We all know that health checks are a very useful tool for making sure that AWS services such as AWS ELB and Amazon Route 53 know the state of their targets before forwarding traffic to them. In this section, we will take a look at ELB health checks and Route 53 health checks, and compare them with one another.
Interface Endpoint Gateway Endpoint Gateway Load Balancer Endpoint • An elastic network interface with a private IP address that serves as an entry point for traffic destined to a supported AWS service, endpoint service, or AWS Marketplace service. • For each interface endpoint, you can choose only one subnet per Availability Zone. Endpoints are regional, which means they are only usable within the same region they are created in. • Since interface endpoints use ENIs, they also use security groups to control traffic. • Can be accessed through AWS VPN connections or AWS Direct Connect connections, through intra-region VPC peering [...]
Amazon EFS Amazon FSx for Windows File Server Amazon FSx for Lustre • Amazon EFS is a serverless, scalable, high-performance file system in the cloud. • EFS file systems can be accessed by Amazon EC2 Linux instances, Amazon ECS, Amazon EKS, AWS Fargate, and AWS Lambda functions via a file system interface such as NFS protocol. • Amazon EFS supports file system access semantics such as strong consistency and file locking. • EFS file systems can automatically scale in storage to handle petabytes of data. With Bursting mode, the throughput available to a file system scales as a file system [...]
Wait Conditions, as the name suggests, is a tool used to control the order of creation of the AWS resources in a CloudFormation stack. It can pause the creation of a stack and wait for a signal to ensure that specific resources and configurations were properly launched before resuming the stack creation process. Use cases: For example, you want to make sure that a specific domain name is working before you can conclude that your application is indeed up and running. Or perhaps, you want to make sure that a particular stack resource can access an external API endpoint (or [...]
AWS Config is a service that tracks changes made to resources associated with an AWS account. This service can give you a detailed view of the resource configuration’s timeline so you can go back in time and identify when and what resource the change was made into. It also enables you to determine the overall compliance against the rules and configurations specified in your guidelines. This simplifies compliance auditing, security analysis, change management, and operational troubleshooting. Some Use Cases For AWS Config: Determining if CloudTrail is enabled on all regions. Checking if security groups have SSH port open from non-authorized [...]
AWS Config allows you to set “rules” to evaluate configuration settings on your AWS resources. The result of these rule evaluations are then displayed on the AWS Config web console. You can control the frequency of rule evaluations by AWS Config by specifying a trigger. A trigger refers to the method of evaluation for your config rules. There are two types of triggers to select from when creating a rule. 1. Configuration Changes When “configuration changes” is enabled, AWS Config will evaluate the config rule when specific resources are created, changed, or deleted. In simple terms, as the name implies, [...]
AWS Systems Manager allows your organization to monitor and control their infrastructure on AWS and on-premises environments. Systems Manager provides a unified interface to which you can monitor thousands of servers and services of AWS. Essentially, Systems Manager simplifies resource and application management, shortens the time to detect and resolve operational problems, and makes it easy to operate and manage your infrastructure securely at scale. The following are the capabilities of AWS Systems Manager for your Hybrid Environment: Centrally define the configuration options and policies for your managed instances. Automate or schedule a variety of maintenance and deployment tasks. Use [...]
Even before the Internet, the security, privacy, and integrity of information have always been the top concern of institutions like banks, hospitals, and universities. Nobody wants their personal information (name, address, credit card number, etc.) to be exposed in public for anyone to use. Imagine signing up on your favorite social media website, and after a few days, somewhere on the globe has been using your profile and pretending to be you without you knowing! Or maybe you’ve been using your credit card for shopping online and suddenly, your bank is sending you email reports for fraudulent activities on your [...]
A fully managed document analysis service for detecting and extracting information from scanned documents. Returns extracted data as key-value pairs (e.g., Name: John Doe) Supports virtually any type of documents Can detect text written in Standard English alphabet and ASCII symbols. Common Use Cases: Building search indexes Importing documents into a business application Building automated document processing solutions Text extraction for Natural Language Processing (NLP) Applications Maintaining document compliance Concepts Amazon Textract returns a confidence score for each identified element, which indicates the probability that a given prediction is correct. A low-confidence score can be rerouted to Amazon Augmented AI [...]
Amazon A2I is a service that helps you easily integrate human reviews in a machine learning workflow. Simplifies managing a large number of human reviewers at scale. Has direct integration with Amazon Textract and Amazon Rekognition Common Use Cases: Content Moderation where human oversight is required to judge uncertain results from a machine learning model. Manual reviews of low confidence predictions due to documents that are scanned poorly or contain bad handwriting. Concepts Task type Type of task to be reviewed. Available task types Key-value pairs extracted by Amazon Textract Unsafe content flagged by Amazon Rekognition Custom machine learning workflows [...]
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