Introduction Deploying enable apparmor on debian 9 on a Debian 9 Stretch 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 begin, ensure […]
How to Deploy an Application to Kubernetes on RHEL 7 Deploying applications to Kubernetes involves more than simply running a container — it means defining how many replicas should run, how the application is exposed to network traffic, how it recovers from failure, and how updates are rolled out without downtime. Kubernetes provides two core […]
Introduction Setting up set up openvswitch on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up OpenVSwitch on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]
Introduction to Device Guard Device Guard is a set of hardware and software security features in Windows Server 2019 that locks down a device to run only trusted applications and drivers. It consists of two main components: Virtualization-Based Code Integrity (HVCI, also called Memory Integrity), which uses Hyper-V to protect the kernel from unsigned or […]
🟠 High ⏱ 5–30 min Last verified: 14 February 2021 Affected versions: Ubuntu 16.04 LTS 📖 ~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 Setting up use amanda for enterprise backup on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Use Amanda for Enterprise Backup on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]
Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up a network bridge on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up a Network Bridge on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]
Introduction This tutorial demonstrates how to Set Up LUKS Disk Encryption on Oracle Linux 8 on Oracle Linux 8. 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 8 system with […]
How to Configure Prometheus Node Exporter on RHEL 7 Prometheus Node Exporter is the de facto standard agent for exposing hardware and operating system metrics from Linux servers to a Prometheus monitoring server. It collects data on CPU usage, memory consumption, disk I/O, filesystem space, network traffic, running systemd services, and much more, all via […]
Introduction Setting up set up selinux mls policy on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up SELinux MLS Policy on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]
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