Article
How to Harden Ubuntu SSH Access with UFW and Fail2Ban
SSH is often the first remote entry point on Ubuntu, which makes it a high-value target. This article shows how UFW and Fail2Ban work together to reduce attack …
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
Windows 10 Event Viewer Log Analysis for Security Troubleshooting
Windows 10 Event Viewer logs are often the fastest path from a vague security symptom to a verified cause. This article explains how to interpret the most useful …
Article
Windows 11 BitLocker Recovery: Fixing TPM and PIN Errors
When Windows 11 drops into BitLocker recovery after a TPM or PIN failure, the issue is usually a trust, policy, or hardware state mismatch—not the encryption itself. This …
Tutorial
Configure Windows Server 2025 Secure Boot and BitLocker Drive Encryption
Learn how to enable Secure Boot and BitLocker on Windows Server 2025 with a practical workflow covering prerequisites, implementation, validation, and operational checks.
Article
Windows Server 2025 Hardening Guide for Attack Surface Reduction
Attack surface reduction on Windows Server 2025 is about removing unnecessary exposure without breaking services. This guide explains which controls matter, how they fit together, and what to …
Article
How to Install and Configure SELinux on CentOS 8
SELinux is one of the most effective containment controls on CentOS 8, but only if it is enabled, configured correctly, and validated before production. This article explains what …
Tutorial
Configure Windows 11 BitLocker with TPM and Secure Boot
Configure Windows 11 BitLocker with TPM and Secure Boot in Windows 11 using a practical workflow: verify prerequisites, enable protection, validate recovery, and check operational readiness before rollout.
Article
Windows 10 BitLocker Recovery Key Management and Audit Logs
BitLocker recovery key management is not just a storage problem; it is an operational control problem. This article explains where recovery keys come from, how they are typically …