Greater Insights
Greater Insights Learning simplified!
cyber-security · Intermediate to Advanced

Network Security in Mumbai

Master Network Security in Mumbai — move into Network Security Analyst roles paying ₹8–16 LPA, rising to ₹30L at senior level.

★★★★★ 4.7 Google
✓Instructor-led live sessions
✓Trainers with 15+ years industry experience
✓Hands-on cloud labs and coding playground
✓Industry-specific projects — AI-graded, trainer-validated
✓Industry-recognised certification, LinkedIn-shareable
👤
40,000+
Professionals trained
🏢
350+
Enterprise clients
Next batch: 14 Nov 2026Filling Fast
Wireshark
cyber-security
Network Security
Firewall DesignThreat AnalysisIDS Deployment
₹12,600 ₹21,000 40% off
⏰ ⚡ Flash sale · 40% off · EMI from ₹1,138/mo
Next batch 14 Nov 2026
🎓 Virtual Instructor-led
What's Included
🎓
Instructor-led sessions
🧪
Hands-on labs
🎯
Capstone project
🏆
GI Certificate

Trusted by leading enterprises

Upcoming Batches

Open-house batches for individuals — enroll directly. Training a team? Request an enterprise quote →

Weekday Weekend ⏱ Total duration: 24 hours
DatesScheduleModeDurationPrice
14 Nov – 29 Nov 2026
Saturday
all session dates
10:00 AM–2:00 PM IST 🎓 Virtual Instructor-led🗓️ Weekends | Half days 3 weekends ₹12,600
₹21,000
Session datesWeekend batch
Sat 14 NovSun 15 NovSat 21 NovSun 22 NovSat 28 NovSun 29 Nov
16 Nov – 18 Nov 2026
Monday
all session dates
9:30 AM–5:30 PM IST 🎓 Virtual Instructor-led🗓️ Weekdays | Full days 3 days ₹12,600
₹21,000
Session datesWeekday batch
Mon 16 NovTue 17 NovWed 18 Nov
07 Dec – 04 Jan 2027
Monday
all session dates
8:00 PM–10:00 PM IST 🎓 Virtual Instructor-led🗓️ Weekdays | Evenings 12 sessions ₹12,600
₹21,000
Session datesWeekday batch
Mon 7 DecWed 9 DecFri 11 DecMon 14 DecWed 16 DecFri 18 DecMon 21 DecWed 23 DecMon 28 DecWed 30 DecFri 1 JanMon 4 Jan
Enterprise
Custom Date
Custom Schedule
Your timing & location
⚡ Any Mode Flexible Custom pricing

Can't find a suitable batch? Contact us

Soaring Demand — and Where It Takes You

Real salaries
Min, average, max by role
Real hiring companies
Who's actually recruiting
Roles this programme prepares you for
Network Security EngineerNetwork Security AnalystSecurity Operations Centre AnalystCybersecurity AnalystInfrastructure Security EngineerPenetration TesterIT Security SpecialistFirewall AdministratorIntrusion Detection Analyst

Become a Network Security Engineer

Design and implement secure network architectures using firewalls, defence-in-depth strategies, and threat mitigation techniques.

Average Salary* · Entry · 0–2 years exp
₹4L
Min
₹6L
Average
₹8L
Max
Hiring Companies

Become a Network Security Analyst

Monitor networks for vulnerabilities, analyse traffic patterns, and identify threats using security policies and logging analysis.

Average Salary* · Mid-level · 3–6 years exp
₹8L
Min
₹12L
Average
₹16L
Max
Hiring Companies

Become a Security Operations Centre Analyst

Detect, investigate, and respond to security incidents by monitoring firewall logs and identifying intrusion attempts.

Average Salary* · Senior · 7+ years exp
₹16L
Min
₹22L
Average
₹30L
Max
Hiring Companies
45%
YoY growth in data science job postings
· LinkedIn Jobs Report
2.8L+
Active open positions in analytics roles
· Indeed India Job Market Data
8-12L
Entry-level data analyst annual compensation
· Glassdoor India Salary Survey
25-35L
Mid-level data scientist annual package
· PayScale India Analytics Report
78%
Organizations actively recruiting analytics talent
· Nasscom Tech Talent Report
3.5x
Candidate-to-role ratio favoring professionals
· Monster India Talent Index
32%
Avg salary increase after 3 years experience
· AIM Research Analytics Career Study
4.2 yrs
Average time to senior analyst promotion
· Great Place to Work India Survey
89%
Enterprises investing in analytics capabilities
· Forrester Analytics Wave
6/10
Top industries hiring: IT, Finance, E-commerce
· CII Digital Economy Report
SQL, Python
Most sought technical skills in 2024
· HackerRank Developer Skills Report
ML/AI
Fastest-growing specialization demand
· Coursera Skills Index India

* Salary figures sourced from AmbitionBox (2026-Q2). Indicative — actual pay varies by city, company and experience.

