AWS Knowledge Center
Here are some of the most frequent questions and requests that we receive from AWS customers. If you don't see what you need here, check out the AWS Documentation, visit the AWS Discussion Forums, or visit the AWS Support Center.
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Featured Knowledge Center videos
Aditya shows you how to process data with Amazon EMR
Abiodun shows you how to attach or replace an instance profile on an Amazon EC2 instance
Amy explains how to sign up for Amazon Mechanical Turk
Nivea shows you how to stop and start instances using the Amazon EC2 instance scheduler
Mahendra shows you how to resolve authorization errors in Amazon EKS
Mohamad shows you how to create an IAM policy to control access to Amazon EC2 resources using tags
AWS Activate
Amazon API Gateway
How do I use a resource policy to whitelist certain IP addresses to access my API Gateway API?
Why can't I connect to my public API from an API Gateway VPC endpoint?
How do I set up API Gateway with my own CloudFront distribution?
How do I associate a model with my API in Amazon API Gateway?
How do I find the source of latency for requests to my edge-optimized API in API Gateway?
How do I define a custom domain name for my Amazon API Gateway API?
How do I resolve API Gateway "malformed Lambda proxy response" errors or 502 status codes?
How do I implement IAM authentication for APIs created with Amazon API Gateway?
Amazon AppStream 2.0
How do I update the image of an existing AppStream 2.0 Fleet?
How do I create an AppStream 2.0 image and deploy it to my fleet?
AWS Artifact
Amazon Athena
Why does Amazon Athena time out when querying tables with many partitions?
How do I resolve the "Unable to verify/create output bucket" error in Amazon Athena?
How do I resolve the syntax error "column cannot be resolved" in Athena?
How do I analyze my Application Load Balancer access logs using Athena?
MSCK REPAIR TABLE detects partitions in Athena but does not add them to the AWS Glue Data Catalog
How do I analyze my Amazon S3 server access logs using Athena?
When I query a table in Amazon Athena, the TIMESTAMP result is empty
How can I access and download the results from an Amazon Athena query?
I get errors when I try to read JSON data in Amazon Athena
When I run an Athena query, I get an "Access Denied" error
How do I use the results of my Amazon Athena query in another query?
AWS Auto Scaling
Why am I receiving an error when I try to create an Amazon EC2 Auto Scaling lifecycle hook?
Why doesn’t my Amazon EC2 Auto Scaling policy trigger when my CloudWatch alarm changes states?
How do I create a target tracking scaling policy for an Amazon EC2 Auto Scaling group?
How do I reboot an instance in an Amazon EC2 Auto Scaling group?
Why did Amazon EC2 Auto Scaling terminate an instance?
Why didn’t Amazon EC2 Auto Scaling terminate an unhealthy instance?
Why aren’t my EMR nodes scaling?
My API calls to AWS Auto Scaling are getting throttled. What can I do to avoid this?
How do I ensure that Auto Scaling lifecycle actions complete successfully when I use AWS CodeDeploy?
Why did my Auto Scaling Group Scale down?
How do I troubleshoot scaling issues with my Amazon EC2 Auto Scaling group?
AWS Batch
How do I use AWS Batch as a target for my CloudWatch Events rule?
Why is my AWS Batch job stuck in RUNNABLE status?
How do I resolve the "DockerTimeoutError" error in AWS Batch?
AWS Certificate Manager
Why did my ACM certificate fail automatic renewal?
Why can't I find my imported certificate for my load balancer or CloudFront distribution?
How can I add certificates for multiple websites to the ELB using Amazon certificate manager?
How do I install SSL/TLS certificates on Amazon CloudFront?
Why can't I import a third-party public SSL/TLS certificate into AWS Certificate Manager (ACM)?
How can I receive the validation email to verify my domain for AWS Certificate Manager (ACM)?
Amazon Chime
AWS Cloud9
AWS CloudFormation
How can I tag a root volume from an instance created by AWS CloudFormation?
How do I resolve the "Custom Named Resource already exists in stack" error in AWS CloudFormation?
How do I enable special parameters in an AWS Glue job using AWS CloudFormation?
How can I resolve the "Export EXPORT_NAME cannot be updated as it is in use by STACK_NAME" error?
