Grafana Loki is a horizontally scalable, highly available log aggregation system designed to be cost-effective by indexing only metadata labels rather than full log content. Promtail is its companion agent that tails log files and ships them to Loki. Compared to the ELK stack, Loki is significantly lighter on resources, making it an excellent choice […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure ssh keys for github both straightforward and auditable. This tutorial covers the complete procedure for how to Configure SSH Keys for GitHub on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]
Graylog is an open-source centralised log management platform that collects, indexes, and analyses log data from across your infrastructure in one place. On RHEL 9, deploying Graylog 5.x gives operations teams powerful search, alerting, and dashboarding capabilities without relying on cloud-based log services. Graylog depends on MongoDB for metadata storage and OpenSearch (or Elasticsearch) for […]
Introduction This tutorial demonstrates how to Install Git 2.45 on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories enabled. […]
Without a log rotation strategy, application log files will grow unbounded until they fill your disk and bring services down. Logrotate is the standard RHEL utility that automates log file rotation, compression, and cleanup on a scheduled basis with no daemon process required. It runs daily via a cron job and processes configuration rules you […]
Introduction How to Sign Container Images with cosign on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]
Introduction This tutorial demonstrates how to Scan Container Images with Trivy on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream […]
Netdata is a lightweight, real-time performance monitoring agent that provides per-second metrics with zero configuration for hundreds of applications and services out of the box. Unlike traditional monitoring solutions that poll at 15- or 60-second intervals, Netdata collects data every second and renders interactive charts in its built-in web dashboard instantly. It is designed to […]
Introduction This tutorial demonstrates how to Migrate Docker Compose to Podman Quadlet on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default […]
Zabbix is a mature, enterprise-grade open-source monitoring solution capable of tracking thousands of servers, virtual machines, network devices, and applications from a single web interface. It supports agent-based and agentless monitoring, flexible alerting, and detailed graphing out of the box. This tutorial installs Zabbix 6.4 on RHEL 9 using MySQL (MariaDB) as the backend database […]
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