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SRE Metrics: Availability

Understanding SRE metrics and how they impact your platform's availability are fundamentals of Site Reliability Engineering. How available is your website, service, or platform? What must you monitor and measure to ensure availability? How do you translate uptime into availability? This chart has numbers that every Site Reliability Engineer (SRE) should know.

Understanding Linux File System: A Comprehensive Guide to Common Directories

Welcome to an in-depth exploration of the Linux file system! In this comprehensive guide, we'll demystify the various directories found in a typical Linux distribution, explaining their purposes and functionalities. Whether you're a seasoned sysadmin or a curious newcomer, this article will enhance your understanding of the backbone of Linux's structure and operation.

Ping Command: A Comprehensive Guide to Network Connectivity Tests

The ping network test, a core utility since the 80s, plays a crucial role in confirming connectivity between IP-networked devices. In this guide, we'll delve into what the ping command is, how to run a ping network test, common IP addresses to ping, interpreting results, and troubleshooting errors.

PromQL Cheat Sheet: A Quick Guide to Prometheus Query Language

Prometheus is an open-source monitoring and alerting toolkit that has gained significant popularity in DevOps and systems monitoring. At the core of Prometheus lies PromQL (Prometheus Query Language), a powerful and flexible query language used to extract valuable insights from the collected metrics. In this guide, we will explore the basics of PromQL and provide query examples for an example use case.

PagerTree Broadcasts

PagerTree broadcasts are a great way to send mass messages to multiple teams or users (think of an all hands on deck situation). When using the broadcasts feature you can send one way messages and optionally request a response. PagerTree intelligent on-call alert routing gives teams flexible schedules, escalations, & reliable notifications via email, SMS, voice, chatbots, & smartphone app.