Question

我正在编写一个php脚本，通过ssh连接到vyos路由器，并使用命令备份配置

show configuration commands。

当我从命令提示符连接时，它按预期工作

ssh vyos@1.1.1.99
Password: ****
$ show configuration

interfaces {
...

但这是我的脚本，我正在尝试使用php做同样的事情。

<?php
//Connect to VyOS virtual router and backup config

$host = '192.168.171.50';
$user = 'vyos';
$pass = 'vyos';

$connection = ssh2_connect($host, 22 );
if (!$connection) die('Connection failed');

if (ssh2_auth_password($connection, $user, $pass)) {
  echo "Authentication Successful!\n";
} else {
  die('Authentication Failed...');
}

$stream = ssh2_exec($connection, 'show configuration' );
$errorStream = ssh2_fetch_stream($stream, SSH2_STREAM_STDERR);

// Enable blocking for both streams
stream_set_blocking($errorStream, true);
stream_set_blocking($stream, true);

echo "Output: " . stream_get_contents($stream);
echo "Error: " . stream_get_contents($errorStream);

// Close the streams        
fclose($errorStream);
fclose($stream);

exit;

代码返回错误

Invalid command: [show]

我最好的猜测是这与PATH或其他环境变量有关。有任何想法吗？我正在使用vyatta / vyos vm图像来测试它。

Answer 1

我认为你可能会更幸运phpseclib。例如：

$ssh = new Net_SSH2('192.168.171.50');
$ssh->login('vyos', 'vyos');

$ssh->read('$');
$ssh->write("show configuration running\n");
echo $ssh->read('$');

这也可能有用：

$ssh = new Net_SSH2('192.168.171.50');
$ssh->login('vyos', 'vyos');

echo $ssh->exec('show configuration running');

如果这不起作用，可能会：

$ssh = new Net_SSH2('192.168.171.50');
$ssh->login('vyos', 'vyos');

$ssh->enablePTY();
echo $ssh->exec('show configuration running');

JC的编辑如下：最终工作代码 - 必须将终端长度设置为0或代码在寻呼机上挂起。

  include('Net/SSH2.php');
  $ssh = new \Net_SSH2('192.168.171.50');
  $ssh->login('vyos', 'vyos');

  $ssh->read('$');
  $ssh->write("set terminal length 0\n");
  $ssh->read('$');
  $ssh->write("show configuration\n");
  echo $ssh->read('$');

ssh2_exec环境尝试ssh到vyos路由器并获得配置

1 个答案: