Article
SQL Server Vulnerability Assessment and Hardening Checklist
A practical checklist for assessing SQL Server exposure, validating security controls, and hardening a server before production use.
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Branch and Bound Algorithm for Optimal Resource Scheduling
Branch and bound can find optimal schedules when brute-force search is too expensive and heuristics are not precise enough. This article explains how it works, when to use …
Article
Detecting Active Directory Privilege Escalation Paths with BloodHound
BloodHound turns Active Directory relationships into a graph that helps security teams identify privilege escalation paths before they are used. This article explains how to interpret the findings, …
Article
Node.js Secure File Upload Validation with Stream-Based Checks
Stream-based file upload validation helps Node.js applications reject unsafe content before it reaches disk or object storage. This article explains how to validate uploads by inspecting bytes as …
Article
Hyper-V VM Checkpoints: Best Practices for Safe Rollback
Hyper-V VM checkpoints can be a safe rollback tool when you understand their limits. Learn when to use them, what to verify, and how to avoid the common …
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
MySQL Query Performance Tuning for High-Load Databases
High-load MySQL systems usually slow down because a small set of queries consume disproportionate CPU, I/O, or lock time. This article explains how to identify those queries, validate …
Article
VM Snapshot Management Best Practices for Performance and Recovery
VM snapshots are useful for short-term recovery, but they can quickly become a performance and operational risk if they are left in place too long. This article explains …