How To Fix Server Refused Our Key in Amazon AWS

Have you ever encountered a ‘Server Refused Our Key’ error in your Amazon AWS account?

Well, what causes this error? How do you fix it? Such questions might be running through your mind. Don’t worry; we’re here to help you out.

To begin with, let’s start with the basics — like introduction, features, and other information that might be helpful.

What is Amazon AWS?

The leading cloud provider in the marketplace, Amazon Web Services, is a household name. It provides over 170 AWS services to the developers to access them from anywhere whenever they need.

Amazon Web Services (AWS) offers businesses compute power, content delivery, database storage, and other features to help scale and grow.

In AWS, infrastructure as a service (IaaS), platform as a service (PaaS), and packaged software as a service (SaaS) co-exist as one platform.

As a result, AWS provides a highly reliable, scalable, and low-cost infrastructure platform in the cloud, and thousands of companies around the world rely upon AWS.

Why Should You Choose Amazon AWS?

So, Why AWS? why should you even consider Amazon AWS? These are some of the reasons why:

Ease of Access

Amazon EC2 offers users complete control of their virtual servers or compute instances. This is similar to owning and managing a physical server locally in the office.

You can scale up or down instances, take control over processor settings, and start or stop instances with just a few clicks of the mouse through the web interface.

There is no need to hire a skilled IT professional to manage this system because it doesn’t rely on a high level of technical skills.

The platform is straightforward to use since it provides well-documented web services APIs to access the platform.

Commitment Free

One benefit of using AWS services is that no matter what type of business you have, you are not locked into a contract or commitment, and there is no minimum spend required for you to be able to use them.

No matter what you need, AWS has you covered with nothing but the shortest commitment (not even a month) for absolutely everything.

You will be billed for your server-backed service on an hourly basis as soon as you cease serving it.

This insight is helpful to all businesses of any size since it prevents overpaying for storage you don’t require or getting locked into a contract that doesn’t fit your needs.

Security

Every company wants to make sure that its data is secure. AWS creates a highly secure, world-class infrastructure, both physically and virtually.

AWS offers a way to protect your data more reliably and securely. Their data centers worldwide provide the safety and security you need. Additional data centers are scheduled to open this year.

When it comes to securing business data, it stands to reason that security would be a highly-sought feature when switching to a cloud storage provider or a service storage provider. AWS offers robust security to fit the needs of most businesses.

Affordable and Flexible

Its flexibility is its most significant feature – you can use AWS infrastructure without limitations. Users can use AWS infrastructure on-demand in any way they like. Various options are available through AWS.

Several businesses have already utilized AWS cloud services for their business and IT requirements if your company has not yet benefited from AWS cloud services.

As a result, migrations from existing platforms are more accessible, and deployments are streamlined. Apart from flexibility, there are affordable options as well.

Unlimited Server Capacity

Then AWS is the best choice for you! Whether you require massive bandwidth for great websites or a secure email service, AWS will take care of it all.

Your business won’t encounter any IT challenges that AWS can’t handle. AWS includes support for growth, no matter how large it is.

AWS is safer and more secure than a single storage device, making your company vulnerable to a malicious file or virus. There are more reasons to use AWS – but we’ll end it right here.

What Causes “Server Refused Our Key” Error?

In summary, numerous factors may contribute to the “Server Refused Our Key” error, and we will examine some of the most likely ones.

1. There is a possibility that your instance is not running or is stopped.
2. You’re trying to pair with an invalid or outdated key.
3. There was a problem accessing the instance or the user was deleted from the server.
4. You’re using the incorrect user name for your AMI when connecting to your EC2 instance.
5. Instance in your security group, network access control list, or local firewall.
6. An incorrect DNS name or server endpoint was used to connect to the database instance.

How To Fix Server Refused our Key AWS

Based on the problems listed above, you may be able to deduce how this error occurs. Moreover, we will walk you through some of the problems and solve them.

1. Instance is Not Running or Stopped

If your instance is not running or stopped then you can fix server refused our Key problem on AWS with ease.

All you have to do is start your instance and you’re good to go.

To run an instance follow these steps:

1. Open the EC2 console.
2. Choose your instance from the list.
3. Press Launch when you’re ready to launch the instance.
4. Create a key pair or select an existing key pair, then select the agreement box and choose Launch Instances.
5. Choose View Instances to see the status of the instance.

2. Pairing with Outdated or Invalid Key

If your key is outdated or invalid, you can resolve the issue by creating a new pair of keys or with a correct one.

To Pair with a new key follow these steps.

1. Access Amazon EC2’s console.
2. Navigate to Network & Security, then choose Key Pairs.
3. Select Create key pair.
4. In the Name field, enter a descriptive name.
5. In the Key Pair field, choose RSA or ED25519.
6. Then select Create key pair.
7. A private key file will be downloaded by your browser automatically.

3. Problem Accessing The Instance Or The User Was Deleted From The Server

In case the user trying to access the instance was deleted from the server, add the user back as a new user.

Each Linux instance launched by Amazon EC2 comes with a default system account with administrative access. In cases where multiple users need access to the instance, it’s a good idea to create separate accounts for each user.

1. Use an existing key pair, or create one for the new user.
2. To create your own key pair, use the Create-Key-Pair or New-EC2KeyPair cmdlets.
3. When creating your own key pair using a third-party tool, ensure your key matches the guidelines.

4, Using Incorrect Username For Your AMI

If you’re using incorrect username then it can trigger error “Server Refused Our Key in Amazon AWS”.

Simply insert the correct usernames to resolve this issue. Below are the default usernames for the various operating systems.

• The username is ec2-user for Amazon Linux 2 or the Amazon Linux AMI users.
• The user name is centos or ec2-user for CentOS AMI.
• The user name is admin for Debian AMI users
• The user name is fedora or ec2-user for Fedora AMI users
• The user name is ec2-user or root for RHEL AMI users
• The user name is ec2-user or root for SUSE AMI users.
• The user name is ubuntu for Ubuntu AMI users.
• The user name is ec2-user for Ubuntu AMI users.
• The user name is bitnami for Ubuntu AMI users. 

Conclusion

This concludes the list of ways to fix Server Refused Our Key in Amazon AWS.

We have provided a list of possible problems and solutions that you can use to fix this issue.

Additionally, you can look at the Amazon AWS forums to find a solution from other users.

If you still experience any issues, feel free to drop a comment below so we can assist you.

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