How do I add routes to the main route table in my VPC with AWS CloudFormation?
How do I troubleshoot an AWS CloudFormation stack that's in DELETE_FAILED status?
How do I prevent my AWS CloudFormation stack from rolling back on failure?
How do I stop and start my instances using the AWS Instance Scheduler?
How can I install AWS CloudFormation helper scripts on Ubuntu 16.04 LTS or RHEL 7 AMIs?
How can I reference a resource in another stack from an AWS CloudFormation template?
How do I retain some of my resources when I delete an AWS CloudFormation stack?
How can I avoid circular dependency when deploying a Lambda function with CloudFormation?
How do I use multiple values for individual parameters in a CloudFormation template?
How do I resolve AWS CloudFormation template validation errors or template format errors?
How do I prevent the resources in my AWS CloudFormation stack from getting deleted or updated?
How can I subscribe an AWS Lambda function to a push-based event source in AWS CloudFormation?
How do I resolve the “Route did not stabilize in expected time” error in AWS CloudFormation?
How do I resolve the CloudFormer error “No default VPC found for this user”?
How do I resolve the “VpcPeeringConnection failed to stabilize” error in AWS CloudFormation?
How do I use Amazon ECS service discovery in AWS CloudFormation?
How can I stop my Amazon ECS service from failing to stabilize in AWS CloudFormation?
How can I attach an IAM managed policy to an IAM role in AWS CloudFormation?
Amazon CloudFront
How do I know if I'm using an older CloudFront API version?
How do I allow access to an Amazon S3 bucket only from a CloudFront distribution?
Why isn't CloudFront following a cache behavior that I created?
How do I reduce the latency of requests that receive the response "X-Cache:Miss from cloudfront"?
Why is CloudFront serving outdated content from Amazon S3?
How do I use CloudFront to serve a static website hosted on Amazon S3?
Why can't I use my custom SSL certificate for my CloudFront distribution?
Should I use CloudFront to serve my website content?
How do I resolve the error "The request could not be satisfied. Bad Request" from Amazon CloudFront?
How do I prevent CloudFront from caching certain files?
How do I resolve the error "CloudFront wasn't able to connect to the origin"?
How can I serve multiple domains from a CloudFront distribution over HTTPS?
How do I resolve HTTP 504 (Gateway Timeout) errors from CloudFront?
How do I configure Amazon CloudFront to forward host headers to the origin?
Why isn't CloudFront serving my domain name over HTTPS?
Why is my CloudFront distribution returning an “X-Cache:Miss from CloudFront” error?
Can I migrate a CloudFront distribution to another AWS account?
Why isn't CloudFront returning my default root object from a subdirectory?
Why doesn't Amazon CloudFront cache files in the amount of time I specified?
How do I migrate my SSL certificate to the US East (N. Virginia) region?
How do I use CloudFront to serve HTTPS requests for my Amazon S3 bucket?
Can I associate multiple SSL certificates with my CloudFront distribution?
AWS CloudHSM
Which CloudHSM certificates are used for the client-server end-to-end encrypted connection?
How can I view or monitor audit log events recorded by my CloudHSM instances?
How can I resolve the error "RET_MXN_AUTH_FAILED" with the cloudhsm_mgmt_util command for CloudHSM?
How can I collect AWS CloudHSM Classic logs for troubleshooting?
I want to stop using the CloudHSM Classic service
How do I search for IAM access key API activity using CloudTrail?
How do I automatically create tables in Amazon Athena to search through AWS CloudTrail logs?
How can I use CloudTrail to review what API calls and actions have occurred in my AWS account?
How can I set up alerts to see when an access key is used?
How do I share keys with others users to only allow certain crypto functions in CloudHSM?
Amazon CloudWatch
How can I set up a CloudWatch alarm to automatically recover my EC2 instance?
How do I upload my Windows logs to CloudWatch?
Which Log Group is causing a sudden increase in my CloudWatch Logs bill?
How can I receive notifications for scheduled events for my EC2 instance using CloudWatch Events?
How do I retrieve log data from CloudWatch Logs?
How do I avoid throttling when I call PutMetricData in the CloudWatch API?
How do I monitor automatic recovery of my EC2 instances using CloudWatch alarms and SNS?
