Article
RHEL SELinux Troubleshooting for Access Denial Events
SELinux access denials on RHEL are usually a symptom, not the root cause. Learn how to identify the denial, separate policy issues from labeling problems, and decide on …
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
Article
Harden Windows Server 2022 with Secure Core and Credential Guard
Secure Core and Credential Guard strengthen Windows Server 2022 against firmware tampering and credential theft, but they only fit certain hardware, boot, and workload conditions. This article explains …
Tutorial
How to Configure SELinux Policies on CentOS 8
Configure SELinux policies on CentOS 8 by preparing the system, identifying denials, creating or adjusting policy rules, and validating the result before production use.
Tutorial
How to Configure FirewallD on CentOS 8 Step by Step
Learn how to configure FirewallD on CentOS 8 step by step: verify prerequisites, choose the right zone, open services or ports, validate rules, and confirm the firewall behaves …
Article
How to Harden CentOS 7 with SELinux and Firewalld
CentOS 7 hardening is most effective when SELinux and Firewalld are treated as complementary controls. This article explains what each layer does, how they work together, what to …
Article
Windows 11 BitLocker Recovery Key Management and Enforcement
Windows 11 BitLocker recovery key management is about more than storing a recovery password. This article explains how recovery key enforcement works, where keys should be backed up, …
Article
Troubleshooting SELinux Policy Access Denials on Red Hat Systems
SELinux access denials are often a symptom of mislabeled files, missing policy allowance, or an application that is not operating within its expected context. This article shows how …
Article
Windows Server 2025 Security Baseline Hardening for Zero Trust
A practical look at how to harden Windows Server 2025 for Zero Trust by using a security baseline, validating control effects, and checking production readiness before rollout.
Article
Windows Server 2022 Hardened Baseline for Secure Deployment
A hardened baseline gives Windows Server 2022 deployments a consistent security floor, reduces exposure from default settings, and creates a repeatable standard for validation before production.