我正在尝试连接到托管在AWS RDS上的postgres数据库。但不知何故，我得到了下面提到的错误。主机“103.215.537.148”，用户“dbmasteruser”，数据库“postgres”的pg_hba.conf条目，未加密
使用PostGres 15.2
我试过在互联网上检查，但我不知道如何改变pg_hba.conf文件在AWS的RDS。
我尝试连接数据库到ec2并设置入站规则，但没有任何工作。
谢谢你的帮助

import WebSocket from 'ws';
    import PGPubsub from 'pg-pubsub';
    import { db } from '../../config';

    const initializeWebSocket = async (server: any) => {
      const wss = new WebSocket.Server({ server });

      const connectionString =
        process.env.NODE_ENV === 'development'
          ? db.dev.DB_URL
          : db.production.DB_URL;
      console.log('_____', process.env.NODE_ENV, '______ws');

      const pgClient = new PGPubsub(
        'postgres://dbmasteruser:[email protected]:5432/postgres',
        { log: console.log },
      );

      const channel = 'users_insert';

      await pgClient.addChannel(channel, function (channelPayload) {
    
        console.log(channelPayload, 'channnel run is ther some insersion');
        wss.clients.forEach((client) => {
          if (client.readyState === WebSocket.OPEN) {
            client.send('Data in the database has changed');
          }
        });
      });

      const matchChannel = 'match_update';
      await pgClient.addChannel(matchChannel, function (channelPayload) {
        wss.clients.forEach((client) => {
          if (client.readyState === WebSocket.OPEN) {
            client.send('Data in the database has changed');
          }
        });
      });
      const res = await pgClient.publish(channel, { hello: 'world' });
  
    export default initializeWebSocket;

    import Logger from './core/Logger';
    import { port } from './config';
    import app from './app';
    import http from 'http';
    import WebSocket from './routes/webSocket/webSocketServer';
    console.log('hii server');

    const server = http.createServer(app);

    WebSocket(server);

    server
      .listen(port, () => {
        Logger.info(`server running on port : ${port}`);
      })
      .on('error', (e) => Logger.error(e));