Introduction to Packer for Windows Server Image Building HashiCorp Packer is a tool that automates the creation of machine images from a single configuration file. For Windows Server 2019, Packer can build Hyper-V VHDs, VMware VMDK templates, AWS AMIs, Azure managed images, or VirtualBox OVAs—all from the same template definition. Custom Windows Server 2019 images […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use numa_node_info for numa topology on ibm aix 7.1 […]
🟠 High ⏱ 5–30 min Last verified: 14 January 2020 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up openmpi on ibm aix 7.1 on IBM […]
How to Configure Windows Server 2019 Helm Charts Helm is the package manager for Kubernetes, enabling you to define, install, and upgrade complex Kubernetes applications using reusable packages called charts. When working with Windows Server 2019 nodes in a Kubernetes cluster, Helm charts need to be configured with Windows-specific node selectors and tolerations to ensure […]
Introduction How to Set Up pf Firewall on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]
Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up enable ocsp stapling on nginx on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully […]
Network File System (NFS) is a distributed filesystem protocol that allows RHEL 8 servers to export directories over the network so that client machines can mount and use them as if they were local storage. NFS is a cornerstone of Linux infrastructure, used in everything from home lab setups to large-scale HPC clusters and virtualization […]
Introduction This guide explains how to Set Up Alertmanager Email Notifications on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with […]
Introduction This guide explains how to Set Up BGP Routing with BIRD on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install […]
