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MongoDB 3.6 provides developers and DevOps professionals with a secure by default configuration that protects data from external threats by denying unauthorized access on a public network. MongoDB servers will now only listen for connections on the local host unless explicitly configured to logged listen on another address.

This tutorial will briefly show you how to enable IP addresses beyond localhost to your MongoDB node to ensure your networked servers are able to connect to your database. You will see how easily MongoDB is configured to start up and listen on specific network interfaces.

This tutorial assumes you have:

  • Installed MongoDB 3.6 (this does not handle upgrading from previous versions)
  • Multiple network interfaces on your server (we'll use an AWS EC2 instance)
  • Basic understanding of IP Networks and how to configure a private network for your data (we’ll use an AWS VPC)
  • Understanding that "localhost" refers to IP

Getting Started

I have launched an AWS EC2 instance with Ubuntu 16.04 LTS and installed MongoDB as described on the MongoDB downloads page.

I want to enable the private IP range that is part of my VPC to allow us to access our MongoDB database. By doing this, we'll ensure that only our private network and "localhost" are valid network paths to connect to the database. This will help ensure we never have outsiders poking into our database!

I first launch an Ubuntu 16.04 EC2 instance in my public subnet within my VPC. By doing this, I will allow my network interface to allow network connections to the outside world without requiring a NAT Gateway.

Next, I follow the instructions on the MongoDB documentation on how to install MongoDB on Ubuntu. I can verify which ethernet interfaces the process starts on in Linux by running the following command:

ubuntu@ip-172-16-0-211:$ sudo netstat -plant | egrep mongod tcp 0 0 LISTEN 2549/mongod

This output means that users are only permitted to access our MongoDB instance on port 27017 via IP If you would like to make this available to other systems on your network, you'll want to bind the local IP associated with the private network. To determine network interface configuration easily, we can just run an ifconfig from the command line:

ubuntu@ip-172-16-0-211:$ ifconfig eth0 Link encap:Ethernet HWaddr 0e:5e:76:83:49:3e inet addr: Bcast: Mask: inet6 addr: fe80::c5e:76ff:fe83:493e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:65521 errors:0 dropped:0 overruns:0 frame:0 TX packets:7358 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:94354063 (94.3 MB) TX bytes:611646 (611.6 KB)

We have the IP we want to make part of the list of acceptable network addresses we can listen from. I will open the /etc/mongodb.conf file and edit it to reflect the additional network IP:

The file's changes will be:

# network interfaces net: port: 27017 bindIp:,

After modifying bindIP under "net" from just to include private IP address, we should be able to restart and see it listening from netstat on both now:

ubuntu@ip-172-16-0-211:$ sudo service mongod stop ubuntu@ip-172-16-0-211:$ sudo service mongod start ubuntu@ip-172-16-0-211:$ sudo netstat -plnt | egrep mongod tcp 0 0 LISTEN 2892/mongod tcp 0 0 LISTEN 2892/mongod

Now our database will be able to accept requests from both the specified IP address as well as localhost:

Shell access via localhost

ubuntu@ip-172-16-0-211:$ mongo localhost MongoDB shell version v3.6.0-rc2 connecting to: mongodb://

Shell access via private IP

ubuntu@ip-172-16-0-211:$ mongo MongoDB shell version v3.6.0-rc2 connecting to: mongodb://

Next Steps

The default localhost configuration has tremendous benefits to security as you now must explicitly allow network connections, blocking attackers from untrusted networks. Keeping your MongoDB database safe from remote intrusion is extremely important. Make sure you follow our Security Checklist to configure your MongoDB database cluster with the appropriate security best practices.

Now that you understand how to configure additional IP addresses on your MongoDB 3.6 server, you're able to begin configuring replication. Don't forget backups, monitoring and all the other important parts of your MongoDB clusters' health. If you'd rather spend less time on these tasks and deploy MongoDB clusters with a click or an API call, check out MongoDB Atlas, our fully managed database as a service.

Источник: https://www.mongodb.com/blog/post/enabling-ip-security-for-mongodb-36-on-ubuntu

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