如何通过 SSH 连接到 Aurora 无服务器 MySQL 实例

Question

我无法通过 EC2 隧道找到 Aurora MySql Db。

我们有一个 Aurora 无服务器数据库 (MySql)。问题是我不知道如何从我的机器本地连接到数据库。

我尝试将 SSH 选项添加到 mysqlstring 构建器，例如：

        MySqlConnectionStringBuilder _connectionBuilder = new MySqlConnectionStringBuilder()
        {
            UserID = "admin",
            Server = "RDS endpoint in Aws",
            Port = 3306,
            SshHostName = "Ip to the Ec2",
            SshUserName = "the ec2 user",
            SshPort = 22,
            SshKeyFile = @"filepath to local .pem file",
            Database = "db name",
            Password = "db-password"
        };

我尝试同时使用字符串生成器和 ssh 客户端，例如：

 using (var sshClient = new SshClient(_connectionBuilder.SshHostName, 22, _connectionBuilder.SshUserName, new PrivateKeyFile(_connectionBuilder.SshKeyFile)))
            {

                sshClient.Connect();
                // SQL QUERY HERE
                sshClient.Disconnect();
            }

代码在发布到 lambda 实例但不在我的本地计算机上时工作并连接。

如果我打开 CMD window 并输入：

ssh -N -L 3306:{aws Db endpoint}:3306 -i {path to .pem} {user}@{ip}

并将服务器更改为本地主机。

Answer 1

可能您的数据库无法公开访问。

PubliclyAccessible Indicates whether the DB instance is an internet-facing instance. If you specify true, AWS CloudFormation creates an instance with a publicly resolvable DNS name, which resolves to a public IP address. If you specify false, AWS CloudFormation creates an internal instance with a DNS name that resolves to a private IP address.

创建数据库时，确保将其设置为可公开访问并且位于连接了 Internet 网关的子网中。

还要确保数据库的安全组允许连接到您的 SSH 端口 (22) 和数据库 tcp 端口 (3306)。

编辑

您无法访问 VPC 外部的 Aurora 服务器：

You can't give an Aurora Serverless DB cluster a public IP address. You can access an Aurora Serverless DB cluster only from within a virtual private cloud (VPC) based on the Amazon VPC service.

Answer 2

您可以使用 SSH.NET for this. You can find a working example here in the edited question。