Foundations of Network Security and Database Vulnerabilities

Learn to secure small-office networks, configure DNS and DHCP, and identify database vulnerabilities using modern zero-trust principles.

4.7 (3,511) ⏱ 33 min 📚 5 lessons

About this course

In an increasingly connected world, securing network infrastructure and protecting database assets is critical to preventing costly data breaches. Understanding how networks operate and where databases are vulnerable is the first step toward building a resilient security posture. This text-based course guides you through the core principles of network administration and database security. You will learn how to secure small-office networks, configure essential protocols, and identify common database vulnerabilities, establishing a strong foundation for a career in information security. What you'll learn: - Understand foundational network concepts, protocols, and the modern threat landscape - Configure and secure essential network services including DHCP and DNS filtering - Secure small office and home office (SOHO) networks against unauthorized access - Identify and mitigate common database vulnerabilities, such as SQL injection - Apply zero-trust security concepts to modern network architectures You will start by mastering key networking terminology and security principles before moving on to practical scenarios for securing network services and databases. Through written explanations and practical exercises, you will build a solid working knowledge of modern security practices. This course is designed for absolute beginners looking to enter the cybersecurity field, with no prior networking or database experience required. Start building your network and database security skills today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 30-day refund
    No questions asked
  • Short & focused
    33 min of practical content

Reviews (4)

محمد الحسن JO
★ 5 · 2026-04-30T09:09:06+00:00

This course delivered exactly what I needed. The explanations were clear and concise. Big thumbs up!

Joseph Adams AU Verified learner
★ 3 · 2026-01-05T04:21:06+00:00

Really enjoyed the flow of this. The practical applications discussed were spot on. Great course!

Ерлан Баймуратов KZ Verified learner
★ 5 · 2025-12-21T08:29:06+00:00

This course provided exactly what I needed. The clarity and depth of the material were outstanding. Highly recommended!

Renata Romero AR Verified learner
★ 4 · 2025-04-10T16:09:06+00:00

Thoroughly enjoyed this course. The way the information was presented was excellent, and the practical applications were highlighted effectively. Great job!

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe, or with cryptocurrency. We do not store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 30 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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