About This Course

This intermediate to advanced course in Network Security equips you with the knowledge and practical skills to design, implement, and defend secure network infrastructures. You'll explore the OSI model and TCP/IP protocol architecture, analyze common attack vectors including spoofing, man-in-the-middle, and distributed denial-of-service threats, and apply foundational security principles like the CIA triad and defense-in-depth strategies.

Ideal for network security engineers, analysts, and cybersecurity professionals, this course guides you through building complete secure network topologies. You'll configure firewalls and design segmented architectures with demilitarized zones, deploy both host-based and network-based intrusion detection systems, establish encrypted remote access via VPN technologies, and develop effective security policies. Using industry-standard tools including Wireshark, Snort, Suricata, pfSense, Nmap, Nessus, Cisco Packet Tracer, Kali Linux, OpenVPN, OpenSSL, Zeek, and iptables, you'll gain hands-on experience detecting security incidents and orchestrating comprehensive defense mechanisms across your network environment.

Who Should Attend

The job roles this programme is built for.

Network Security Engineer
Master firewall design, IDS deployment, and defence-in-depth strategies
Security Operations Centre (SOC) Analyst
Learn intrusion detection, alert analysis, and incident response techniques
Network Administrator
Advance from basic networking to implementing enterprise security controls
Cybersecurity Analyst
Deepen knowledge of network attacks, vulnerabilities, and mitigation tactics
Penetration Tester
Understand network defences to better identify and test security weaknesses
Infrastructure Security Engineer
Design secure networks using VPNs, firewalls, and segmentation principles
PrerequisitesBasic understanding of networking concepts such as IP addressing and subnetting · Familiarity with the OSI model · General knowledge of operating systems including Windows and Linux · Foundational awareness of cybersecurity principles

What You Will Learn

✓Design firewall topologies and rule sets to enforce network segmentation
✓Deploy host-based and network-based intrusion detection systems effectively
✓Analyse TCP/IP protocol weaknesses and defend against common network attacks
✓Implement IPsec and SSL VPNs for secure remote access
✓Configure packet filtering and stateful inspection firewalls
✓Write and tune Snort signatures to detect network intrusions
✓Build demilitarised zones and proxy server architectures
✓Evaluate wireless encryption standards and mitigate wireless attacks
✓Orchestrate log collection, analysis, and incident response procedures
✓Model zero trust network design principles for defence in depth

Skills You Will Gain

Foundations & Defence Strategy
Network topologies and OSI model
Threats and vulnerabilities
CIA triad application
Defence-in-depth strategies
Security policies
Attack Analysis & Prevention
TCP/IP weaknesses
Spoofing and eavesdropping
Man-in-the-middle attacks
Denial-of-service attacks
Intrusion detection systems
Secure Architecture & Operations
Firewall configuration
Demilitarised zones
VPN deployment
Log analysis and monitoring
Incident response

Tools & Platforms Covered

Wireshark
Snort
pfSense
OpenVPN
Nmap
Suricata
Kali Linux
Nessus
Cisco Packet Tracer
OpenSSL
Zeek
iptables

