
## Table of Contents

1. [Introduction](#introduction)
2. [Prerequisites](#prerequisites)
3. [Create EC2 Instance](#create-ec2-instance)
4. [Setup MongoDB on EC2 Amazon Linux](#setup-mongodb-on-ec2-amazon-linux)
5. [Enable MongoDB on Linux](#enable-mongodb-on-linux)
6. [Create Database, Collection, and Record](#create-database-collection-and-record)
7. [Use mongoexport to Export Data to JSON](#use-mongoexport-to-export-data-to-json)
8. [Conclusion](#conclusion)

## Introduction

This blog shows how to set up a MongoDB database environment on the cloud
using AWS EC2 with Amazon Linux.

## Prerequisites

- You'll need an AWS account. If you have never set up an AWS account before,
  go here to create one.

## Create EC2 Instance

First, we'll need to set up an EC2 instance, then we'll SSH into it and set
up the MongoDB database.

Create an EC2 instance with the AWS Linux AMI.

Choose t2.micro.

During the setup, everything can be left as default for this blog. We'll use
the default VPC, as long as the new EC2 instance can access the internet.

For the security group, we'll just open port 22 so we can SSH into the EC2
instance later to set up MongoDB.

## Setup MongoDB on EC2 Amazon Linux

After SSHing into the EC2 instance, we'll need to create the
mongodb-org-4.4.repo file at the location /etc/yum.repos.d.

```
cd /etc/yum.repos.d
```

Then, let's create the mongodb-org-4.4.repo file.

```
nano mongodb-org-4.4.repo
```

This will open the file editor. Copy the following MongoDB repo configuration
into the file and save it.

```
[mongodb-org-4.4]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/4.4/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.4.asc
```

Now the MongoDB 4.4 repo is ready. You should be able to install the MongoDB
package.

```
sudo yum install -y mongodb-org
```

Once you see it start downloading MongoDB packages, that's a good sign. Once
the MongoDB package installation is finished, you can verify by checking
whether the following folder exists. If the folder exists, the MongoDB
installation is done and you should be good to run MongoDB.

```
cd /var/lib/mongo
```

## Enable MongoDB on Linux

Run the following command to start the MongoDB process on the EC2 instance.

```
sudo systemctl start mongod
```

Run this command to enable mongod so it starts automatically even after
rebooting the EC2 instance.

```
sudo systemctl enable mongod
```

Now, at this point, your MongoDB on the Linux server should be ready. If you
have data, you can import or restore it to the MongoDB server.

## Create Database, Collection, and Record

Type `mongo` to start the MongoDB shell. Now let's play around on the server
to check that everything works.

```
mongo
```

### Create Database

The first command will show all the databases, then we'll create a new
database called **myDB**.

```
show dbs
use myDB
```

### Create Table and Record

This command will create the **myUser** table and insert a new
record.

```
db.myUser.insert({name: "john"});
```

## Use mongoexport to Export Data to JSON

We'll use mongoexport to export the data we just added to the **myUser**
table. By default, the mongoexport tools are not installed. You'll need to
install them by running the following command.

```
sudo yum list installed mongodb-database-tools
```

Now, all other tools — mongodump, mongorestore, mongoimport, mongoexport,
bsondump, mongostat, mongotop, and mongofiles — should be available to use.

The following command will export the **myUser** table and generate
data to a myUser.json file.

```
mongoexport --collection=myUser --db=myDB --out=myUser.json
```

## Conclusion

This blog covered how to set up MongoDB on Amazon Linux and use database tools
for backup or restore. Following are all the steps summarized.

```
cd /etc/yum.repos.d

nano mongodb-org-4.4.repo

[mongodb-org-4.4]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/4.4/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.4.asc

sudo yum install -y mongodb-org

sudo systemctl start mongod
```


This blog shows how to set up a MongoDB database environment on the cloud using AWS EC2 with Amazon Linux.

How to Setup MongoDB on Amazon Linux EC2


## Table of Contents

1. [What is Forever?](#what-is-forever)
2. [List All Running Forever Threads](#list-all-running-forever-threads)
3. [Stop a Specific Forever Thread](#stop-a-specific-forever-thread)
4. [Start a Specific Forever Thread](#start-a-specific-forever-thread)

## Introduction

Forever is an npm package for your Node.js server-side application. It allows you to keep your Node.js application running even after you log off your machine.

## What is Forever?

Forever is an npm package for your Node.js server-side application. Check out the package documentation at [forever npm package](https://www.npmjs.com/package/forever).

Use Forever so that even though you log off your machine, the Node.js application will still keep running. Without this, after you log off, your application will stop.

The following are a few common commands for running Forever on a Linux system.

### List All Running Forever Threads

```
/# forever list
```

### Stop a Specific Forever Thread

```
/# forever stop server.js
```

### Start a Specific Forever Thread

The following example is similar to `node server.js`:

```
/# forever start server.js
```

## Conclusion

Forever is a simple and effective tool for keeping your Node.js applications running in the background on Linux. With just a few commands, you can start, stop, and list your running Node.js processes.


Forever is an npm package. This blog shows how to use it to keep Node.js applications running.

How to Use Forever in Linux for Node.js


delete all folder, files and sub directory.

```
rm -rf ./{your folder location}
```

http://www.mediacollege.com/linux/command/linux-command.html


Linux

How to Setup MongoDB on Amazon Linux EC2

How to Use Forever in Linux for Node.js

Useful Linux Command