如何使用 Node.js 建立到 MongoDB 数据库的 SSH 隧道连接 [英] How to use Node.js to make a SSH tunneling connection to a MongoDB database

问题描述

我的凭据与 Robomongo 完美配合，但我无法与 node.js 建立连接
我尝试使用 ssh2 和 tunnel-ssh npm 模块建立连接，但两次都失败了.
- mongo 连接不需要密码
- ssh 连接是使用 pem 密钥建立的

My credentials work perfectly with Robomongo but I can't make the connection with node.js
I have tried to make the connection using ssh2 and tunnel-ssh npm module and failed both times.
-The mongo connection does not require a password
-The ssh connection is made with a pem key

这是我在 ssh2 模块中使用的代码，我可以正确建立隧道，但 mongo 连接失败

This is the code I've used with ssh2 module, I can establish the tunneling correctly but the mongo connection fails

var Client = require('ssh2').Client;

var conn = new Client();
conn.on('ready', function() {
    console.log('Client :: ready');
    //mongo connection
        mongoose.connect('mongodb://localhost:27000/');
        var db = mongoose.connection;
        db.on('error', console.error.bind(console, 'connection error:'));
        db.once('open', function() {
            console.log("database connection established");
            var users = db.collection('user');
            var getallUsers = function (date, callback){
                users.find({}).toArray(function(err,data){
                    callback(data);
                })
            };
            getallUsers(null, function (data){
                console.log('data :'+  data);
            });
        });
    //end of mongo connection
}).connect({
    host: '**.**.**.**.**',
    port: 22,
    username: 'ec2-user',
    privateKey: key
});

以及隧道 ssh 的代码

And the code the tunnel-ssh

var config = {
    dstPort: 27000,
    user: 'ec2-user',
    host: '**.**.**.**.**',
    privateKey: key
};

var server = tunnel(config, function (error, server) {
    if(error){
        console.log("SSH connection error: " + error);
    }
    console.log('database connection initalizing');
    mongoose.connect('mongodb://localhost:27000/');

    var db = mongoose.connection;

    db.on('error', console.error.bind(console, 'connection error:'));
    db.once('open', function() {

        console.log("database connection established");

        var users = db.collection('user');
        var getallUsers = function (date, callback){
            users.find({}).toArray(function(err,data){
                callback(data);
            })
        };
        getallUsers(null, function (data){
            console.log(data);
        });

    });
});

我不确定是在建立隧道后使用常规的MongoDB连接字符串还是将数据库称为localhost例如
mongodb://localhost:portnumber.
或
mongodb://databasepath.subpath.mongodbdns.com:27000

I'm not sure whether to use the regular MongoDB connection string after establishing the tunnel or referring to the database as localhost such as
mongodb://localhost:portnumber.
or
mongodb://databasepath.subpath.mongodbdns.com:27000

Localhost 给了我一个权限被拒绝的错误，后者给了我一个超时

Localhost gives me a permission denied error, the latter gives me a timeout

推荐答案

正如 mscdex 提到的，ssh2 不是用于建立到数据库的 ssh 隧道连接的好模块.隧道 ssh 更合适.

As mscdex mentioned ssh2 isn't a good module to use to make an ssh tunnel connection to a database. tunnel-ssh is more appropriate.

以下是我使用过的配置选项:

Here are the configuration options I've used :

dstPort:远程数据库连接端口

dstPort: remote database connection port

localPort:与 dstPort 相同，它将是您本地机器使用的端口

localPort: same as dstPort, It'll be the port you'll use for your local machine

用户名:SSH 用户名，

username: SSH username,

主机:SSH地址

dstHost: 数据库连接 url (...mongodbns.com) ,

dstHost: database connection url (...mongodbns.com) ,

privateKey:SSH 密钥

privateKey: SSH key

然后一旦您的隧道连接，通过猫鼬连接到您的本地主机，例如 mondodb://localhost:27000(使用您在 localPort 中定义的本地端口)

Then once your tunnel is connected connect via mongoose to your localhost such as mondodb://localhost:27000 (use the localport you defined in localPort)

var server = tunnel(config, function (error, server) {
    if(error){
        console.log("SSH connection error: " + error);
    }
    mongoose.connect('mongodb://localhost:27000/');
    //...rest of mongoose connection
}

这篇关于如何使用 Node.js 建立到 MongoDB 数据库的 SSH 隧道连接的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！