Course Curriculum

9 modules · hands-on labs · 1 capstone project · 24 hours

M01 Network Security Foundations
5 topics · 3 hrs ▼
  • Network topologies and the OSI model
  • Threats, vulnerabilities, and defence mechanisms
  • The CIA triad for networks
  • Defence in depth
  • Security policies
🧪 Hands-on Build a layered network diagram in Cisco Packet Tracer that maps CIA triad controls and defence-in-depth zones across a multi-topology environment.
Skills OSI Model Mapping CIA Triad Defence-in-Depth Security Policies
M02 Protocols and Network Attacks
5 topics · 3 hrs ▼
  • TCP and IP weaknesses
  • Spoofing and eavesdropping
  • Man-in-the-middle attacks
  • Denial of service and distributed denial of service
  • Phishing and reconnaissance
🧪 Hands-on Execute and capture a man-in-the-middle attack using Kali Linux and Wireshark to analyse spoofed packets and ARP poisoning on a live lab network.
Skills Wireshark Packet Analysis Network Attack Techniques Kali Linux Nmap Reconnaissance
M03 Firewalls and Network Segmentation
5 topics · 3 hrs ▼
  • Packet filtering and stateful inspection
  • Firewall topologies and rule sets
  • Demilitarised zones
  • Proxy servers
  • Logging and auditing
🧪 Hands-on Deploy a pfSense firewall with a DMZ and proxy configuration, write stateful rule sets, and review generated audit logs to validate segmentation.
Skills pfSense Firewalls iptables Rule Sets DMZ Design Firewall Auditing
M04 Intrusion Detection and Prevention
5 topics · 4 hrs ▼
  • Host-based and network-based intrusion detection
  • Detection methods and signatures
  • Intrusion prevention systems
  • Deploying and tuning Snort
  • Alert analysis
🧪 Hands-on Deploy Snort on a live network segment, write and tune custom signatures, then analyse triggered alerts to classify and prioritise real attack traffic.
Skills Snort Deployment IDS/IPS Signatures Suricata Alert Analysis
M05 VPNs and Secure Remote Access
5 topics · 3 hrs ▼
  • IPsec and SSL VPNs
  • Encrypted tunnels
  • Authentication and key exchange
  • OpenVPN configuration
  • Remote access security
🧪 Hands-on Configure a site-to-site OpenVPN tunnel with certificate-based authentication using OpenSSL and verify encrypted traffic with Wireshark.
Skills OpenVPN Configuration IPsec and SSL VPNs OpenSSL Certificates Encrypted Tunnels
M06 Wireless and Endpoint Security
5 topics · 3 hrs ▼
  • Wireless encryption standards
  • Wireless attacks and defences
  • Rogue and evil twin access points
  • Network access control
  • Endpoint hardening
🧪 Hands-on Simulate a rogue access point attack using Kali Linux, detect it with Wireshark, and implement WPA3 controls and network access control policies to harden endpoints.
Skills Wireless Encryption Standards Rogue AP Detection Network Access Control Endpoint Hardening
M07 Monitoring and Incident Response
5 topics · 3 hrs ▼
  • Network monitoring
  • Log collection and analysis
  • Honeypots and honeynets
  • Detecting intrusions
  • Responding to incidents
🧪 Hands-on Build a monitored network environment using Zeek and a honeynet, collect and analyse logs to detect an active intrusion, and produce an incident response report.
Skills Zeek Network Monitoring Log Analysis Honeypots and Honeynets Incident Response
M08 Hardening and Best Practices
5 topics · 1 hr ▼
  • Secure network design
  • Patching and configuration management
  • Zero trust concepts
  • Auditing
  • Continuous improvement
🧪 Hands-on Audit a misconfigured lab network using Nessus to identify vulnerabilities, apply patches and zero-trust segmentation rules, and produce a hardening checklist.
Skills Nessus Auditing Zero Trust Concepts Configuration Management Secure Network Design
M09 Capstone Project
2 topics · 1 hr ▼
  • Choose a project theme with your trainer
  • Build it end to end in Wireshark
Skills Project Scoping End-to-End Delivery Presenting Findings

Hands-On Projects

Every batch includes guided labs, case studies and a capstone — applied to real-world problems.

Project themes may include
✓Firewall Rule Set Designer
✓Intrusion Detection Signature Tuner
✓Network Traffic Analyzer
✓VPN Tunnel Configurator
✓DoS Attack Detector
✓Wireless Security Auditor
Project work is tailored to each cohort and the latest industry practice.
Why Train With Greater Insights
Orbit
Powered by Greater Insights

An immersive learning experience

Everything your programme needs, in one connected place.

orbit · participant
Your level journey
Join today’s session
🔍 Join today’s session
🧭Your learning journey
📝
EnrollProgramme unlocked
done
🎥
Live sessionsInstructor-led
now
🧪
Cloud labsReal AWS / Azure / GCP
📊
AssessmentsPre & post uplift
🚀
CapstoneAI-graded
🎓
CertificateEarned by building
🪪
Learning PassportYours, forever
🧪Cloud Lab — AWS sandbox live 24×7
EC2 instance · provisioned in 6s
Dataset mounted · 2.3 GB
GPU notebook · ready
AWSAzureGCP

