Article
Ubuntu UFW Firewall Rules: Configure and Audit Access Control
UFW is a practical way to define host-level access control on Ubuntu, but production use requires more than opening ports. Learn how UFW rules work, how to inspect …
VectraOps knowledge library
Operating Systems
Content about server, desktop and mobile operating systems, including installation, configuration, patching, hardening and lifecycle management, belongs here. It also covers OS-focused automation, administration and security topics such as policy enforcement, access control, scripting, monitoring and troubleshooting across platforms.
Article
Tutorial
Windows Server 2025 Hardening with Security Baselines and Audit Policies
Build a practical Windows Server 2025 hardening workflow using security baselines and audit policies. This tutorial covers prerequisites, implementation, validation, and operational follow-up so you can apply changes …
Article
How to Secure Red Hat Systems with SELinux Policies
SELinux policies let you confine services to only the resources they truly need. This article explains how that reduces attack surface, how to validate enforcement, and what to …
Tutorial
How to Harden Windows Server 2025 with Security Baselines
A practical tutorial for applying security baselines to Windows Server 2025: prepare safely, deploy the baseline, validate enforcement, and verify the hardened state before production.
Article
Configure Windows 11 Attack Surface Reduction Rules for Endpoint Security
Attack Surface Reduction rules can materially reduce common endpoint attack paths in Windows 11 when they are targeted, validated, and rolled out with care. This article explains how …
Article
Windows Server 2025 Hardened Baselines for Secure Deployment
A hardened baseline gives Windows Server 2025 a consistent security starting point: fewer exposed services, tighter identity controls, safer remote administration, and clearer validation before production rollout.
Article
Hardening CentOS 9: Secure SSH and Disable Unused Services
CentOS 9 hardening starts with two high-value controls: locking down SSH and removing unused services from the attack surface. This article explains what to change, how to validate …
Article
Windows 11 BitLocker Recovery Key Management and Backup Strategies
BitLocker recovery key handling is a small operational control with outsized impact. This article explains where keys should be backed up, how to verify they are recoverable, and …
Article
Windows Server 2022 Security Hardening Checklist for Compliance
Use this practical checklist to harden Windows Server 2022 for compliance, validate evidence, reduce attack surface, and decide what to verify before production use.