Category: AWS
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“AWS EC2: Unable to Connect,” a Security Group Checklist for Developers
In this article, I address common issues with AWS EC2 connectivity, particularly focusing on misconfigured security group inbound rules. It outlines potential pitfalls such as incorrect protocol, source IP mismatches, and the absence of inbound rules. Additional considerations include instance firewalls and service status. A troubleshooting checklist is provided for quicker connection resolution.
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AWS API Gateway With A Proxy Lambda and Binary Content
Recently, I’ve decided to create a serverless web application. I’ve published my Spring Boot application into AWS Lambda. The thing is that in front of my AWS Lambda, I’ve used AWS API Gateway, and AWS API Gateway pre-format the payload when sending it to the Lambda.
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Authenticate Your Spring Application With AWS Cognito
Recently, I needed to create an authentication system for one of my applications. But I need to create it quickly and securely. I may use a JWT with email and password, but people are lazy creating new passwords. So, I choose for a social Sign-In with AWS Cognito.
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Custom domain For Backend And Frontend In AWS
In this article, I describe how to configure AWS CloudFront to use a custom domain name for my distributions.
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Router and React Application in AWS S3
In this article, I describe how to solve the problem when using React Router in a deployed application in AWS S3. To solve this situation, I need to configure AWS CloudFront with redirections in the error pages.
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Security In The Cloud: 7 AWS Best Practices
In this article I describe 7 AWS best practices to ensure the security in the Cloud. I explain how to configure the VPCs, the IAMs and the naming strategy for any service.
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Deploy A Spring Boot Application in AWS Lambda
In the article of today, I’m gonna explain how to deploy a Spring Boot application in AWS Lambda. I want to deploy a complete web application into a serverless platform. The difference is that I want to create several endpoints in my Spring Boot application. And I want to map them all to a single…
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Deploy a React Frontend to AWS S3
In this article I will go step by step to deploy a React frontend application to AWS S3. From creating the S3 Bucket to deploy the React project.
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Exploring the Benefits and Challenges of AWS Adoption
Some time ago, I had to migrate a complete website from an on-premise architecture to a AWS architecture. We found some benefits and a lot of challenges as the price, the knowledge and the customization.
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10 AWS Services Every Developer Should Know About
Here are the key AWS services necessary when starting an application. These include EC2 for renting server time and customization, S3 for storing files globally, RDS for managing dynamic data, Secret Manager for secure password management, Lambda for handling fluctuating application loads, SQS for managing asynchronous events, ECS for microservices architecture, VPC for creating private…
The Dev World - Sergio Lema 