No install. No config. Just build.

orbit · code-playground
Browser IDE · run instantly
Browser IDE · run instantly detail
🔍 Browser IDE · run instantly
orbit · my-assessment
Pre → post · measured uplift
Pre → post · measured uplift detail
🔍 Pre → post · measured uplift
orbit · capstone
Real project link captured
Real project link captured detail
🔍 Real project link captured
orbit · my-tasks
Today’s tasks & sessions
Today’s tasks & sessions detail
🔍 Today’s tasks & sessions
J
Jane DoeLearning Passport
◆ Verified
🎓
CertificateGenerative AI with Deep Learning
Earned
🚀
Capstone — RAG assistantAI-graded · trainer-validated · View project ↗
92%
📈
Capability upliftpre → post
+43%
🛠️
Skills demonstratedRAG · fine-tuning · agents
7
◆ Shareable in one link · verified by Greater Insights
01 · Meet Orbit

Your learning platform from day one.

Not email, Zoom links and scattered PDFs. From the moment you enroll, your whole programme lives in one place.

All-in-oneEverything connectedLive & instructor-led
02 · Your journey

One connected learning journey.

From enrolment to certificate, every step is laid out in order — you always know where you are and exactly what happens next. Nothing lost between tools.

03 · Cloud Labs

Real environments. Zero setup.

Pre-configured cloud labs. Spin one up in seconds, build on real infrastructure, break things and learn — nothing to install.

Pre-configuredReal cloudLive 24×7
04 · Coding Platform

A browser IDE with instant feedback.

Write and run code right in the browser, get AI feedback as you go, and practice against problems that mirror the job — no local setup, ever.

Browser IDEAI feedback
05 · Pre & Post Assessments

See exactly how far you've come.

A pre-assessment sets your baseline; a post-assessment proves your uplift. Real, measurable growth — for you, and for the employer looking at your record.

"I can see myself improving."
06 · Capstone

Prove it on a real project.

A capstone graded by AI and validated by your trainer — detailed feedback in hours, not weeks, on work that looks like what teams actually ship.

AI-gradedTrainer-validated
"I built something real."
07 · Guided every step

Always know what's next.

Today's session, pending tasks, resources and progress — organised in one place so you focus on learning, not on chasing links and files.

"This feels structured."
08 · Learning Passport

More than a certificate — proof you can show.

One verifiable link — the project you built, your before → after scores, the skills you proved. Shareable with any employer.

Your projectBefore → afterVerifiable link
"I can show what I can actually do."
Orbit platform — full view
Click image to zoom · Esc to close
Active Industry Practitioners
  • 15+ years of real industry experience
  • Senior tech leaders who’ve shipped what they teach
  • 100+ corporate trainings delivered to leading organisations
Live Interactive Learning
  • Live, instructor-led sessions
  • Real-time Q&A and instant doubt-clearing
  • Expert-led mentoring throughout
Post-Training Support
  • Course materials & lab files to keep
  • Direct trainer connect after the programme
  • Ongoing support from the GI team
Curriculum Updated Quarterly
  • Built around tools and practices used in production today
  • New techniques incorporated as the technology landscape evolves
  • Labs, projects and case studies refreshed every quarter
Certification

A certificate recognised by leading employers

Earn your Greater Insights Network Security certificate — ready to share on LinkedIn.

Greater Insights Certificate Sample
⬇  Get Sample Share on LinkedIn
Have a specific question?
Our advisors respond within 2 hours on working days.

