使用Acquia DB在AWS EC2上安装Drupal：SQLSTATE [HY000] [2002]连接被拒绝

Question

我在本地计算机上使用Acquia Dev Desktop构建了一个Drupal 8站点。我正在AWS EC2上安装Drupal，并且遇到以下错误。

Failed to connect to your database server. The server reports the 
following message: SQLSTATE[HY000] [2002] Connection refused.

我已经使用我的config.inc文件检查了数据库名称，用户名，密码和端口，但仍然无法连接它。以下是drupal安装页面的屏幕截图，其中包含错误：

这是我的config.inc文件信息（带有虚拟密码，但真实版本确实与我在Drupal安装页面输入的内容相匹配）

/*
 * First server
  */
 $i++;
 /* Authentication type */
 $cfg['Servers'][$i]['auth_type'] = 'config';
 /* Server parameters */
 $cfg['Servers'][$i]['host'] = '127.0.0.1';
 $cfg['Servers'][$i]['port'] = '33067';
 $cfg['Servers'][$i]['connect_type'] = 'tcp';
 $cfg['Servers'][$i]['compress'] = false;
 /* Select mysqli if your server has it */
 $cfg['Servers'][$i]['extension'] = 'mysql';

 /* rajk - for blobstreaming */
 $cfg['Servers'][$i]['bs_garbage_threshold'] = 50;
 $cfg['Servers'][$i]['bs_repository_threshold'] = '32M';
 $cfg['Servers'][$i]['bs_temp_blob_timeout'] = 600;
 $cfg['Servers'][$i]['bs_temp_log_threshold'] = '32M';

 $cfg['Servers'][$i]['user']          = 'root';
 $cfg['Servers'][$i]['password']      = 'mypasswordhere';
 $cfg['Servers'][$i]['AllowNoPassword'] = false;

 $cfg['AllowUserDropDatabase'] = true;

Answer 1

Take a look on this answer. Because if you're using RHEL/CentOS machine could be solution.

Edit: RHEL/CentOS or any other EC2 system with SELinux enabled.