The perf tool is the Linux kernel’s built-in performance analysis framework, capable of sampling CPU events, tracing system calls, counting hardware performance counters, and generating flame graphs — all without any changes to the application under test. On RHEL 9, perf integrates tightly with the kernel’s BPF and tracepoint subsystems, making it one of the […]
Introduction Setting up set up a flask application on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a Flask Application on CentOS Stream 9, with all the commands you need, the SELinux and firewalld […]
Introduction This tutorial demonstrates how to Install Netdata on Oracle Linux 9 on Oracle Linux 9. 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 Oracle Linux 9 system with the default AppStream […]
Introduction This guide explains how to Apply CIS Benchmark Hardening to Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up a wordpress site on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up a WordPress Site on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]
Introduction How to Install Drupal on Oracle Linux 9 on Oracle Linux 9 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 reproducible […]
Introduction Deploying manage users and groups on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]
Introduction Setting up set up suricata ids/ips on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Suricata IDS/IPS on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]
Introduction This guide explains how to Configure Docker with a Non-Root User on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install […]
Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure alertmanager on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure AlertManager on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]
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