Learner Reviews

Verified Google reviews — Greater Insights company-wide

Frequently Asked Questions

Which companies in Mumbai hire Network Security professionals? +
Major employers in Mumbai and across India seeking Network Security talent include TCS, Infosys, HCL Technologies, and Wipro. Additionally, financial services firms, e-commerce platforms, and multinational corporations with Indian operations actively recruit security professionals in the city.
Is this course available as classroom training in Mumbai? +
Yes, we offer both live virtual instructor-led training (VILT) and on-site team training options for organizations in Mumbai. On-site sessions can be arranged at your corporate location with flexible scheduling to suit your team's availability.
Can I take this course from Mumbai online? +
Absolutely. This course is available as live online training accessible from anywhere in Mumbai. We schedule batches with sessions timed to accommodate Indian Standard Time (IST), ensuring convenient access for learners across Mumbai and India.
How does Mumbai compare to other markets for these jobs? +
Mumbai is India's leading financial and technology hub with strong demand for Network Security professionals across banking, IT services, and digital enterprises. The city offers more opportunities and higher competition than tier-2 markets, making certifications and hands-on skills particularly valuable for career advancement.
What will I learn in this Network Security course? +
You'll master firewall design, intrusion detection deployment, and defence-in-depth strategies. The curriculum covers network topologies, threat identification, the CIA triad, security policies, and incident response techniques.
Does the course include hands-on labs? +
Yes. You'll work with live, instructor-led online sessions and hands-on cloud labs. You'll configure firewalls, deploy intrusion detection systems, and test defences on a sample network.
Which tools will I use during training? +
You'll work with industry tools including Wireshark, Snort, pfSense, OpenVPN, Nmap, Suricata, Kali Linux, Nessus, Cisco Packet Tracer, OpenSSL, Zeek, and iptables.
Will I learn firewall configuration? +
Yes. You'll design firewall topologies, create rule sets, implement packet filtering, and configure stateful inspection. You'll also design demilitarized zones and proxy server deployments.
What network attacks does the course cover? +
You'll learn to detect and mitigate spoofing, eavesdropping, man-in-the-middle attacks, denial of service, and distributed denial of service attacks. You'll also study wireless attacks and evil twin access points.
Do I learn VPN configuration? +
Yes. You'll configure IPsec and SSL VPNs, set up encrypted tunnels, manage key exchange, and implement remote access security using OpenVPN.
Will the course teach intrusion detection? +
Yes. You'll deploy network-based intrusion detection systems, tune Snort signatures, analyze alerts, and understand intrusion prevention methods.
What happens after the course ends? +
You keep your learning materials and stay connected with your trainer and the Greater Insights team for ongoing support.
Do I need prior cybersecurity experience? +
No. You need foundational awareness of cybersecurity principles and basic networking knowledge. Prior hands-on security experience is not required.
What networking knowledge do I need? +
You should understand IP addressing, subnetting, and be familiar with the OSI model. General knowledge of Windows and Linux operating systems is also expected.
Can I take this course if I'm new to IT? +
This course is designed for people advancing from basic networking. If you lack foundational IT or networking knowledge, build those skills first.
Do I need Linux experience? +
Basic familiarity with Linux is helpful since you'll use Kali Linux in labs. If you're new to Linux, you can learn alongside the course content.
Is there an assessment before the course starts? +
No formal pre-course assessment is required. However, reviewing the prerequisites will help you determine if you're ready to begin.
What is the CIA triad and why does it matter in network security? +
The CIA triad stands for Confidentiality, Integrity, and Availability. These three principles form the foundation of all network security strategies and guide how you design defences.
What is defence-in-depth? +
Defence-in-depth is a layered security approach. You use multiple defensive mechanisms at different points in the network so that if one layer fails, others still protect you.
How do firewalls protect a network? +
Firewalls filter incoming and outgoing traffic using rule sets. They can perform packet filtering, stateful inspection, and act as gateways between trusted and untrusted networks.
What is a demilitarized zone? +
A demilitarized zone is a network segment that sits between your internal network and the internet. It hosts public-facing services while keeping your core network isolated and secure.
What are intrusion detection systems and how do they work? +
Intrusion detection systems monitor network traffic for suspicious patterns and known attack signatures. Snort and Suricata are examples that alert you to potential threats in real time.
What is the difference between man-in-the-middle and eavesdropping attacks? +
Eavesdropping means listening to traffic passively. A man-in-the-middle attack intercepts and alters communications between two parties, posing as both.
How do VPNs secure remote access? +
VPNs create encrypted tunnels between remote users and your network. OpenVPN and IPsec ensure data remains confidential and unmodified during transmission.
What is wireless network security? +
Wireless security protects against attacks like evil twin access points and eavesdropping. You use encryption standards, network access control, and endpoint hardening.
What is zero trust and why is it important? +
Zero trust means never automatically trusting any user or device, even inside your network. Every access request must be verified and authenticated.
What jobs can I pursue after this course? +
Graduates move into roles like Network Security Engineer, Network Security Analyst, Security Operations Centre Analyst, Cybersecurity Analyst, Penetration Tester, and Firewall Administrator.
What does a Network Security Analyst do? +
A Network Security Analyst monitors network traffic, detects threats, tunes intrusion detection signatures, analyzes alerts, and responds to security incidents.
What is the career progression in network security? +
You typically start as a Network Security Engineer or junior analyst. With experience, you advance to mid-level Network Security Analyst roles. Senior positions include Security Operations Centre Analyst and Infrastructure Security Engineer.
What skills make network security professionals in demand? +
Expertise in firewall design, intrusion detection, incident response, and VPN configuration are highly valued. Demand for these skills has consistently outpaced supply.
Can I work as a Penetration Tester after this course? +
Yes. Penetration testers use skills covered here—network analysis with Nmap, threat identification, and testing defences—to find security weaknesses in systems.
Do I need certifications beyond this course for career growth? +
