Introduction Setting up add a sudo user on centos stream 10 on a CentOS Stream 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Add a Sudo User on CentOS Stream 10, with all the commands you need, the SELinux and firewalld considerations to […]
Introduction Setting up set up ceph on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Ceph on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]
Introduction Setting up configure dkim and spf on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure DKIM and SPF on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to […]
Introduction Setting up set up mail relay with postfix on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Mail Relay with Postfix on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]
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 […]
Introduction How to Monitor Docker with cAdvisor on Oracle Linux 10 on Oracle Linux 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 […]
Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying configure concourse ci on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Concourse CI on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]
š High ā± 5ā30 min Last verified: 9 August 2025 Affected versions: Oracle Linux 10 š ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
Introduction How to Monitor MySQL with PMM on Oracle Linux 10 on Oracle Linux 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 […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying tune postgresql performance both straightforward and auditable. This tutorial covers the complete procedure for how to Tune PostgreSQL Performance on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites The procedure assumes […]
