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Asked: 2024-09-27T14:01:13+05:30 In: ,

what is the default username for ubuntu in aws

Hello,

I recently launched an Ubuntu instance on AWS, and I’m a bit confused about logging in for the first time. I’ve read through the documentation, but I still can’t figure out what the default username is supposed to be. Is there a specific username I should be using to connect via SSH? I’ve tried a few common ones like “admin” and “ubuntu,” but they haven’t worked for me.

I’m aware that for different operating systems, there are often default usernames, but since AWS offers various AMIs (Amazon Machine Images) for Ubuntu, I want to make sure I’m using the correct one. I’m also concerned that I might be missing something important regarding the key pair used for authentication.

Could someone please clarify the default username for the Ubuntu AMI on AWS? If it differs based on the version of Ubuntu, I’d appreciate knowing about that too. I just want to ensure that I’m not overlooking something obvious. Any insights or step-by-step guides on how to connect to my instance would be tremendously helpful. Thank you!

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    2 Answers

    1. In AWS, when launching an Ubuntu instance, the default username varies depending on the version of Ubuntu you are using. For most recent versions, including Ubuntu 20.04 and Ubuntu 22.04, the default username is typically ubuntu. This is a convention followed by many cloud images provided by Canonical, the company behind Ubuntu, to streamline the login process for users. You can use this username when connecting to your instance via SSH, along with the private key that corresponds to the public key you specified during the instance creation process.

      It’s worth noting that for Ubuntu 16.04 and earlier versions, the default username was also ubuntu, but in some cases, you might encounter different usernames such as root or admin depending on specific AMI configurations. However, sticking to the ubuntu username should allow you to log in seamlessly across most standard Ubuntu instances hosted on AWS.

    2. So, like, if you’re trying to log into Ubuntu on AWS and you’re all confused about the username stuff, I can help you out a bit!

      The default username is usually ubuntu. Yep, just that simple! Whenever you spin up a new Ubuntu instance in AWS, you can just use ubuntu to log in. Pretty cool, right?

      But hey, if you’re using a different type of Ubuntu image, like, it could be root or admin or something like that, but ubuntu is the most common one. Just remember that!

      Happy coding or whatever!

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