This Greater Insights Certificate strengthens your profile. Many employers also value vendor certifications like Cisco or CompTIA. Your trainer can advise on additional certifications that suit your goals.
What is the average Network Security Engineer salary in Mumbai? +
The average Network Security Engineer salary in Mumbai is around ₹6L. The typical pay range runs from ₹4L to ₹8L. Source: AmbitionBox.
What does an experienced Network Security Engineer earn in Mumbai? +
Experienced Network Security Engineers in Mumbai typically earn towards the upper end of the range — up to ₹8L and above at senior or lead level. Specialisations in AI, cloud, or advanced analytics can push compensation higher. Source: AmbitionBox.
What is the average Network Security Analyst salary in Mumbai? +
The average Network Security Analyst salary in Mumbai is around ₹12L. The typical pay range runs from ₹8L to ₹16L. Source: AmbitionBox.
What does an experienced Network Security Analyst earn in Mumbai? +
Experienced Network Security Analysts in Mumbai typically earn towards the upper end of the range — up to ₹16L and above at senior or lead level. Specialisations in AI, cloud, or advanced analytics can push compensation higher. Source: AmbitionBox.
What is the average Security Operations Centre Analyst salary in Mumbai? +
The average Security Operations Centre Analyst salary in Mumbai is around ₹22L. The typical pay range runs from ₹16L to ₹30L. Source: AmbitionBox.
What does an experienced Security Operations Centre Analyst earn in Mumbai? +
Experienced Security Operations Centre Analysts in Mumbai typically earn towards the upper end of the range — up to ₹30L and above at senior or lead level. Specialisations in AI, cloud, or advanced analytics can push compensation higher. Source: AmbitionBox.
What certificate will I receive? +
You'll earn a Greater Insights Certificate of Completion in Network Security — evidence of the practical, job-ready skills you built, and shareable with employers.
Is the certificate recognised or accredited? +
It's a professional certificate of completion — not a university or government accreditation. Its value comes from what it represents: rigorous, live instructor-led training and hands-on projects that employers recognise as real, current skills.
How do I earn the certificate — is there an exam? +
There's no high-stakes exam. You earn the certificate by completing the programme — attending the live sessions and finishing the hands-on projects and labs that demonstrate your skills.
Can I add it to LinkedIn and use it for job applications? +
Yes — it's designed to be shared. Add it to your LinkedIn profile and CV right after completion, and use it in job applications as proof of the skills you built.
Will it help me get hired? +
It signals to employers that you've completed practical, hands-on training in Network Security — a real credibility boost. It's not a job guarantee, but combined with your portfolio and interview it strengthens your profile.
Does the certificate expire? +
No — once earned, it's yours permanently and doesn't expire. You also keep your learning materials to reference throughout your career.
How is the course delivered? +
It's a live, instructor-led online course with hands-on cloud labs — not self-paced video. You attend scheduled sessions with your trainer and classmates, ask questions in real time, and work through labs in the cloud.
How does this compare to a self-paced course? +
The difference is live, instructor-led sessions with a real cohort — real-time help, feedback, and accountability, instead of videos you work through alone. You still keep the recordings and materials, but the live guidance is what keeps you moving.
Is this the same as a university degree? +
No — it's a focused, practical, industry-oriented programme, not an academic degree. You build job-ready skills through live training and hands-on projects, and earn a Greater Insights certificate to show employers. It complements a degree rather than replacing it.
Can I attend if I'm in a different time zone? +
Sessions run at scheduled times (shown on this page). The course is fully online, so you can join from anywhere — check the schedule to confirm the timings work for you, or ask a learning advisor about alternative cohorts.
How much time do I need each week, and can I do it while working full-time? +
The live online format is built for working professionals — sessions are scheduled to fit around a job. Alongside the live sessions, set aside focused time for hands-on labs and practice; your trainer outlines the weekly commitment during onboarding.
What software or equipment do I need? +
Just a computer with a stable internet connection and a web browser. The course runs on cloud labs, so tools are provided online — no heavy local setup. You'll work with the tools your programme uses entirely in the cloud.
What support do I get during the course? +
You work directly with a live instructor throughout. Ask questions during sessions, collaborate with classmates on labs, and get feedback on your work. If you fall behind or hit a technical issue, your trainer and the Greater Insights team help you catch up.
Are sessions recorded — what if I miss one? +
Live attendance is where the real learning happens, so try to attend. If you must miss a session, tell your trainer in advance — your learning materials (and recordings, where available for your cohort) help you catch up. Ask your learning advisor about recording access.
How much does the course cost, and what payment options are there? +
The current fee is ₹12,600, with EMI options from ₹1,138/month. You can also request a quote or talk to a learning advisor for the latest pricing and plans.
Can I get a refund if it's not the right fit? +
Yes — if you've paid in full for a scheduled batch, you can request a full refund within 7 days of enrolling (before the batch starts); after that we can usually arrange a credit or a free transfer to a later batch, and if we cancel a batch you're refunded in full. See our Refund & Cancellation Policy at greaterinsights.in/refund-policy for the details.
What happens to my materials and access after the course ends? +
You keep your learning materials permanently — notes, code, labs, and resources — to revisit anytime as you apply your skills on the job.
Is there any support after the course ends? +
Yes — you stay connected with your trainer and the Greater Insights team after the programme, so you can ask follow-up questions and get guidance as you put your skills to work.
Can I book this for my team, or get 1:1 training? +
Yes — we run private cohorts for companies and offer 1:1 / small-group training. Talk to a learning advisor to scope a team plan or a personalised track.
What happens right after I enrol? +
You'll get onboarding details — how to access the learning platform and cloud labs, your cohort schedule, and a welcome from the GI team. Your learning advisor walks you through the first steps.
Is there peer learning or a community? +
Yes — you learn alongside a live cohort, collaborate with classmates on labs, and stay connected with the Greater Insights community and team beyond the course.
How long is the course? +
The full duration is listed in the course curriculum section on this page — check there for the exact hours and schedule.
Ready to become a Network Security expert?
Course Details

