Network Security Course

What Is the Network Security Course?

Every organisation, from a five-person office to a bank with thousands of branches, depends on its network, and a flat, poorly configured network turns a single compromised laptop into a company-wide incident. Network security specialists prevent this by designing segmentation, configuring firewalls and VPNs, deploying intrusion detection and monitoring traffic for anomalies.

This course is for learners who want to understand security from the infrastructure side. You build and attack virtual network topologies, then fix them, so you see exactly how a misconfigured rule or exposed service gets abused. The syllabus is vendor-neutral with practice on open-source firewalls and exposure to the major enterprise vendors’ concepts such as Cisco, Fortinet and Palo Alto.

Network security is a strong base for the SOC Analyst Course and the Penetration Testing Course, and it is a major part of the CompTIA Security+ Training.

Network Security Course at a Glance

Who Should Join This Course?

• Network engineers and system administrators who manage firewalls and VPNs.
• CCNA holders or students who want to add a security specialisation.
• Graduates aiming for network security engineer roles.
• IT managers in small and mid-size firms responsible for security.
• Learners preparing for Security+ or vendor firewall certifications.

Network Security Course Syllabus – Module by Module

The curriculum below is the practical sequence we follow in class. Each module ends in a lab so you can prove to yourself, and later to an interviewer, that you can perform the task rather than just describe it.

Module 1: Networking Fundamentals Through a Security Lens

A fast but deep review of protocols and devices with a focus on what attackers abuse.

• OSI/TCP-IP, routing and switching essentials
• ARP, DHCP, DNS and common protocol attacks
• IPv6 security considerations
• Packet analysis with Wireshark

Hands-on lab: Spot and reproduce ARP spoofing and DNS spoofing in a lab and apply switch-level protections.

Module 2: Firewalls and Access Control

Firewalls are only as good as their rules. You learn how to write, review and troubleshoot them.

• Stateful vs next-generation firewalls
• pfSense / OPNsense and iptables/nftables rule building
• NAT, DMZ design and rule base reviews
• WAF and application-layer filtering

Hands-on lab: Build a three-zone network with a DMZ and prove that only intended traffic is permitted.

Module 3: VPN, Remote Access and Zero Trust

Remote work made secure access critical.

• IPsec and SSL VPN with WireGuard / OpenVPN
• Site-to-site vs remote-access VPNs
• MFA, ZTNA and zero-trust principles
• Common VPN misconfigurations

Hands-on lab: Configure a site-to-site VPN and a remote-access VPN with MFA in the lab.

Module 4: IDS/IPS and Network Monitoring

Detect what firewalls miss.

• Snort and Suricata rules
• Zeek and NetFlow analysis
• Honeypots and deception
• Alert tuning and false positives

Hands-on lab: Write custom Suricata rules to catch a port scan and a malicious download.

Module 5: Network Segmentation, NAC and Secure Design

Architecture decisions that limit blast radius.

• VLANs, private VLANs, micro-segmentation
• 802.1X and network access control
• Secure design patterns for offices, data centres and branches
• Hardening network devices

Hands-on lab: Redesign a flat network into segmented zones and test lateral movement before and after.

Module 6: Wireless and Mobile Network Security

Wi-Fi security configuration and testing concepts.

• WPA2/WPA3 Enterprise, RADIUS
• Rogue AP detection
• Guest network and BYOD policy
• Wireless auditing in a lab

Hands-on lab: Secure a lab wireless network and run an authorised audit.

Tools and Technologies You Will Practise

Tool names on a syllabus mean little unless you have actually used them under time pressure. In this course you work with the following, mostly open-source or free-tier, tools so that you can keep practising at home after the batch ends:

• pfSense
• OPNsense
• iptables / nftables
• Wireshark
• Snort
• Suricata
• Zeek
• WireGuard
• OpenVPN
• GNS3 / Packet Tracer
• Nmap
• Cisco / Fortinet concepts

Projects and Capstone Work

Recruiters and clients trust evidence. These are the projects you complete and can document in a portfolio or GitHub repository:

• Secure office network design: segmented topology with firewall policy documentation.
• IDS rule pack: tested Suricata rules mapped to ATT&CK techniques.
• Firewall rule-base review: find over-permissive rules and propose a clean policy.

Why Learn Network Security Course in 2026?

Networks are being redesigned for cloud, remote work and zero trust, but the fundamentals of segmentation, filtering and monitoring remain central. Organisations still struggle with outdated firewall rules and flat networks, so people who can clean these up are always useful.

Network security also builds the foundation for almost every other security specialisation, making it a safe choice for beginners who are unsure which path to pick.

