Monitoring

observability cost logs metrics traces a telemetry funnel

Observability Cost Guide: Proven Ways to Stop Waste

Observability cost is the fastest-growing line in most engineering budgets, and it grows for reasons nobody chose: debug logging left on after an incident, one label that multiplied a metric into forty thousand time series, a trace sampler set to keep everything, and a retention default nobody has read since the contract was signed. This guide separates the three signals and prices them properly, compares the pricing models vendors actually charge on, sets out benchmark ranges worth quoting in a budget conversation, works a full before-and-after model for a forty-service estate, and lists the controls that reduce spend without quietly removing the data you need at three in the morning.

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How to Set Up Software RAID with mdadm on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Prometheus and Grafana on Ubuntu 26.04

Prometheus is an open-source metrics collection and alerting system, while Grafana provides beautiful dashboards for visualising those metrics. Together they form the most popular open-source monitoring stack. This guide installs both on Ubuntu 26.04 LTS with Nginx and SSL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx installed A user […]

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How to Set Up Software RAID with mdadm on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Netdata on Ubuntu 26.04

Netdata is an open-source, real-time performance monitoring tool that provides per-second metrics for CPUs, RAM, disks, network, processes, and hundreds of applications out of the box. It requires zero configuration to get started. This guide installs Netdata on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]

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How to Set Up Software RAID with mdadm on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Zabbix 7 on Ubuntu 26.04

Zabbix 7 is an enterprise-grade open-source monitoring solution that collects metrics from servers, network devices, cloud services, and applications. It supports SNMP, JMX, IPMI, and custom monitoring scripts. This guide installs Zabbix 7 on Ubuntu 26.04 LTS with MySQL and Nginx. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with MySQL 9 […]

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How to Configure Unattended Upgrades on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Monitor System Resources on Ubuntu 26.04

Knowing how your server uses CPU, memory, disk, and network resources is essential for capacity planning and troubleshooting. Ubuntu 26.04 LTS comes with several built-in tools and supports popular third-party monitors. This guide covers the most useful commands and tools for resource monitoring. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server […]

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How to Configure Unattended Upgrades on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Monitor System Resources on Ubuntu 24.04

Knowing how your server uses CPU, memory, disk, and network is essential for capacity planning and troubleshooting. This guide covers the most useful monitoring commands and tools on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Quick Overview with top […]

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How to Set Up Software RAID with mdadm on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up the ELK Stack on Ubuntu 24.04

The ELK Stack (Elasticsearch, Logstash, Kibana) is the leading open-source log management and analytics platform. This guide installs ELK Stack 8.x on Ubuntu 24.04 LTS for centralised log collection and analysis. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Minimum 4 GB RAM (8 GB recommended) Java 21 installed A user […]

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How to Set Up Software RAID with mdadm on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Netdata on Ubuntu 24.04

Netdata is a real-time performance monitoring tool that collects thousands of metrics per second with near-zero overhead. It provides a beautiful web dashboard out of the box with no configuration required. This guide installs Netdata on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo […]

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