Network Security — a closer look

About this course

This intermediate-to-advanced programme delivers live, instructor-led training in network security across a carefully structured curriculum that moves from foundational principles through to real-world defence techniques. Every session combines direct instruction with hands-on labs using industry-standard tools, so learners apply concepts immediately in realistic environments. The programme culminates in a capstone project where participants secure a full sample network — configuring firewalls, deploying intrusion detection, and establishing a VPN — under trainer guidance, producing a documented secure network design they can reference in professional practice.

What is Network Security?

Network security is the discipline of protecting the integrity, confidentiality, and availability of data as it flows across and between networked systems. It encompasses the protocols, technologies, and practices used to detect, prevent, and respond to threats targeting infrastructure — from the physical layer up through application-level communications. In production environments, network security means designing segmented architectures with demilitarised zones, enforcing rule sets on firewalls such as pfSense and iptables, capturing and analysing traffic with Wireshark and Zeek, and maintaining continuous visibility through intrusion detection systems like Snort and Suricata. Effective network security is not a single control but a layered, defence-in-depth strategy that combines technology, policy, and ongoing monitoring to keep adversaries out and limit damage when they get in.

Why learn Network Security now

Organisations of every size are hardening infrastructure against an expanding threat landscape that includes sophisticated denial-of-service campaigns, man-in-the-middle interceptions, and targeted reconnaissance using tools that defenders must also understand. Professionals who can configure stateful inspection firewalls, tune Snort signatures, deploy OpenVPN tunnels, and interpret Suricata and Zeek alerts are in consistently strong demand across industries. Security operations centres are scaling rapidly, and network-facing roles command a premium precisely because the skill set is hands-on and specific — employers need people who can operate Nmap and Nessus, analyse packet captures in Wireshark, and respond to live incidents, not just describe how those activities work in theory. This programme builds exactly that operational depth.

