Category: How-To

Multi-factor authentication (MFA) provides an additional layer of security for sensitive API calls, such as terminating HAQM EC2 instances or deleting important objects stored in an HAQM S3 bucket. In some cases, you may want to require users to authenticate with an MFA code before performing specific API requests, and by using AWS Identity and […]

Web and application users and organizations have expressed a growing desire to conduct most of their HTTP communication securely by using HTTPS. At its 2016 Worldwide Developers Conference, Apple announced that starting in January 2017, apps submitted to its App Store will be required to support App Transport Security (ATS). ATS requires all connections to […]

August 31, 2021: AWS KMS is replacing the term customer master key (CMK) with AWS KMS key and KMS key. The concept has not changed. To prevent breaking changes, AWS KMS is keeping some variations of this term. More info. An HAQM Machine Image (AMI) provides the information required to launch an instance (a virtual […]

HAQM CloudWatch Events enables you to react selectively to events in the cloud as well as in your applications. Specifically, you can create CloudWatch Events rules that match event patterns, and take actions in response to those patterns. CloudWatch Events lets you process both AWS-provided events and custom events (those that you create and inject […]

A hardware security module (HSM) is a hardware device designed with the security of your data and cryptographic key material in mind. It is tamper-resistant hardware that prevents unauthorized users from attempting to pry open the device, plug any extra devices in to access data or keys such as subtokens, or damage the outside housing. […]

You can use AWS Identity and Access Management (IAM) roles to grant access to resources in your AWS account, another AWS account you own, or a third-party account. For example, you may have an AWS account used for production resources and a separate AWS account for development resources. Throughout this post, I will refer to […]

Note from July 4, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   AWS WAF is a web application firewall that integrates closely with HAQM CloudFront (AWS’s content delivery network [CDN]). AWS WAF gives you control to allow or block […]

Identity federation enables your enterprise users (such as Active Directory users) to access the AWS Management Console via single sign-on (SSO) by using their existing credentials. In Security Assertion Markup Language (SAML) 2.0, RelayState is an optional parameter that identifies a specified destination URL your users will access after signing in with SSO. When using […]

There are many use cases to prevent uploads of unencrypted objects to an HAQM S3 bucket, but the underlying objective is to protect the confidentiality and integrity of the objects stored in that bucket. AWS provides several services that help make this process easier, such as AWS Identity and Access Management (IAM) and AWS Key […]

A bastion host is a server whose purpose is to provide access to a private network from an external network, such as the Internet. Because of its exposure to potential attack, a bastion host must minimize the chances of penetration. For example, you can use a bastion host to mitigate the risk of allowing SSH […]