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AWS re:Post Knowledge Center Spotlight: Amazon EC2 - Linux

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Find the newest and most recent articles for Amazon EC2
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This spotlight on Amazon EC2 - Linux equips you with the skills and troubleshooting tips to get the most out of a foundational service.
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updated 7 months ago250 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 Elastic Compute Cloud (Amazon EC2), a secure and resizable compute capacity for virtually any workload.

Amazon EC2 offers the broadest and deepest compute platform, with over 750 instances and choice of the latest processor, storage, networking, operating system, and purchase model to help you best match the needs of your workload. This spotlight focuses on Amazon EC2 configurations for Linux. Whether you're new to Amazon EC2 or an experienced user, the following Knowledge Center articles equip you with the skills and troubleshooting tips to get the most out of this foundational service.

Set up your instances

An instance is a virtual server in the AWS Cloud. Learn how to set up and configure the operating system and applications that run on your instance:

How do I choose the correct EC2 instance type for my workload?

Select the appropriate EC2 instance type for your workload

How do I change my EC2 instance type across different families and hypervisors?

Change EC2 instance type across family and hypervisor

How do I configure instance metadata and activate tags on my EC2 instance?

Configure instance metadata and activate tags on my instance

How do I assign a static hostname to an EC2 Linux instance?

Assign a static hostname to an EC2 Linux instance

How do I manage and reschedule Amazon EC2 instance maintenance events?

Manage Amazon EC2 scheduled maintenance events

Optimize your configuration

Use the following security, performance, and cost optimization best practices to get the maximum benefit out of Amazon EC2:

How do I secure my EC2 instance to meet compliance programs?

Secure EC2 instance to meet compliance program

How do I optimize the performance of my Amazon EBS volumes?

Optimize the performance of EBS volumes

Should I use Savings Plans or Reserved Instances for my EC2 instance?

Decide on Savings Plans or Reserved Instances for EC2 instances

How do I modify a Reserved Instance or apply Reserved Instance benefits to existing EC2 instances?

Modify an Amazon EC2 Reserved Instance

How do I remove the ec2-user account from my Amazon EC2 Linux instance?

Remove ec2-user account from EC2 Linux instance

How can I use Systems Manager automation to enforce only IMDSv2 access to my EC2 instance metadata?

Use Systems Manager automation to enforce IMDSv2 on your instance

How do I increase my security group rule quota in my Amazon VPC?

Increase security group rule quota in Amazon VPC

Mount a file system on your instances

Use a file system to share file data without provisioning or managing storage capacity and performance. Learn how to mount Amazon Elastic File System (Amazon EFS) or Amazon FSx file systems:

Why can't I mount my Amazon EFS file system on my Amazon EC2 instance?

Resolve Amazon EFS file system mount issue on an EC2 instance

How do I use NVMe over TCP to mount an FSx for ONTAP file system on an EC2 Linux instance?

Use NVMe/TCP to mount FSx for ONTAP file system on Linux instance

How do I use NFS to mount an FSX for ONTAP volume on my EC2 Linux instance?

Use NFS to mount FSX for ONTAP volume on Linux instance

How do I mount an FSx for ONTAP CIFS share on a Linux EC2 instance?

Mount FSx for ONTAP CIFS share on EC2 instance not joined to Active Directory

How do I use iSCSI to mount an FSx for ONTAP iSCSI LUN on an EC2 Linux instance?

Use iSCSI to mount FSx for ONTAP iSCSI LUN on EC2 instance

Work with instance AMIs

An Amazon Machine Image (AMI) is an image that provides the software that is required to set up and boot an Amazon EC2 instance. Learn how to manage, share, upgrade, and troubleshoot your AMIs:

How do I identify the latest RHEL AMI for my EC2 instance?

Identify the latest RHEL AMI in Amazon EC2

How do I migrate my RHEL BYOL EC2 instance license to an RHUI license?

Migrate RHEL BYOL instance license to an RHUI license

How do I get extended lifecycle support for RHEL 7 and AL2 after their end-of-support date?

Get ELS for RHEL 7 and AL2 for Amazon EC2

How do I share encrypted AMIs across accounts to launch encrypted EC2 instances?

Share encrypted AMIs across accounts for EC2 instances

How do I find deprecated AMIs in Amazon EC2?

Find deprecated AMIs in Amazon EC2

How do I troubleshoot EC2 instance launch failures caused by AMI issues?

Troubleshoot EC2 launch issues caused by AMIs

How do I troubleshoot errors when I copy AMIs between different Regions or accounts?

Troubleshoot copy errors between Regions or accounts in Amazon EC2

Connect to your instances

To log on to your instance, you must establish a connection to the instance. Find out how to configure and restore connection:

How do I restore the connection to my EC2 instance?

Restore connection to EC2 instance

Why can't I use Session Manager to connect to my Amazon EC2 instance?

Troubleshoot Session Manager connection issues

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 connect to my Amazon EC2 instance if I lose my SSH key pair after the initial launch?

Connect to an EC2 instance when I lost my SSH key pair

Why did Amazon EC2 unexpectedly terminate my instance?

Troubleshoot EC2 instance termination

Why is my EC2 Linux instance unreachable and failing its status checks?

Troubleshoot status check failures on an unreachable EC2 Linux instance

Troubleshoot instance configuration issues

Issues in Amazon EC2 occur for a variety of reasons. The following articles help you troubleshoot issues with high resource usage, communication issues, configuration issues, and more:

How do I troubleshoot high memory usage issues on my EC2 Linux instance?

Troubleshoot high memory utilization in EC2 Linux instances

How do I troubleshoot high CPU utilization on an EC2 Linux instance?

Troubleshoot high CPU utilization

How do I resolve NVIDIA GPU and GPU driver communication issues in Amazon EC2?

Resolve NVIDIA GPU and GPU driver issues in Amazon EC2

How do I troubleshoot instance metadata issues on my EC2 Linux instance?

Troubleshoot instance metadata issues on my EC2 instance

How do I troubleshoot EC2 instance start and stop time issues with the Instance Scheduler on AWS?

Troubleshoot the Instance Scheduler on AWS for EC2 instances

Related information

Have more questions about Amazon EC2? Check out the re:Post Amazon EC2 knowledge base or ask your own question to get guidance from the AWS community.

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