An AWS EC2 (Elastic Compute Cloud) instance is a virtual server in the cloud that provides scalable computing power for various applications.
When working with an EC2 instance, assigning a domain name to it is essential, making it easily accessible via a user-friendly URL.
In this article, we will explore the process of how to assign domain name to an AWS EC2 instance and the steps involved in configuring the necessary DNS (Domain Name System) settings.
- 1 Understanding Domain Names and DNS
- 2 Configuring DNS for EC2 Instance
- 3 Assigning a Domain Name to EC2 Instance
- 4 Verifying Domain Name Assignment
- 5 Best Practices for Domain Name Assignment
- 6 How to Assign Domain Name to AWS EC2 Instance- FAQs
- 6.1 Can I assign multiple domain names to an EC2 instance?
- 6.2 Is it possible to assign a domain name to a running EC2 instance?
- 6.3 What if I already have a domain name registered with a different provider?
- 6.4 Are any additional costs associated with assigning a domain name to an EC2 instance?
- 6.5 Can I use a subdomain instead of a top-level domain (TLD) for my EC2 instance?
Understanding Domain Names and DNS
Definition of domain name
A domain name is a unique and human-readable identifier for a website or online service. It typically consists of two parts: the actual name, the second-level domain, and the top-level domain (TLD), such as .com, .org, or .net.
For example, in the domain name “example.com,” “example” is the second-level domain, and “.com” is the TLD.
Overview of DNS
The Domain Name System (DNS) is a distributed naming system that translates domain names into IP addresses.
It allows users to access websites and services using easy-to-remember domain names instead of numeric IP addresses.
DNS records store information about domain names, including the IP address of the associated server or service.
Configuring DNS for EC2 Instance
To assign a domain name to an EC2 instance, we need to configure the DNS settings for the domain. The following steps outline the process:
Step 1: Registering a domain name
If you don’t have a registered domain name, you must choose and register one with a domain registrar.
Popular domain registrars include GoDaddy, Namecheap, and Google Domains. Ensure the domain registrar allows you to manage DNS settings for the domain.
Step 2: Setting up DNS records
Once you have a registered domain name, you must set up the necessary DNS records. These records define the mapping between the domain name and the IP address of your EC2 instance.
The primary DNS record you need to configure is the “A” record, which associates the domain name with the IP address.
Step 3: Configuring DNS settings
To configure the DNS settings for your domain, you will typically use the DNS management interface provided by your domain registrar.
Access the DNS management panel and locate the option to edit DNS records for your domain.
Update the “A” record by entering the IP address of your EC2 instance. Save the changes, and the DNS propagation process will begin. The DNS changes may take some time to propagate globally.
Assigning a Domain Name to EC2 Instance
Now that you have configured the DNS settings for your domain, it’s time to assign the domain name to your EC2 instance.
Step 1: Navigating to the EC2 dashboard
Go to the AWS Management Console and navigate to the EC2 dashboard. This is where you can manage your EC2 instances.
Step 2: Allocating an Elastic IP address
In the EC2 dashboard, locate the “Elastic IPs” section and click “Allocate new address.” An Elastic IP address is a static IP you can associate with your EC2 instance.
Step 3: Associating the Elastic IP with the EC2 instance
Once you have allocated an Elastic IP address, select it from the list and click on “Actions” > “Associate IP address.”
Choose the EC2 instance to associate the IP address and confirm the association.
The Elastic IP address will now be associated with your EC2 instance, and the instance will be accessible via the domain name you configured earlier.
Verifying Domain Name Assignment
To ensure that the domain name assignment is successful, follow these verification steps:
Step 1: Updating the DNS settings
Return to your domain registrar’s DNS management panel and verify that the “A” record points to the correct IP address of your EC2 instance. Make any necessary adjustments if the record is incorrect.
Step 2: Testing the domain name
Open a web browser and enter your domain name in the address bar. You should see your website or application hosted on the EC2 instance if everything is configured correctly.
Best Practices for Domain Name Assignment
When assigning a domain name to your AWS EC2 instance, consider the following best practices:
- Choose a memorable domain name that reflects your brand or purpose.
- Implement SSL/TLS certificates to secure user communications and your EC2 instance.
- Regularly monitor your DNS configurations to ensure they remain accurate and up to date.
Assigning a domain name to an AWS EC2 instance is crucial in making your applications or websites easily accessible to users.
Following the outlined steps, you can configure the necessary DNS settings and associate a domain name with your EC2 instance.
Remember to choose a memorable domain name, implement security measures, and regularly monitor your DNS configurations for optimal performance.
How to Assign Domain Name to AWS EC2 Instance- FAQs
Can I assign multiple domain names to an EC2 instance?
You can assign multiple domain names to an EC2 instance by configuring multiple DNS records.
Is it possible to assign a domain name to a running EC2 instance?
Absolutely! You can assign a domain name to a running EC2 instance by following the steps mentioned in the article.
What if I already have a domain name registered with a different provider?
Suppose you have a domain name registered with a different provider. You can still assign it to your EC2 instance by updating the DNS settings through your domain registrar’s management panel.
Are any additional costs associated with assigning a domain name to an EC2 instance?
The cost of assigning a domain name to an EC2 instance primarily depends on the domain registrar you choose and any additional services you opt for, such as SSL/TLS certificates. Be sure to check the pricing details with your domain registrar.
Can I use a subdomain instead of a top-level domain (TLD) for my EC2 instance?
You can use a subdomain instead of a TLD for your EC2 instance. Configure the DNS records accordingly, specifying the subdomain as the domain name.