Who this course is for

  • Network administrators — Professionals managing infrastructure who want to formalise their security skills and implement robust defences across their environment.
  • Junior cybersecurity analysts — Early-career practitioners seeking hands-on depth in firewalls, intrusion detection, and incident response to progress into senior roles.
  • SOC analysts — Operations centre staff aiming to sharpen alert analysis, signature tuning with Snort and Suricata, and structured incident response workflows.
  • System administrators moving into security — Sysadmins with solid OS knowledge who need to add network threat analysis, VPN configuration, and firewall design to their skill set.
  • Penetration testers — Offensive practitioners who want to understand defensive architecture — firewall topologies, DMZs, and IDS rules — to produce stronger findings.
  • IT professionals seeking specialisation — Generalists ready to commit to network security as a career focus and build a portfolio of concrete, demonstrable technical skills.

What you’ll be able to build

By the end you will have built — not just studied — the core systems of the field:

  • Secured segmented network design — A fully documented multi-zone network architecture applying defence-in-depth, with clearly defined DMZ placement and security policy rationale built in Cisco Packet Tracer.
  • pfSense firewall with enforced rule sets — A configured pfSense firewall implementing packet filtering and stateful inspection rules, complete with logging and auditing enabled for ongoing traffic review.
  • Snort intrusion detection deployment — A tuned Snort IDS instance with custom signatures and rules written to detect spoofing, reconnaissance, and denial-of-service patterns against a live lab network.
  • OpenVPN encrypted remote access tunnel — A working OpenVPN deployment configured with IPsec and SSL parameters, authentication controls, and key exchange settings for secure remote connectivity.
  • Wireshark and Zeek traffic analysis workspace — A live packet capture and protocol analysis environment used to identify eavesdropping, man-in-the-middle activity, and anomalous traffic patterns in lab scenarios.
  • Nessus and Nmap vulnerability assessment report — A structured vulnerability assessment of the lab network produced using Nmap for discovery and Nessus for scanning, with findings mapped to remediation actions.
  • Capstone secure network implementation — An end-to-end secured network built under trainer guidance, integrating firewall configuration, Snort IDS, and OpenVPN, with a full design and testing document as the deliverable.

Career paths & salary

Completing this programme opens paths into roles such as Network Security Engineer, Network Security Analyst, SOC Analyst, Cybersecurity Analyst, Infrastructure Security Engineer, and IT Security Specialist, with penetration testing and network administration also natural fits. Demand for practitioners who can operate tools like Snort, Suricata, Wireshark, pfSense, and Nessus in live environments is consistently strong, as organisations struggle to find staff who combine theoretical understanding with genuine hands-on capability. SOC teams in particular are growing across financial services, healthcare, government, and technology sectors, and professionals who can tune detection rules, respond to incidents, and document secure network designs are prioritised in hiring. The practical portfolio built through this programme — real firewall configurations, IDS deployments, VPN setups, and a capstone network — gives graduates tangible evidence of competence that distinguishes them in a competitive and rewarding field.

Network Security in Mumbai: employers & tech hubs

Securing real-time transaction pipelines is one of the most pressing challenges you will face working with Mumbai's financial services sector. Banks, insurance platforms, and fintech companies concentrated in BKC and Lower Parel depend on networks that process millions of transactions daily, and a single breach can expose sensitive customer data or disrupt fraud detection systems entirely. As a Network Security professional here, you build and maintain the encrypted communication layers, intrusion detection frameworks, and access control architectures that keep these systems running without compromise. Beyond finance, Mumbai's large-scale D2C e-commerce brands and gaming studios push you to secure the recommendation engines, supply chain networks, and player behaviour analytics platforms they operate at considerable volume — environments where downtime or data exposure carries serious commercial and reputational cost.

Employers in Mumbai that recruit for Network Security skills include HDFC Bank and Reliance, whose local presence makes them prominent hirers in this space, alongside global financial institutions such as JP Morgan and Goldman Sachs, which maintain significant technology operations in the city. TCS also employs Network Security professionals across client-facing and internal infrastructure projects from its Mumbai base.

Demand for Network Security roles in Mumbai grows year on year, driven by expanding regulatory requirements and the increasing complexity of hybrid financial and e-commerce infrastructure. Whether you are based in Andheri, Thane, or the city centre, live online instructor-led batches run in IST so you can join from anywhere in Mumbai.

Related cyber-security Courses

Explore more courses

Network Security Training in other cities