Introduction This tutorial covers How to Implement Network Segmentation on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]
How to Configure Security Compliance Baselines on Windows Server 2012 R2 Microsoft’s Security Compliance Toolkit (SCT) provides pre-built, tested Group Policy baselines for Windows Server 2012 R2 that align with both Microsoft’s own security recommendations and industry frameworks such as CIS and NIST. Rather than building a security baseline from scratch, the SCT gives you […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure the apt package manager on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]
Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure powervs network connectivity on ibm aix 7.2 on […]
Master the essentials of UFW with this guide to common firewall rules and commands. Learn how to configure, enable, and secure your Linux system using UFW.
Introduction How to Configure Swap Space 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. This […]
Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to tune network parameters with no on ibm aix 7.2 […]
How to Set Up Prometheus Windows Exporter on Windows Server 2012 R2 The Prometheus Windows Exporter (formerly known as wmi_exporter) is an open-source metrics collection agent that exposes Windows performance counters, WMI data, and system metrics in the Prometheus exposition format over HTTP. This makes Windows Server 2012 R2 natively scrapable by Prometheus, enabling integration […]
How to Set Up Windows Server 2016 NPS RADIUS Network Policy Server (NPS) is the Microsoft implementation of a RADIUS (Remote Authentication Dial-In User Service) server and proxy. NPS provides centralized authentication, authorization, and accounting (AAA) for network access requests, including VPN connections, 802.1X wireless and wired authentication, dial-up, and remote access through RRAS. By […]
Postfix is a high-performance, security-focused Mail Transfer Agent (MTA) that ships with RHEL 8 and is the default replacement for Sendmail. It handles the delivery of outbound email and, when configured correctly, accepts inbound mail for local users. Understanding Postfix is foundational for any RHEL administrator who needs to send system alerts, application notifications, or […]