Career Roles and Indicative Salary After This Course

The table lists roles that this skill set maps to. Salary figures are indicative market ranges for India expressed in lakhs per annum (LPA); actual offers depend on your city, prior experience, practical skill demonstrated in interviews and the hiring company. They are not a guarantee or promise of placement.

Certifications and Exams This Course Prepares You For

• CompTIA Security+ / Network+: broad vendor-neutral foundation.
• Cisco CCNA / CyberOps: popular with network teams.
• Fortinet NSE and Palo Alto PCNSA: vendor firewall credentials aligned to firewall modules.

Certification exams are conducted by their respective owners (EC-Council, CompTIA, ISC2, OffSec, ISACA and others). We are an independent training provider; exam fees are paid directly to the certifying body and we do not claim any official partnership.

What You Will Be Able to Do After the Network Security Course

Learning outcomes should be observable. By the end of this program you will be able to demonstrate the following, each backed by a lab or assignment you complete during the course:

• After Networking Fundamentals Through a Security Lens you can: spot and reproduce ARP spoofing and DNS spoofing in a lab and apply switch-level protections.
• After Firewalls and Access Control you can: build a three-zone network with a DMZ and prove that only intended traffic is permitted.
• After VPN, Remote Access and Zero Trust you can: configure a site-to-site VPN and a remote-access VPN with MFA in the lab.
• After IDS/IPS and Network Monitoring you can: write custom Suricata rules to catch a port scan and a malicious download.
• After Network Segmentation, NAC and Secure Design you can: redesign a flat network into segmented zones and test lateral movement before and after.
• After Wireless and Mobile Network Security you can: secure a lab wireless network and run an authorised audit.

How the Network Security Course Compares With Related Courses

Choosing between neighbouring courses is easier with a side-by-side view. The table compares this program with the options learners most often consider alongside it.

Checklist: Are You Ready to Join?

• Prerequisites: basic networking knowledge helpful (IP, routing); revised in week one.
• A laptop with 8 GB RAM (16 GB recommended for virtual machine labs) and stable internet.
• About 7 hours per week for live classes, labs and practice.
• An ethical mindset: all techniques are practised only in authorised lab environments.
• Curiosity about how systems fail, and patience to debug when a lab does not work the first time.

If you meet most of these, you are ready; if not, the free demo will tell you which foundation course to take first.

Career Growth Path After This Course

A first role is rarely the destination. Learners who complete the Network Security Course typically begin as network Security Engineer or similar and progress towards firewall Administrator and security Architect (later) roles over the following years. Growth depends less on the number of certificates and more on documented work: lab write-ups, a GitHub or blog portfolio, contributions to capture-the-flag teams and clear communication during interviews. Re-skilling every year is part of the profession, so we also share a post-course learning plan and recommend the next logical courses.

How the Online Network Security Course Training Works

Every class is delivered live by a working trainer over video, so you can ask questions the moment they come up, share your screen when a lab breaks and get an answer on the spot. Sessions are recorded and shared with the batch for revision, which matters if you are a working professional who occasionally misses a class. Lab access is provided on a hosted practice environment, so you do not need an expensive laptop; a basic machine with 8 GB RAM and a stable internet connection is enough for most exercises, and we guide you through the virtual machine setup in the very first week.

The expected duration for this program is About 2.5 months (weekday or weekend batches), and the pace is designed for people who are studying or working at the same time. Each week combines concept sessions, guided labs, an assignment and a doubt-clearing session. In the final weeks you complete a capstone exercise and go through resume, LinkedIn and mock-interview preparation so that your skills are visible to recruiters.

Batch Timings, Free Demo and How to Register

A new batch for Network Security Course starts every week, with weekday evening, weekend and fast-track options depending on trainer availability. The simplest way to begin is the free demo class: you join a live session, see the lab platform, review the syllabus with the trainer and ask any question about fees, schedule or career outcomes before you decide.

1. Fill the enquiry form on this page or message us on WhatsApp at +91 81888 77720.
2. We call you back, understand your background and suggest the right course and batch.
3. Attend the free demo class and review the complete syllabus.
4. Confirm your seat for the upcoming batch and receive lab and class access.

Courses That Pair Well with Network Security Course

Most learners combine this program with one more track. Popular pairings are Cyber Security Course, SOC Analyst Course, Cloud Security Course, CompTIA Security+ Training and Penetration Testing Course. You can also compare every track on our all cyber security courses page, or read the fees guide and complete syllabus overview before choosing.

Join From Any City in India

Because the training is fully online, learners join from every state. Popular cities include Delhi, Mumbai, Pune, Hyderabad, Bengaluru, Chennai, Kolkata, Ahmedabad, Noida, Gurugram, Lucknow and Jaipur. See the complete list of states and cities or find the nearest option through our cyber security training near me guide.