🟡 Medium ⏱ 5–30 min Last verified: 6 January 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 […]
Introduction This guide explains how to Set Up Unbound DNS Resolver 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 Install and Configure Samba File Server 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 […]
🟠 High ⏱ 5–30 min Last verified: 5 January 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]
How to Configure TLS/SSL in IIS on Windows Server 2012 R2 Properly configuring TLS/SSL in Internet Information Services (IIS) on Windows Server 2012 R2 is essential for protecting data in transit for web applications, APIs, and services. The default IIS configuration on Server 2012 R2 supports SSL 2.0, SSL 3.0, and TLS 1.0 — all […]
Envoy Proxy is a high-performance, cloud-native Layer 7 proxy originally built at Lyft and now a CNCF graduated project. Unlike Nginx or HAProxy, Envoy is designed with dynamic configuration via xDS APIs and deep observability baked in, making it the proxy of choice for service meshes such as Istio. On RHEL 8 you can run […]
🟠 High ⏱ 5–30 min Last verified: 2 January 2020 Affected versions: Windows Server 2019 📖 ~2 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 […]
How to Set Up Windows Server 2016 Active Directory Rights Management Active Directory Rights Management Services (AD RMS) is an information protection technology that works with AD RMS-enabled applications to help safeguard sensitive documents and email from unauthorized use. When content is protected using AD RMS, usage policies are embedded directly in the file — […]
HashiCorp Vault is an industry-standard secrets management platform that stores, generates, and controls access to sensitive values such as API keys, database passwords, TLS certificates, and encryption keys. Unlike storing secrets in environment variables or configuration files, Vault provides audit logging, dynamic credentials with short TTLs, and fine-grained access policies. On RHEL 8, Vault installs […]
WebSockets provide a persistent, full-duplex communication channel over a single TCP connection, making them essential for real-time applications such as chat systems, live dashboards, and collaborative tools. Nginx can act as a reverse proxy that transparently upgrades incoming HTTP connections to the WebSocket protocol and forwards them to a backend application server. This tutorial walks […]
