Hardening Your Server: 12 Critical Steps Every Admin Should Take
12 practical steps to harden servers — disable unused services, enforce updates, secure SSH, configure firewalls, enable MFA, and perform vulnerability scans.
Articles
Insights and guides on email, security, and modern tools.
Articles list
CI/CD Pipelines: Automating Code Deployment the Smart Way
Introduction to CI/CD pipelines: source control, automated testing, build automation, and deployment tools like GitHub Actions, GitLab CI, and Jenkins.
Cloud Infrastructure 101: Choosing Between AWS, Azure, and Google Cloud
Comparison of major cloud providers—AWS, Azure, and Google Cloud—with guidance on which provider suits different workloads and organizational needs.
Web Application Security (OWASP Top 10)
An overview of the OWASP Top 10 web application security risks, including broken access control, injection, cryptographic failures, and SSRF.
RBAC Explained — Role-Based Access Control in Practice
Understand RBAC as a core security control, how it fits into modern IAM and Zero Trust architectures, and where it works best.
Identity and Access Management (IAM)
Overview of Identity and Access Management (IAM): identification, authentication, authorization, and auditing — and why IAM is essential for modern cybersecurity.
TCP/IP Model and Layer 3 Networking (Routing)
A practical explanation of the TCP/IP model with emphasis on Layer 3 (routing), IP addressing, and routing protocols such as OSPF and BGP.
Linux Server Administration (Shell & Automation)
Essential Linux server administration guide: user & permission management, package updates, monitoring, systemd, and shell automation examples.
Core Cloud Services (IaaS, PaaS, SaaS)
Explainer of cloud service models — IaaS, PaaS, SaaS — with examples and guidance on choosing the right model for your project.
Firewalls and Network Segmentation
Learn how to design firewall policies and network segmentation to isolate systems, reduce attack surface, and improve compliance.
Web Server Configuration (nginx & apache)
Practical configuration tips for nginx and Apache: SSL/TLS, caching, headers, virtual hosts, and performance tuning.
Cloud Security Best Practices
Essential cloud security controls: IAM hygiene, network controls, encryption, monitoring, and incident response for cloud-native environments.
DNS Deep Dive: How Domain Resolution Really Works
A developer-friendly deep dive into DNS: TLDs, authoritative servers, recursive resolvers, caching, and common record types (A, AAAA, CNAME, MX, TXT).
How the Internet Works — From Packets and Protocols to Global Infrastructure
Learn how the internet works behind the scenes, from data packets and protocols to routing, DNS, and worldwide infrastructure.
Mastering Secure Coding Practices: Preventing Vulnerabilities From Day One
Learn essential secure coding practices to prevent vulnerabilities early in the development lifecycle. Covers input validation, authentication, encryption, and more.
