Operations | Monitoring | ITSM | DevOps | Cloud

Security logs are the quiet sentinels of your Linux systems, recording critical information that can mean the difference between detecting an intrusion and discovering a breach months too late. For most DevOps professionals and system administrators, these logs contain valuable insights that often go untapped. While they're essential for compliance, their real value lies in providing visibility into your system's security posture and operational health.

If you want a secure, efficient, and compliant network, network configuration management is a must. Whether managing a small network or being responsible for a large enterprise system, having the right solution can make all the difference. Network configuration management tools provide valuable insights into devices on your network, and they can help quickly restore previous configurations in the event of a failure, misconfiguration, or security incident. What is network configuration management?

Troubleshooting failed cron jobs without proper logging can be frustrating. Ubuntu cron logs record the execution of scheduled tasks, helping you identify what's working and what isn't. This guide covers what engineers need to know about Ubuntu cron logs – from finding them to analyzing their contents and setting up effective monitoring solutions.

Implementing observability in Angular applications presents unique challenges. Understanding how users experience your application and identifying performance bottlenecks requires specialized tools and approaches. This guide covers implementing OpenTelemetry in Angular applications, with practical code examples for instrumentation, data collection, and integration with observability backends.

Monitoring complex PHP applications can be challenging. When systems span multiple services and environments, traditional logging approaches often fall short. OpenTelemetry offers a solution - an open-source, vendor-neutral framework that standardizes how we collect and export telemetry data. This guide covers practical implementation steps for DevOps engineers working with PHP applications.

When Solr performance degrades, everyone notices - except maybe your monitoring system. The right metrics can alert you to problems before your users start complaining. This guide walks through the essential Solr metrics that matter for production deployments.

Choosing the right observability setup isn’t just a checkbox—it affects how quickly you can detect issues, debug them, and keep your systems reliable. CloudWatch and OpenTelemetry take different paths to that goal: one is a managed service tightly coupled with AWS, the other a flexible, open-source framework that's becoming a go-to in modern monitoring stacks.

Message queues quietly power a lot of what happens behind the scenes in distributed systems. RabbitMQ is no exception—when it’s working, you don’t notice it. But when it’s not, things break in ways that are hard to trace. This guide walks through what you need to monitor in RabbitMQ, how to set it up, and how to troubleshoot when things go wrong—so you’re not stuck guessing when messages go missing.

When your MongoDB database slows down, it affects your entire application stack. Performance issues can range from minor inconveniences to major outages, making a solid understanding of MongoDB metrics essential for any DevOps engineer. This guide covers the key performance metrics you need to monitor in MongoDB, how to interpret what you're seeing, and practical steps to resolve common issues.