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aws cheat sheet

Home » aws cheat sheet » Page 9

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

2024-08-29T01:45:49+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 Pools2024-08-29T01:45:49+00:00

AWS Transit Gateway

2025-12-26T16:30:19+00:00

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, you simply attach it to the Transit Gateway, making it available to every other connected network (subject to route table rules). Features [...]

AWS Transit Gateway2025-12-26T16:30:19+00:00

Locking your Glacier Vault using the Amazon S3 Glacier API

2025-02-25T12:22:16+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 API2025-02-25T12:22:16+00:00

Amazon Detective

2025-12-26T18:24:39+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. It 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. Overview & Data Sources Automatic Data Ingestion: Detective analyzes trillions of events from multiple data sources: [...]

Amazon Detective2025-12-26T18:24:39+00:00

AWS KMS Key Policy Management in AWS KMS

2024-07-11T12:32:27+00:00

What is an AWS KMS key? In security, a KMS key is what you use to encrypt all other encryption keys in your system. KMS key is a logical representation of a cryptographic key. They are the primary resources in AWS KMS. The AWS KMS Key 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 AWS KMS keys that you can create in AWS KMS: symmetric [...]

AWS KMS Key Policy Management in AWS KMS2024-07-11T12:32:27+00:00

Working with AWS KMS key using the AWS KMS API

2024-07-11T09:28:47+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 KMS key. By default, AWS KMS creates the key material for your KMS key. You also have the option of importing your own keys to AWS if you wish to. Note that during key rotation, [...]

Working with AWS KMS key using the AWS KMS API2024-07-11T09:28:47+00:00

AWS Resource Access Manager

2025-12-28T15:41:56+00:00

AWS Resource Access Manager Cheat Sheet AWS Resource Access Manager (AWS RAM) is a service that allows you to securely share AWS resources across accounts, organizational units (OUs), or your entire AWS Organization. It eliminates the need to duplicate resources in multiple accounts, simplifying management and maintaining security and consistency. Only the master account can enable sharing with AWS Organizations. The organization must be enabled for all features. RAM eliminates the need to create duplicate resources in multiple accounts. You can create resources centrally in a multi-account environment, and use RAM to share those resources across accounts in three simple [...]

AWS Resource Access Manager2025-12-28T15:41:56+00:00

AWS Certificate Manager

2025-12-26T19:30:21+00:00

Bookmarks Concepts Types of Certificates For Use With ACM ACM Private Certificate Authority Domain Verification for Certificates Pricing Validate Your Knowledge AWS Certificate Manager Cheat Sheet AWS Certificate Manager (ACM) is a service that lets you easily provision, manage, and deploy public and private SSL/TLS certificates for use with AWS services. It removes the manual process of purchasing, uploading, and renewing certificates. Public Certificates (Free): Secure public-facing websites (e.g., www.example.com). These are trusted by browsers by default. Private Certificates (Paid): Secure internal resources (e.g., database servers, internal APIs, IoT devices) within [...]

AWS Certificate Manager2025-12-26T19:30:21+00:00

Using the Secure String Parameter in Systems Manager Parameter Store

2024-07-10T08:42:49+00:00

What is AWS Systems Manager Parameter Store AWS Systems Manager Parameter Store helps you securely store and share key-value pairs across your AWS environment. It is one of the packages under AWS Systems Manager that helps you design a more robust and abstract infrastructure. With Parameter Store, you don’t have to hard code parameters nor save them in config files for application use. You can easily reference them in your applications and AWS resources using the unique parameter store key of those items.  Parameter Store supports a lot of use cases, from saving unencrypted plaintext to more sensitive information such [...]

Using the Secure String Parameter in Systems Manager Parameter Store2024-07-10T08:42:49+00:00

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