用SSH与PHP相连接 确保数据传输的安全性

ssh2_exec($con, 'ls -al; echo "__COMMAND_FINISHED__"' );

$time_start = time();
　　$data = "";
　　while( true ){
　　$data .= fread($stream, 4096);
　　if(strpos($data,"__COMMAND_FINISHED__") !== false){
　　echo "okay: command finished\n";
　　break;
　　}
　　if( (time()-$time_start) > 10 ){
　　echo "fail: timeout of 10 seconds has been reached\n";
　　break;
　　}
　　}

ssh2_scp_send($con, "/tmp/source.dat", "/tmp/dest.dat", 0644);

/etc/ssh/sshd_config:
　　# Change to yes to enable tunnelled clear text passwords
　　PasswordAuthentication yes

/etc/init.d/ssh restart