Tech Blogs - Tutorials Dojo

Automating Publications with Claude, Canva, and n8n
Every business that runs a social media page knows the same repetitive cycle. Pick a topic. Write a caption. Design a graphic. Post it on schedule. Repeat tomorrow. Multiply that by every campaign, every seasonal push, every recurring content series, and it becomes a real operational cost, not just [...]
AI Ethics Explained: How to Use Artificial Intelligence Responsibly
Have you ever used ChatGPT to help explain a difficult topic? Maybe you've asked Gemini to summarize a lengthy article, generate ideas for a school project, write an email, or even use Claude for brainstorming concepts. If you're a student, you've probably wondered: "Is it okay to use AI [...]
Fine-tuning an LLM for natural Tagalog speech
If you're an ML engineer or a technical lead planning to pre-train a large language model (LLM) for Tagalog or Taglish, how do you start? In this article, we walk through the process of defining a target voice, building a data pipeline, running a QLoRA training experiment, and evaluating [...]
Building Diffender: A Serverless AI Security Reviewer for GitHub Pull Requests with Amazon Bedrock
A pull request can pass its tests, satisfy its acceptance criteria, and still expose a production credential in one line of code. Diffender is an Amazon Bedrock pull request reviewer built to identify that kind of risk before the change reaches the main branch. However, human review remains essential, [...]
AWS Certification Maintenance: Recertify Without an Exam
Many AWS-certified professionals face the same challenge every few years: preparing for another certification exam while balancing work, projects, and personal commitments. While certifications remain a valuable way to validate cloud expertise, the traditional recertification process can be time-consuming and stressful. To address this, AWS has introduced a new [...]
CCDV-F Claude Certified Developer Foundations Study Guide
Bookmarks CCDV-F Exam Domains CCDV-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Developer – Foundations (CCDV-F) certification is designed for technical professionals who build, [...]
CCAR-P Claude Certified Architect Professional Study Guide
Bookmarks CCAR-P Exam Domains CCAR-P Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Architect – Professional (CCAR-P) certification is designed for experienced professionals who build [...]
CCAO-F Claude Certified Associate Foundations Study Guide
Bookmarks CCAO-F Exam Domains CCAO-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Associate – Foundations (CCAO-F) certification is designed for professionals who use Claude [...]
CI/CD Crash Course: From Junior to Senior Developer
Continuous Integration and Continuous Delivery/Deployment (CI/CD) is the backbone of modern software teams. It's not just a buzzword for your resume — it's the automated pipeline that takes code from "it works on my machine" to "it works in production, reliably, every time." Understanding CI/CD deeply, not just using [...]
Everything You Need to Know About Harness Engineering
AI agents can now write code, browse the web, and run for hours without a human watching. Ask one to build a feature, and it might open ten files and call five tools. It can make a hundred small decisions before it ever shows you a result. That is [...]

Efficient Log Monitoring: Filter CloudWatch Logs with Metric Filters and Get SNS Notifications

Monitoring logs efficiently is essential in today's fast-paced and data-centric world, especially for cloud-based applications and services. Amazon Web Services (AWS) provides a robust solution called CloudWatch Logs, which enables centralized log monitoring, analysis, and management. One of the key functionalities of CloudWatch Logs is the ability to filter logs effectively using metric filters and receive notifications through Amazon Simple Notification Service (SNS). This combination empowers users to streamline log analysis, identify critical events, [...]

Adding Logs Insights Queries To Your CloudWatch Dashboard

Introduction Widgets are the building blocks of a CloudWatch dashboard. They come in various types that can help you interpret metrics in a way that's not only meaningful but also tailored to your specific needs. While they are typically used for visualizing metrics, widgets can also display the results of Logs Insights queries on your dashboard. Logs Insights queries as a checklist You can save Logs Insights queries to create a "troubleshooting checklist" for [...]

Cost Allocation Tags on Amazon S3 Buckets and Using AWS Cost Explorer

Amazon Simple Storage Service (Amazon S3) is one of the most popular cloud-based storage solutions by AWS. Amazon S3 offers flexibility for various applications and is widely used across multiple use cases as it offers durability, availability, and cost-effectiveness. It allows users to store, manage, and securely access petabyte-scale data from the AWS cloud. By default, Amazon Billing shows how much data and cost is incurred for the cumulative storage cost and usage of [...]

Automating Amazon GuardDuty Notifications through Email Alerts

Amazon GuardDuty is a powerful security tool that helps to detect suspicious activities and threats in your AWS environment. It uses intelligent threat detection and provides you with a detailed view of potential security issues across your AWS account. Amazon GuardDuty continuously monitors your AWS resources and generates findings based on various threat intelligence sources. This allows you to identify security vulnerabilities and take necessary actions to secure your environment. One of the key [...]

How to Setup Backup and Recovery in Azure

If you’re managing a cloud infrastructure, you understand that backups are created to safeguard critical data and ensure business continuity. In the event of a server failure, backups expedite the restoration of data and the prompt resumption of operations. It also allows you to revert to previous server states, which is helpful for version control and rollbacks. Additionally, backups are useful resources for testing, development, and creating replica environments. In Microsoft Azure, the dedicated [...]

Streamlining EBS Snapshot Management with Amazon Data Lifecycle Manager Automation

Amazon Elastic Block Store (EBS) snapshots are an essential part of managing data on Amazon Web Services (AWS). EBS snapshots are backups of your EBS volumes, which are stored in Amazon Simple Storage Service (S3). They are crucial for data protection and disaster recovery, but managing EBS snapshots can be time-consuming and complex. Fortunately, Amazon Data Lifecycle Manager (DLM) provides a solution to simplify EBS snapshot management. DLM is a service that automates the [...]

Enhancing S3 Bucket Security by Prohibiting Uploads of Unencrypted Objects

Amazon S3 is a widely used object storage service that allows users to store and retrieve large amounts of data. S3 is known for its scalability, durability, and cost-effectiveness, making it an ideal choice for many organizations. However, as with any cloud-based service, security is a crucial concern. One way to enhance the security of S3 buckets is by prohibiting the upload of unencrypted objects. In this article, we will explore why this is [...]

10 Years of AWS Certification: Is It Still Worth It to get AWS Certified this 2023?

10 years ago, on April 30 2013, Amazon Web Services launched its AWS Global Certification Program. The primary purpose of this program is to validate the necessary technical skills and knowledge required for building secure and reliable cloud-based applications using the AWS Cloud. Passing the AWS Certification exam means that you can prove your expertise and knowledge in AWS to your current employers or even to the prospective companies you wish to apply for. [...]

AWS Lambda: Synchronous vs Asynchronous Invocation

You can invoke a Lambda function in two ways. Synchronous Invocation The first one is called Synchronous invocation, which is the default mode. Synchronous invocation is pretty straightforward. When you invoke a function synchronously, AWS Lambda waits until the function is done processing, then returns the result. Let’s see how this works through the following example: The diagram illustrates a Lambda function-backed API that is managed by API Gateway. When API Gateway receives a [...]

Connecting your Lambda Function to a Private Database

If you want your Lambda function to interact with resources (e.g., RDS database, EC2 instance) inside a private subnet, you won't be able to do so by default. The reason for this is that Lambda functions live in an isolated and secured VPC managed by AWS. This is why when you create a Lambda function, you don’t go through any networking configurations (VPC, subnet, ENIs), unlike when creating EC2 instances. Also, you cannot establish [...]