Monitoring your EC2 instances shouldn’t be complicated or exhausting. Yet, too often, engineers find themselves troubleshooting issues in the middle of the night, searching for the root cause of an unexpected failure. Whether you're managing a few instances or hundreds spread across multiple regions, effective EC2 monitoring helps you stay ahead of problems instead of constantly reacting to them. And if you've ever dealt with a critical alert at an inconvenient hour, you know how important that is.

Nginx error logs can be tough to decipher, even for experienced sysadmins and DevOps engineers. They hold valuable clues about what’s going wrong, but sorting through them can feel overwhelming. Understanding these logs doesn’t have to be a challenge. This guide breaks them down in a clear, practical way—so you can find the issues that matter and fix them with confidence.

When your Linux server starts acting up at 3 AM, you don't need a philosophy lesson—you need answers. Fast. That's where journalctl last comes in, the command-line equivalent of having a time machine for your system's events. If you've been piecing together log information like some digital detective with a cork board and string, it's time to upgrade your toolkit. Let's cut through the noise and get you the intel you need, when you need it.

Choosing between OpenTelemetry and Datadog isn't just another tool decision. It's about how you'll monitor your systems, troubleshoot issues, and ultimately keep your services running smoothly. If you've been tasked with figuring out which route to take, you're in the right place. Let's get started!

Some websites load in a snap, while others make you wonder if the internet is broken. The difference? Often, it comes down to how (and where) their content is served. A Content Delivery Network (CDN) helps by storing copies of your content in multiple locations worldwide, so users don’t have to wait for a distant server to respond. If you're on AWS, CloudFront is the built-in way to do this—helping speed things up while also handling security and traffic optimization.

Keeping track of your infrastructure is non-negotiable. Prometheus makes that easier by collecting metrics and alerting you when something’s off. It’s a powerful tool that helps you understand what’s happening under the hood, whether you’re running a small cluster or managing large-scale applications. In this guide, we’ll break down Prometheus functions—what they do, how they work, and why they matter for better observability. Let’s get into it.

Nginx is widely known for its high performance and reliability. However, just like any software running in production, it requires continuous monitoring to ensure smooth operation. Issues such as high latency, unexpected crashes, or overwhelming traffic spikes can lead to performance degradation or even complete outages. Therefore, implementing a robust monitoring strategy is crucial to maintaining the health and stability of your Nginx deployment.

If you’re reading this, chances are you’re already familiar with OpenTelemetry (OTel)—the open-source standard for collecting observability data. But what about OpenTelemetry agents? How do they work, and why do they matter? This guide unpacks everything you need to know about OTel agents—where they fit in your stack, how to set them up, and common pitfalls to watch out for. Let’s get into it.

OpenTelemetry is the go-to open-source standard for observability, but when it comes to tracking frontend performance and user interactions, things get a little tricky. Unlike backend services, browsers introduce challenges like CORS restrictions, asynchronous execution, and limited access to certain telemetry data. This guide covers everything you need to know about using OpenTelemetry in the browser, from setup to best practices, advanced configurations, and real-world debugging techniques.

If you've been working with Elasticsearch for a while, you’ll eventually run into a situation where you need to reindex your data. Maybe you’re changing mappings, upgrading versions, or restructuring your documents. That’s where the Elasticsearch Reindex API comes in. In this guide, we'll walk through everything you need to know about the Reindex API—what it is, how it works, common use cases, performance optimizations, and potential pitfalls. Let’s dive in.