How to Configure an SMTP Relay on Windows Server 2012 R2 An SMTP relay server acts as an intermediary mail gateway, accepting email from authorised internal systems (applications, printers, monitoring tools, scripts) and forwarding it to its destination — either a smart host (such as Exchange or Office 365) or directly via MX lookup. Every […]
How to Configure System State Backup and Bare Metal Recovery on Windows Server 2012 R2 A system state backup captures the critical OS configuration components required to restore a Windows Server 2012 R2 to a functional state without reinstalling the operating system. It includes the registry, the COM+ class registration database, Active Directory (on domain […]
Introduction Deploying set up nginx as a reverse proxy 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. […]
Introduction How to Configure Multipath I/O on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster 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 10. This […]
How to Configure Windows Server 2019 Backup and Recovery Data protection and disaster recovery are critical responsibilities for any server administrator. Windows Server 2019 includes Windows Server Backup (WSB), a built-in backup solution that supports full server backups, bare-metal recovery (BMR), system state backups, and individual volume or file backups. For enterprise environments, WSB can […]
Introduction Deploying install terraform on debian 10 on a Debian 10 Buster 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 You will need a […]
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 enable fips mode on ibm aix 7.1 on IBM […]
🟠 High ⏱ 5–30 min Last verified: 6 September 2020 Affected versions: Debian 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 Related Errors & […]
🟡 Medium ⏱ 5–30 min Last verified: 6 September 2020 📖 ~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 […]
🟠 High ⏱ 5–30 min Last verified: 6 September 2020 Affected versions: Windows Server 2016 📖 ~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 […]