Why did my CloudWatch alarm trigger when its metric doesn't have any breaching data points?
Why can’t I push log data to CloudWatch Logs with the awslogs agent?
How do I push Docker container logs to CloudWatch Logs through a proxy?
How can I be sure that CloudWatch alarms trigger actions?
How do I set up scheduled EBS volume snapshots using Amazon CloudWatch?
How do I push custom metrics to CloudWatch?
Should I use GetMetricData or GetMetricStatistics for CloudWatch metrics?
Why isn't my CloudWatch GetMetricStatistics API call returning data points?
How can I use Amazon CloudWatch metrics to identify NAT gateway bandwidth issues?
Why did my CloudWatch alarm send me a notification after a single breached data point?
Why is the option "Recover this instance" disabled when creating an alarm in the EC2 console?
AWS CodeDeploy
How can I install the CodeDeploy agent using cfn-init?
How can I run the CodeDeploy agent with a user profile that's not the root profile?
AWS CodePipeline
Amazon Cognito
How do I set up LinkedIn as a social identity provider in an Amazon Cognito user pool?
How do I change the attributes of an Amazon Cognito user pool after creation?
Amazon Cognito isn't delivering MFA text messages to my app's users. How do I troubleshoot this?
What's the difference between Amazon Cognito user pools and identity pools?
How do I configure the hosted web UI for Amazon Cognito?
How can I decode and verify the signature of an Amazon Cognito JSON Web Token?
My Amazon Cognito Streams role is mis-configured
How do I set up a third-party SAML identity provider with an Amazon Cognito user pool?
How do I set up Auth0 as a SAML identity provider with an Amazon Cognito user pool?
How do I set up AD FS as a SAML identity provider with an Amazon Cognito user pool?
How do I set up Okta as a SAML identity provider with an Amazon Cognito user pool?
How do I set up OneLogin as a SAML identity provider with an Amazon Cognito user pool?
AWS Config
How can I retrieve number of configuration items per month recorded by AWS Config?
How can I troubleshoot AWS Config console error messages?
Why can't I find the user name that created an EBS volume by searching CloudTrail events logs?
Amazon Connect
AWS Database Migration Service (AWS DMS)
How do I enable, access, and delete CloudWatch logs for AWS DMS?
How do I enable and use the validation feature in AWS DMS?
How do I create a task in AWS DMS and enable control tables?
How do I increase logging levels for the AWS SCT when using AWS DMS?
How do I create event subscriptions for AWS DMS?
How do I use transformations in AWS DMS?
How do I use the Overview details to access my AWS DMS task information?
How do I use table statistics to monitor an AWS DMS task?
How do I create an AWS DMS task assessment report?
How do I use source filters in my AWS DMS tasks?
How do I set up table mappings in AWS DMS?
How do I install the AWS SCT and database drivers for Windows?
How do I create an AWS DMS replication instance?
How can I monitor an AWS DMS task?
Can I use an Amazon S3 bucket as an AWS Database Migration Service (AWS DMS) target?
How do I set up detailed debug logging for my AWS Database Migration Service task?
How do I create source or target endpoints using AWS Database Migration Service (AWS DMS)?
How do I migrate to Amazon RDS for MySQL using AWS Database Migration Service (DMS)?
How do I migrate my data from one DB engine to another using AWS DMS?
How do I use AWS DMS mapping rules for migrating an Oracle schema to PostgreSQL in lowercase?
AWS Data Pipeline
Data Pipeline uses m3.xlarge instances instead of the instance type that I specified
How do I create an SNS notification that includes error information for a Data Pipeline activity?
I received the Data Pipeline error "Resource is stalled. Associated tasks not able to make progress"
How can I use AWS Data Pipeline to copy tables from one database table to another?
How can I export multiple DynamoDB tables using Data Pipeline?
How do I stop and start Amazon EC2 Instances at scheduled intervals with AWS Data Pipeline?
AWS Device Farm
What is the Device Farm IP address range?
How do I delete a Device Farm project?
How do I include a testng.xml file in the root of the tests.jar file for Device Farm?
AWS Direct Connect
How do I configure routing for my Direct Connect private virtual interface?
How can I set up a Direct Connect gateway?
