Spring Boot is the most popular framework for building production-ready Java applications, and RHEL 8 provides an excellent foundation for running them as long-lived services. In this tutorial you will create a Spring Boot application using Maven, package it into a self-contained executable JAR, configure it to run as a systemd service with a dedicated […]
🟡 Medium ⏱ 5–30 min Last verified: 29 August 2019 📖 ~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 & Cross-Refs References & Further […]
Introduction This tutorial covers How to Configure SSL/TLS with OpenSSL on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper […]
How to Set Up Windows Server 2016 Microsoft Passport Microsoft Passport, now formally named Windows Hello for Business in modern documentation, is a credential technology introduced with Windows 10 and Windows Server 2016 that replaces traditional passwords with strong two-factor authentication using public key cryptography. In the Windows Server 2016 timeframe, Microsoft Passport referred to […]
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up port knocking on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure docker daemon tls on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]
Introduction How to Restrict Kernel Module Loading on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]
Introduction to Software-Defined Networking on Windows Server 2019 Software-Defined Networking (SDN) in Windows Server 2019 provides a programmable network infrastructure that decouples network configuration from the underlying hardware. Windows Server 2019 SDN, part of the Microsoft SDN stack, includes Network Controller (NC), Software Load Balancer (SLB), Windows Server Gateway (WSG), and Hyper-V Network Virtualisation (HNV). […]
🟡 Medium ⏱ 5–30 min Last verified: 25 August 2019 📖 ~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 & Cross-Refs References & Further […]
Introduction How to Configure Blacklistd 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 filtering, and […]
