是的，AWS DMS（数据库迁移服务）可以用于从本地到云端的RDS（关系型数据库服务）迁移，而无需入站网络连接。以下是一个使用AWS CLI命令示例的解决方法：

1. 首先，确保您已安装并配置了AWS CLI。如果尚未安装，请参考AWS CLI文档进行安装和配置。

2. 创建一个JSON文件，命名为dms-task-settings.json，并将以下内容复制到文件中：

{
  "TargetMetadata": {
    "TargetSchema": "",
    "SupportLobs": true,
    "FullLobMode": true,
    "LobChunkSize": 64,
    "LimitedSizeLobMode": false,
    "LobMaxSize": 0,
    "InlineLobMaxSize": 0,
    "LoadMaxFileSize": 0,
    "ParallelLoadThreads": 0,
    "ParallelLoadBufferSize": 0,
    "BatchApplyEnabled": false,
    "TaskRecoveryTableEnabled": false,
    "ParallelLoadQueuesPerThread": 0,
    "ParallelApplyThreads": 0,
    "ParallelApplyBufferSize": 0
  },
  "FullLoadSettings": {
    "TargetTablePrepMode": "DROP_AND_CREATE",
    "CreatePkAfterFullLoad": false,
    "StopTaskCachedChangesApplied": false,
    "StopTaskCachedChangesNotApplied": false,
    "ResumeEnabled": false,
    "ResumeMinTableSize": 100000,
    "ResumeOnlyClusteredIndex": false,
    "MaxFullLoadSubTasks": 8,
    "TransactionConsistencyTimeout": 600,
    "CommitRate": 10000
  },
  "Logging": {
    "EnableLogging": false,
    "LogComponents": [
      {
        "Id": "SOURCE_UNLOAD",
        "Severity": "LOGGER_SEVERITY_DEFAULT"
      },
      {
        "Id": "SOURCE_CAPTURE",
        "Severity": "LOGGER_SEVERITY_DEFAULT"
      },
      {
        "Id": "TARGET_LOAD",
        "Severity": "LOGGER_SEVERITY_DEFAULT"
      },
      {
        "Id": "TARGET_APPLY",
        "Severity": "LOGGER_SEVERITY_DEFAULT"
      },
      {
        "Id": "TASK_MANAGER",
        "Severity": "LOGGER_SEVERITY_DEFAULT"
      }
    ]
  },
  "MigrationType": "full-load",
  "TableMappings": [
    {
      "SourceTable": {
        "SchemaName": "",
        "TableName": ""
      },
      "TargetTable": {
        "SchemaName": "",
        "TableName": ""
      }
    }
  ],
  "SourceEndpoint": {
    "EndpointIdentifier": "",
    "EndpointType": "source",
    "EngineName": "",
    "UserName": "",
    "Password": "",
    "ServerName": "",
    "Port": ,
    "DatabaseName": ""
  },
  "TargetEndpoint": {
    "EndpointIdentifier": "",
    "EndpointType": "target",
    "EngineName": "",
    "UserName": "",
    "Password": "",
    "ServerName": "",
    "Port": ,
    "DatabaseName": ""
  }
}

请确保将文件中的替换为您的实际值。例如，将替换为本地数据库的架构名称。

3. 执行以下命令创建DMS任务：

aws dms create-replication-task --replication-task-identifier  --migration-type full-load --table-mappings file://dms-task-settings.json

请将替换为您的任务标识符。

4. 您可以使用以下命令来启动DMS任务：

aws dms start-replication-task --replication-task-arn 

请将替换为您的任务ARN。

这样，您就可以使用AWS DMS从本地迁移到云端的RDS数据库，