win10堡垒机连接错误

# 定义连接参数
$hostname = "your_bastion_host"
$username = "your_username"
$password = "your_password"
$port = 22

# 使用SSH客户端连接堡垒机
$sshClient = New-Object System.Net.Sockets.TcpClient($hostname, $port)
$stream = $sshClient.GetStream()

# 发送认证信息
$authRequest = "SSH-2.0-OpenSSH_7.6p1\r\n"
$stream.Write([System.Text.Encoding]::ASCII.GetBytes($authRequest), 0, $authRequest.Length)

# 接收服务器响应
$response = New-Object System.Byte[] 1024
$bytesRead = $stream.Read($response, 0, $response.Length)
$responseString = [System.Text.Encoding]::ASCII.GetString($response, 0, $bytesRead)

# 发送用户名和密码
$usernameRequest = "username:$username\r\n"
$passwordRequest = "password:$password\r\n"
$stream.Write([System.Text.Encoding]::ASCII.GetBytes($usernameRequest), 0, $usernameRequest.Length)
$stream.Write([System.Text.Encoding]::ASCII.GetBytes($passwordRequest), 0, $passwordRequest.Length)

# 接收认证结果
$response = New-Object System.Byte[] 1024
$bytesRead = $stream.Read($response, 0, $response.Length)
$responseString = [System.Text.Encoding]::ASCII.GetString($response, 0, $bytesRead)

# 输出认证结果
Write-Host $responseString

# 关闭连接
$stream.Close()
$sshClient.Close()