Access control is a security mechanism that regulates who has access to sensitive data, resources, and systems. It ensures that only authorized users can access sensitive data and activities while keeping unauthorized users out. Access control is critical for protecting sensitive data such as personally identifiable information (PII), financial information, and intellectual property.
Securing sensitive data is crucial for any application, but managing this data can be complex and error-prone. Docker secrets provide a reliable and secure way to handle sensitive information like passwords, API keys, and certificates in your Docker environment. In this introductory guide, we’ll explore what Docker secrets are, how to use them with practical examples, and share some best practices to help you safeguard your sensitive data effectively.
As a developer, triage duty week was often the worst week of my month. Anytime a bug was reported, I’d search for the right environment, wander through logs, pray there was an associated stack trace, use my mental mapping of our code base, and route bugs to the right teams. Developers on triage rotation need to ensure bugs are routed to the correct team along with adequate information to help the team investigate the bug.
Interrupts, softirqs, and softnet are all critical parts of the Linux kernel that can impact system performance. In this blog post, we'll explore their usefulness, and discuss how to monitor them using Netdata for both bare-metal servers and VMs.
Tracking incident metrics can help you discover patterns in the causes and costs of incidents and help you understand brittle parts of your organization. We've seen them help teams zero in on things like: But it can be intimidating to get started. Do you really need metrics if you're a small team or just beginning to formalize your incident management program? I say yes. The key is to start with something manageable and grow.
Swap memory, also known as virtual memory, is a space on a hard disk that is used to supplement the physical memory (RAM) of a computer. The swap space is used when the system runs out of physical memory, and it moves less frequently accessed data from RAM to the hard disk, freeing up space in RAM for more frequently accessed data. But should swap memory be enabled on production systems and cloud-provided virtual machines (VMs)? Let's explore the pros and cons.
Context switching is the process of switching the CPU from one process, task or thread to another. In a multitasking operating system, such as Linux, the CPU has to switch between multiple processes or threads in order to keep the system running smoothly. This is necessary because each CPU core without hyperthreading can only execute one process or thread at a time.
As a system administrator, understanding how your Linux system's CPU is being utilized is crucial for identifying bottlenecks and optimizing performance. In this blog post, we'll dive deep into the world of Linux CPU consumption, load, and pressure, and discuss how to use these metrics effectively to identify issues and improve your system's performance.
