Linux下 ssh 扩展的应用 !

ssh操作服务器

首先安装ssh2扩展

下载地址 wget http://www.libssh2.org/download/libssh2-1.4.2.tar.gz

http://pecl.php.net/get/ssh2-0.13.tgz Version(0.13)

先安装 libssh2 在安装 SS2

# tar -zxvf libssh2-1.4.2.tar.gz
# cd libssh2-1.4.2
# ./configure --prefix=/usr/local/libssh2
# make && make install

以上为安装libssh2，这里需要记住libssh2的安装目录，因为在安装ssh2的时候还会用到。

SSH安装

# tar -zxvf ssh2-0.12.tgz
# cd ssh2-0.12
# phpize
# ./configure --prefix=/usr/local/ssh2 --with-ssh2=/usr/local/libssh2 --with-php-config=/usr/local/php/bin/php-config
# make && make install	

修改php.ini文件加入

extension=ssh2.so

接下来用代码实现ssh2连接操作服务器 创建info.php文件

   header("content-type:text/html; charset=utf-8");  
    $host='192.168.1.121';//被控制的linux的ip  
      
    $user='root';//用户名  
      
    $passwd='root';//密码  
      
    // 链接远程服务器  
      
    $connection = ssh2_connect($host, 22);  
      
    if (!$connection) die('connection to '.$host.':22 failed');  
      
    echo 'connection OK
';  
      
    // 获取验证方式并打印  
      
    $auth_methods = ssh2_auth_none($connection, $user);  
      
    print_r( $auth_methods);  
      
    if (in_array('password', $auth_methods ))  
    {  
      
        // 通过password方式登录远程服务器  
      
        if (ssh2_auth_password($connection, $user, $passwd))  
      
        {  
          echo $user.' login OK
';
      		if(empty($_GET['status']))
      		{
	          $pdd="systemctl status nginx";
            $stream = ssh2_exec($connection, $pdd); // 执行php
      		}
      		else
      		{
 				     if($_GET['status']==1)
            {
              $pdd="systemctl stop nginx";
              ssh2_exec($connection, $pdd); // 执行php
              $stream = ssh2_exec($connection, "systemctl status nginx"); // 执行php
            }
            if($_GET['status']==2)
            {
              $pdd="systemctl start nginx";
              ssh2_exec($connection, $pdd); // 执行php
              $stream = ssh2_exec($connection, "systemctl status nginx"); // 执行php
            }
            if($_GET['status']==3)
            {
              $pdd="systemctl restart nginx";
              ssh2_exec($connection, $pdd); // 执行php
              $stream = ssh2_exec($connection, "systemctl status nginx"); // 执行php
            }            
      		}
              
      
              
      
            stream_set_blocking($stream, true); // 获取执行pwd后的内容  
      
          if ($stream === FALSE) die("pwd failed");  
      		$statuss=stream_get_contents($stream);
          //print_r($statuss);
            if(strstr($statuss,"running"))
            {
            	echo "停止";
              echo "重启";
            }
            else
            {
            	echo "开启";
            }
      
        }  
      
        else  
      
        {  
      
            die( $user.' login Failed
');  
      
        }  
      
    }