How can I get notifications for AWS Direct Connect scheduled maintenance or events?
How can I troubleshoot BGP connection issues over Direct Connect?
How do I connect my private network to AWS public services using an AWS Direct Connect public VIF?
How can I migrate virtual interfaces to Direct Connect connections or LAG bundles?
My public virtual interface is stuck in the "verifying" state. What can I do?
My virtual interface BGP status is down in the AWS console. What should I do?
How do I provision a new link aggregation group (LAG) using AWS Direct Connect connections?
My Direct Connect connection state is shown as 'down' in the console. What should I do?
How do I set an Active/Passive Direct Connect connection to AWS?
How should I prepare for maintenance on my Direct Connect connection?
How do I enable BFD for my DX connection?
How do I establish an AWS VPN over an AWS Direct Connect connection?
What’s the difference between a hosted virtual interface (VIF) and a hosted connection?
How do I provision an AWS Direct Connect connection?
How do I move a DX connection from one AWS account to another?
AWS Directory Service
How do I enable access to the AWS Management Console for AWS Directory Service users?
How do I use EC2 Systems Manager to join an instance to my AWS Directory Service domain?
How can I manage AWS Directory Service from a different EC2 Windows instance in my domain?
How do I enable DHCP options set for my AWS directory?
How do I resolve a Route 53 private hosted zone over a VPN using AWS Directory Service?
Amazon DynamoDB
How do I set up Time to Live (TTL) in DynamoDB?
How do I prepare my environment for working with the AWS CLI and Amazon DynamoDB on Amazon EC2?
When I run a Hive query against a DynamoDB table, my query takes a long time to complete
My table is throttled, but my consumed capacity units are still below my provisioned capacity units
AWS Educate
Why was my AWS Educate application rejected?
What's the difference between a regular AWS account and an AWS Educate Starter Account?
Why won't the credit code I received from AWS Educate work in the Billing console?
What's the status of my AWS Educate application?
As a member, how do I get support for the AWS Educate program?
How can I check to see if my institution is a member of AWS Educate?
AWS Elastic Beanstalk
How do I customize my Elastic Beanstalk environment using .ebextensions?
How can I use T2 Unlimited instances with Elastic Beanstalk for Linux?
How can I use T2 Unlimited instances with Elastic Beanstalk for Windows?
How do I stop and restart my Elastic Beanstalk environment on a schedule?
How do I upload WordPress files larger than 2 MB with Amazon EC2?
How do I create a cron job on Amazon EC2 instances in an Elastic Beanstalk environment?
How do I deploy code from a CodeCommit repository to an Elastic Beanstalk environment?
Amazon Elastic Block Store (Amazon EBS)
How can I prevent my EBS volumes from being deleted when I terminate my EC2 instances?
How do I extend my Linux file system after increasing my EBS volume on my EC2 instance?
How can I list EBS volume or snapshot information for my EC2 instance by using the AWS CLI?
How can I share an encrypted Amazon EBS volume with another AWS account?
How do I expand the EBS root volume of my EC2 Linux instance?
How do I expand the Amazon EBS root volume of my Amazon EC2 Windows instance?
My EBS volume has a status of "error"
My EBS volume is stuck in the "attaching" state
How do I optimize the performance of my Amazon EBS volumes?
How do I optimize the performance of my Amazon EBS Provisioned IOPS volumes?
Amazon Elastic Compute Cloud (Amazon EC2)
How do I remove a terminated EC2 instance from my Auto Scaling group?
My EC2 instance in a private subnet can't connect to the Internet using a NAT gateway
How do I allow a domain user to access the SQL Server instance on an EC2 instance?
How can I get customized email notifications when my EC2 instance changes states?
Why did the CPU credit balance for my Amazon EC2 T2 instance suddenly drop?
How do I assign a custom primary private IP address to my Amazon EC2 instance?
How do I move my EC2 instance to another subnet, Availability Zone, or VPC?
How do I convert a .pem file into a .ppk, and vice versa, on Windows and Linux?
How can I log into my Amazon EC2 instance if I receive an error that the server refused our key?
How do I delete or terminate EC2 resources?
I’ve created an IAM role, and now I want to assign it to an EC2 instance
My Spot instance was terminated. Can I recover it?
