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AWS Cheat Sheets

Home » AWS Cheat Sheets » Page 11

Increasing MTU for Your EC2 Instance

2023-06-05T02:27:26+00:00

What is MTU? MTU (maximum transmission unit) is the maximum size of one packet of data that can be transferred in a network. The default MTU size for Ethernet devices is 1500 bytes. This packet size contains the actual payload data as well as network overhead information needed for communication within the network. All AWS EC2 instances support the default MTU size. But many current instance sizes support 9001 MTU, also referred to as jumbo frames. Enabling jumbo frames for supported EC2 instances can be beneficial because it improves network efficiency by allowing your instance to send fewer packets with [...]

Increasing MTU for Your EC2 Instance2023-06-05T02:27:26+00:00

Amazon Cognito User Pools vs Identity Pools

2023-06-23T05:00:39+00:00

Bookmarks Amazon Cognito User Pools Amazon Cognito Identity Pools With the proliferation of smartphones in our connected world, more and more developers are quickly deploying their applications on the cloud. One of the first challenges in developing applications is allowing users to log in and authenticate on your applications. There are multiple stages involved in user verification and most of these are not visible from the end-user. AWS provides an easy solution for this situation. User Identity verification is at the core of Amazon Cognito. It provides solutions for three key areas of user identification:  [...]

Amazon Cognito User Pools vs Identity Pools2023-06-23T05:00:39+00:00

AWS Transit Gateway

2023-06-23T06:56:04+00:00

Bookmarks Features Validate Your Knowledge AWS Transit Gateway Cheat Sheet A networking service that uses a hub and spoke model to enable customers to connect their on-premises data centers and their Amazon Virtual Private Clouds (VPCs) to a single gateway. With this service, customers only have to create and manage a single connection from the central gateway into each on-premises data center, remote office, or VPC across your network. If a new VPC is created, it is automatically connected to the Transit Gateway and will also be available to every other network that is also [...]

AWS Transit Gateway2023-06-23T06:56:04+00:00

Resolve Route 53 Private Hosted Zones from an On-premises Network

2023-06-05T03:00:59+00:00

Route 53 Private Hosted Zones Amazon Route 53 DNS service supports Public Hosted Zones and Private Hosted Zones. Private Hosted Zones are useful when you want to use your private domain and have Route 53 respond to queries on that domain from resources within your VPC.  For example, if you host a database on an EC2 instance on a private subnet, you can create a Route 53 record set (ex: privatedb.tutorialsdojo.com) for that database instance on your Private Hosted Zone to allow other EC2 instances to resolve the domain name.   But what if you have a VPN connection (or AWS [...]

Resolve Route 53 Private Hosted Zones from an On-premises Network2023-06-05T03:00:59+00:00

Locking your Glacier Vault using the Amazon S3 Glacier API

2023-06-05T03:07:24+00:00

What is Amazon S3 Glacier Vault Lock A Glacier Vault can be described as a container for your archived objects in S3 Glacier. To begin using Amazon S3 Glacier, you need a vault. Creating and deleting vaults can be easily done in the AWS Management Console, but interacting with them requires you to use the APIs. For example, let’s say you want to upload images or log files to your vault. To do so, you would either use the AWS CLI or write code that would upload these objects. Large corporations often have compliance requirements with how they store their [...]

Locking your Glacier Vault using the Amazon S3 Glacier API2023-06-05T03:07:24+00:00

Amazon S3 Bucket Policies for VPC Endpoints

2023-06-05T03:11:03+00:00

Amazon S3 and Amazon VPC Relationship Amazon S3 is a versatile object storage solution that boasts virtually unlimited storage capacity. You can expect that your files will be durably stored in S3 given that AWS provides an SLA for this service. When creating your S3 bucket, AWS provides you with a unique bucket URL that you can use to access your S3 bucket directly from the public internet, if you have public access enabled.  Amazon S3 is a service that is not used within a VPC. This means that traffic does not pass through VPC resources such as internet gateways [...]

Amazon S3 Bucket Policies for VPC Endpoints2023-06-05T03:11:03+00:00

AWS Fargate

2024-01-18T06:54:50+00:00

Bookmarks How It Works Use Case Network Compliance Pricing AWS Fargate Cheat Sheet A serverless compute engine for containers that works with both Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS). With Fargate, no manual provisioning, patching, cluster capacity management, or any infrastructure management required.   How It Works Use Case Launching containers without having to provision or manage EC2 instances. If you want a managed service for container cluster management. Configurations Amazon ECS task definitions for Fargate require that you specify CPU and memory at the task level [...]

AWS Fargate2024-01-18T06:54:50+00:00

Amazon Detective

2023-06-23T07:02:45+00:00

Bookmarks Concepts Limits Common Use Cases Amazon Detective Cheat Sheet The service automatically collects log data from your AWS resources and uses machine learning, statistical analysis, and graph theory to build a linked set of data that enables you to easily conduct faster and more efficient security investigations.  Can be integrated with AWS security services like Amazon GuardDuty, Amazon Macie, and AWS Security Hub as well as partner security products to identify potential security issues, or findings. Amazon Detective can analyze trillions of events from multiple data sources such as VPC Flow Logs, AWS [...]

Amazon Detective2023-06-23T07:02:45+00:00

Customer Master Key (CMK) Policy Management in AWS KMS

2023-06-07T04:11:41+00:00

What is a Customer Master Key (CMK)? In security, a master key is what you use to encrypt all other encryption keys in your system. Customer master keys are logical representations of a master key. They are the primary resources in AWS KMS. The CMK contains the key material used to encrypt and decrypt data. It also contains metadata such as the key ID, creation date, description, and key state. You can start using AWS KMS through the web console or via API. There are two types of CMKs that you can create in AWS KMS: symmetric CMK and asymmetric [...]

Customer Master Key (CMK) Policy Management in AWS KMS2023-06-07T04:11:41+00:00

Working with Customer Master Keys (CMKs) using the AWS KMS API

2023-06-07T03:39:53+00:00

What is AWS Key Management Service? AWS Key Management Service (or KMS for short) is the service you use to securely store your encryption keys in AWS. If you need data encryption on your AWS resources, such as EBS volumes or RDS databases, you can use AWS KMS to simplify the process for you. You start using the service by requesting the creation of a customer master key or CMK. By default, AWS KMS creates the key material for your CMK. You also have the option of importing your own keys to AWS if you wish to. Note that during [...]

Working with Customer Master Keys (CMKs) using the AWS KMS API2023-06-07T03:39:53+00:00

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