This article introduces AWS Systems Manager's State Manager feature, demonstrating how to use Associations to continuously maintain the desired state of EC2 and implement automated tasks such as regular password rotation.

Building on the Systems Manager Session Manager setup, this guide covers how to run commands on EC2 instances using Run Command.

Following the Systems Manager Session Manager setup, this guide covers Patch Manager to automatically scan and install OS patches on EC2 instances on a schedule.

This guide walks through the core concepts and setup steps for AWS Systems Manager, so you can securely manage EC2 instances without opening SSH ports.

This article introduces AWS Console Switch Role for cross-account access, and shows how to configure Trust Relationship and Policy for safer daily operations.

Deconstructing Policy and Trust Relationship: the division of responsibility in IAM Role

S3 Vector Bucket Hands-On: Turn the Latest Lingerie Catalog into a Searchable Vector Knowledge Base with Amazon Nova

Should a database primary key use auto increment, UUID, or a natural key? This article compares the trade-offs from performance, security, and scalability perspectives.

Learn how to configure IRSA in AWS EKS so Pods can assume IAM Roles through Kubernetes Service Accounts and securely access S3 and Secrets Manager without long-lived AWS credentials.

A practical guide to handling date and time in Java, from the legacy Date, Calendar, and SimpleDateFormat APIs to Java 8 java.time, Instant, LocalDate, and ZonedDateTime.