How can I prevent my EBS volumes from being deleted when I terminate my EC2 instances?
How do I enable and configure enhanced networking on my EC2 instances?
How do I launch an EC2 instance from a custom Amazon Machine Image (AMI)?
How do I restore or recover a terminated EC2 instance?
How do I back up an instance store volume on my Amazon EC2 instance to Amazon EBS?
How do I migrate a Dedicated Host or Dedicated Instance to another Dedicated Host?
How do I create an AMI that is based on my EBS-backed EC2 instance?
How do I create and copy an Amazon Machine Image (AMI) from one AWS Region to another?
What are Elastic IP addresses, and how do I use them?
How do I configure a secondary private IP address for my Amazon EC2 instance?
How do I create an EBS volume from a snapshot?
How do I use AWS VM Import/Export to create an EC2 instance based on my on-premises server?
What's the difference between instance store and EBS?
How do I share an Amazon Machine Image (AMI) privately with another AWS account?
How do I protect my data against accidental EC2 instance termination?
How do I stop and start Amazon EC2 instances at regular intervals using Lambda?
What should I do if my EC2 instance is no longer responding?
How do I transfer an Amazon EC2 instance to a different AWS account?
Why can't I find an EC2 instance on my account?
An instance I terminated appears to have re-launched
How do I remove the throttle on port 25 from my EC2 instance?
My instance is unreachable, and is failing one or both of its status checks
I want to migrate instances between my local virtualization environment and Amazon EC2
My Amazon EC2 instance is scheduled for retirement. What do I need to know?
EC2 Linux
How do I get more CPU and memory for my EC2 Linux instance?
What happens during an EC2 scheduled maintenance event and what preventative actions can I take?
How can I log my EC2 Linux user-data and then ship it to the console logs?
How can I make my secondary network interface work in my Ubuntu EC2 instance?
How do I allocate memory to work as swap space in an Amazon EC2 instance by using a swap file?
How do I enable a password login instead of a key pair when logging into my EC2 instance using SSH?
How do I manage the clock source for EC2 instances running Linux?
How do I install Systems Manager Agent (SSM Agent) on an Amazon EC2 Linux instance at launch?
Why is my Linux instance not booting after I changed its type to C5 or M5?
How can I improve the CPU performance of my Amazon EC2 Linux instances?
How do I add new user accounts with SSH access to my Amazon EC2 Linux instance?
How can I give a user permissions to connect to my EC2 Linux instance using SSH?
How do I troubleshoot problems connecting to my Amazon EC2 Linux instance using SSH?
How do I recover access to my EC2 instances if I've lost my SSH key pair?
How can I avoid DNS resolution failures with EC2 Linux?
How do I assign a static hostname to a private Amazon EC2 instance running Ubuntu Linux?
How do I assign a static hostname to a private Amazon EC2 instance running RHEL 7 or Centos 7?
How do I assign a static hostname to a private Amazon EC2 instance running SUSE Linux?
Why won't the Elastic Network Adapter work on an EC2 instance that's running SLES 12 SP1?
How do I set or change the root password for my EC2 Linux instance?
How can I create and connect to an Amazon Linux EC2 instance?
How do I benchmark network throughput between Amazon EC2 Linux instances in the same VPC?
How do I tune memory allocation for an Apache web server running on an Amazon EC2 Linux instance?
Why does my R4 EC2 instance running RHEL 7 show less RAM than was allocated by Xen?
EC2 Windows
How do I get more CPU and memory for my EC2 Windows instance?
How do I diagnose high CPU utilization on an EC2 Windows instance?
How can I find out if the CPU on my T2 or T3 EC2 Windows instance is being throttled?
How do I create a SQL Server Always On availability group cluster in the AWS Cloud?
How do I configure an EC2 Windows instance to allow file downloads using Internet Explorer?
How can I use Sysprep to create and install custom reusable Windows AMIs?
How do I attach and use an elastic GPU with my Windows EC2 instance?
How can I troubleshoot issues with my EC2 Windows instance by using the EC2Rescue tool?
How can I upgrade my EC2 Windows Server instance OS to a newer version?
How can I restore a corrupt registry on my EC2 Windows instance?
