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AWS re:Post Knowledge Center Spotlight: Amazon Linux 2026

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Find the newest and most recent articles for Amazon Linux.
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This spotlight on Amazon Linux equips you with the skills and troubleshooting tips to get the most out of a powerful service.
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updated 19 days ago152 views

Overview

The AWS re:Post Knowledge Center is your one-stop-shop for authoritative, up-to-date guidance on using AWS services. This month, we're highlighting Amazon Linux, which you can use to develop and run cloud applications with enhanced security.

With Amazon Linux, you can use the latest AWS features and access an integrated experience optimized for Amazon Elastic Compute Cloud (Amazon EC2) on Linux. Whether you're new to Amazon Linux or an experienced user, the following Knowledge Center articles equip you with the skills and troubleshooting tips to get the most out of this powerful service.

Secure your instance

Make sure that your Amazon EC2 instance has the latest patches and security updates. Learn more about how to upgrade your instance, manually and automatically:

How do I make sure that my Amazon EC2 Linux instance has the latest patches and security updates?

Update EC2 Linux with the latest updates

How do I see the patches that Patch Manager will install on my Amazon EC2 instance?

See the missing patches on EC2 instance

How do I resolve security vulnerabilities in Amazon Linux packages that remain unpatched?

Fix security vulnerabilities in Amazon Linux

How do I migrate my Amazon EC2 instance that runs AL2 to AL2023?

Migrate instance that runs AL2 to AL2023

Troubleshoot package and package manager issues

In Amazon Linux, you use the yum or dnf package management tool to find and install software packages. Understand how to troubleshoot issues when you download packages or run package manager commands:

Why do I receive errors when I use yum or dnf on my Amazon EC2 instance that runs Amazon Linux?

Troubleshoot yum or dnf errors on EC2 Linux instance

Why do yum and dnf commands show a "not registered" warning in Amazon EC2 instances that run RHEL?

Troubleshoot the "not registered" warning in RHEL instances

Why can't I install a package onto my Amazon EC2 Linux instance?

Troubleshoot package installation on EC2 Linux instance

How do I install a package that's not available in the repository on my Amazon EC2 Linux instance?

Install package that's not available in the repository

How do I troubleshoot a missing or broken package manager in my Amazon EC2 Linux instance?

Troubleshoot a missing or broken package manager

Troubleshoot instance issues

Troubleshoot issues when you try to connect to your instance, or unexpected instance behavior:

Why did my Amazon EC2 instance automatically or unexpectedly stop?

Understand why EC2 instance stopped

Why do I receive the "imported-openssh-key" or "PuTTY Fatal Error" when I connect to my instance?

Fix credential or PuTTY errors in Linux instance

How do I resolve SSH connection issues to my Amazon EC2 Linux instance?

Resolve SSH connection issues to your EC2 Linux instance

How do I troubleshoot NTP synchronization issues on my Amazon EC2 Linux instance?

Troubleshoot NTP synchronization issues on Linux

Related information

Have more questions about Amazon Linux? Check out the re:Post Amazon Linux knowledge base or ask your own question to get guidance from the AWS community.

If AWS suspended your account and you have no outstanding balances, then you might receive an email that AWS requires additional information about your reinstatement.

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