s *Session) CombinedOutput(cmd string) ([]byte, error)
func (s *Session) Output(cmd string) ([]byte, error)
func (s *Session) RequestPty(term string, h, w int, termmodes TerminalModes) error
func (s *Session) RequestSubsystem(subsystem string) error
func (s *Session) Run(cmd string) error
func (s *Session) SendRequest(name string, wantReply bool, payload []byte) (bool, error)
func (s *Session) Setenv(name, value string) error
func (s *Session) Shell() error
func (s *Session) Signal(sig Signal) error
func (s *Session) Start(cmd string) error
func (s *Session) StderrPipe() (io.Reader, error)
func (s *Session) StdinPipe() (io.WriteCloser, error)
func (s *Session) StdoutPipe() (io.Reader, error)
func (s *Session) Wait() error
func (s *Session) WindowChange(h, w int) error

[hahwul]

or go-scp
https://github.com/bramvdbogaerde/go-scp