Why can't I see my secondary volumes when I launch a new EC2 Windows Server 2016 instance?
Do I need to set a static IP address for a Windows EC2 instance?
How do I publicly host my website on an EC2 Windows instance using IIS?
How do I host multiple public websites using IIS on the same EC2 Windows Server instance?
How do I upgrade the PV drivers for my Amazon EC2 instance that is running Windows?
How do I troubleshoot Remote Desktop connection issues to my Amazon EC2 Windows instance?
How can I replace corrupt or missing network drivers on my EC2 Windows instance?
How do I install .NET Framework 3.5 on an EC2 Windows instance that doesn't have internet access?
How do I create an Amazon Machine Image (AMI) from an EBS-backed Windows instance?
How do I attach an EBS volume to a running Windows EC2 instance?
How do I retrieve my Windows administrator password after launching an instance?
I accidentally disabled network connectivity to my EC2 instance running Windows-- how do I fix it?
How do I upgrade the EC2Config service on an EC2 instance running Windows?
How do I manually install the AWS CLI on Windows?
How can I improve networking performance in EC2 Windows instances and follow best practices?
How do I capture a screenshot of an unreachable Amazon EC2 Windows instance for troubleshooting?
How do I launch a Windows instance that will be covered under the Free Tier promotion?
How do I benchmark network throughput on an Amazon EC2 Windows instance?
How can I reset the administrator password on a Windows Server instance in Amazon EC2?
Windows activation failed on my Microsoft Windows Server instance in Amazon EC2
Why does my Amazon EC2 Windows instance generate a "Waiting for the metadata service" error?
Amazon Elastic Container Service (Amazon ECS)
How do I use time-based scaling in Amazon ECS?
How can I avoid putting tasks on Amazon ECS container instances that do not have enough disk space?
How does Amazon ECS allocate memory to tasks?
How can I create an Application Load Balancer and register ECS tasks automatically?
How do I set up dynamic port mapping for Amazon ECS?
How do I increase the default 10-GiB storage limit with Docker container volumes for Amazon ECS?
How do I set up an HTTP proxy for Docker and the Amazon ECS agent in Enterprise Linux?
How do I enable Docker debug mode with user data when I boot AMIs optimized for Amazon ECS?
How do I troubleshoot unhealthy Application Load Balancer health checks in Amazon ECS?
How do I enable automated Docker container and image cleanup in Amazon ECS?
How do I collect logs from my Amazon ECS container instance automatically?
Why are my Amazon ECS container instances with Amazon Linux 1 AMIs disconnected?
How can I grant access to a secondary account to pull or push images in my ECR repository?
How can I update my private repository credentials on an Amazon ECS container agent?
Why is the Amazon ECS container instance that I terminated still registered with its cluster?
How can I create a Docker volume using Amazon EFS in Amazon ECS?
How do I troubleshoot my container logs for Amazon ECS or Amazon EKS?
How can I allow the tasks in my Amazon ECS services to communicate with each other?
How do I launch Amazon ECS-optimized AMIs?
How can I configure IAM task roles in Amazon ECS to avoid "Access Denied" errors?
How can I resolve the Amazon ECR error "CannotPullContainerError: API error" in Amazon ECS?
How do I create or update a lifecycle policy rule in Amazon ECR for Amazon ECS?
How do I change my container instance type in Amazon ECS?
Why are my Amazon ECS container instances with Amazon Linux 2 AMIs disconnected?
How do I allow Amazon ECS tasks to pull images from an Amazon ECR image repository?
How do I troubleshoot issues with containers exiting in my Amazon ECS tasks?
How can I pass secrets or sensitive information securely to containers in an Amazon ECS task?
How can I get my Amazon ECS container instance to register with my cluster in a private subnet?
How do I connect my Amazon RDS database to my Amazon ECS tasks?
Amazon Elastic Container Service for Kubernetes (Amazon EKS)
How do I terminate HTTPS traffic on Amazon EKS workloads with ACM?
How do I set up Kubernetes Metrics Server and Horizontal Pod Autoscaler on Amazon EKS?
How do I set up a Kubernetes dashboard on an Amazon EKS cluster?
How do I provide access to other users and roles after cluster creation in Amazon EKS?