Expert articles, career guides, and deep-dives on networking, cloud, cybersecurity, and more — crafted by InfoNexus instructors and industry professionals.
Understand Open Shortest Path First (OSPF) from the ground up. We cover LSAs, areas, DR/BDR elections, and walk through a real multi-area enterprise configuration that mirrors what you'll do on the CCNA exam.
A practical cost-performance breakdown for enterprise architectures.
Step-by-step guide to deploying Zero Trust in a corporate environment.
Automate repetitive network tasks with clean, readable Python scripts.
A thorough breakdown of VTP modes — Server, Client, and Transparent — with real lab configurations and common pitfalls to avoid.
Learn to architect fault-tolerant multi-AZ networking on AWS from scratch with practical Terraform examples.
From misconfigured ACLs to weak VPN ciphers — real-world examples and how to secure your infrastructure.
A proven, structured study roadmap with daily tasks, topic priorities, and the best practice resources for 2025.
Feature-by-feature comparison of SD-WAN and MPLS, with real cost analysis for mid-sized enterprise deployments.
Master Azure VNet peering, NSGs, and hub-spoke topology with step-by-step portal and CLI walkthroughs.
Find the content that matters most to your learning journey
OSPF, BGP, VLANs, Subnetting
64 ArticlesAWS, Azure, GCP, Terraform
48 ArticlesCEH, Firewalls, Zero Trust
39 ArticlesNetmiko, Ansible, DevNet
31 ArticlesResume, Interviews, Salary
27 ArticlesCCNA, CompTIA, AWS, CCIE
22 ArticlesRHEL, Ubuntu, Shell Scripting
18 ArticlesDocker, Jenkins, Kubernetes
15 ArticlesEverything you need to know before enrolling in our industry-leading Networking program.
Our Networking course is built by CCIE-certified engineers who have designed networks for Fortune 500 companies. From Day 1, you work on live Cisco hardware and cloud environments — not just theory.
Every module maps directly to real job requirements, and our dedicated placement cell has successfully placed 2500+ graduates in companies like TCS, Infosys, HCL, and Wipro.
Your step-by-step journey from zero to network engineer — one month at a time.
OSI & TCP/IP models, binary arithmetic, subnetting, IPv4 & IPv6 addressing, key protocols (DNS, DHCP, HTTP). Lab: Build your first network in Packet Tracer and GNS3.
Cisco switch configuration, VLANs, trunk ports, Inter-VLAN routing (Router-on-a-Stick & Layer 3 switches), Spanning Tree Protocol, EtherChannel. Lab: Multi-switch campus topology.
Static routes, RIPv2, OSPF (multi-area), EIGRP, BGP fundamentals, route redistribution, PBR, first-hop redundancy (HSRP/VRRP). Lab: ISP simulation with full dynamic routing.
Firewalls, ACLs, NAT/PAT, site-to-site VPN, remote access VPN, 802.1X port security, AAA with RADIUS/TACACS+, Cisco ASA/FTD basics. Lab: Secure a corporate network perimeter.
AWS VPC, subnets, route tables, Security Groups, Azure VNets, SD-WAN concepts, WLAN standards (802.11ax), Cisco WLC, enterprise wireless deployment.
Design and deploy a complete enterprise network (capstone project). CCNA exam preparation, mock interviews, resume & LinkedIn optimization, referrals to 150+ hiring partners.
"The InfoNexus blog was my go-to resource even before I enrolled. The OSPF article alone was clearer than three books I bought. Enrolled, passed CCNA first attempt, now at HCL!"
"I found the blog while looking for subnetting help on Google. The quality of articles is incredible — it's how I discovered InfoNexus. Best decision of my career. Placed in 3 weeks."
"From reading the AWS VPC article on this blog to actually deploying cloud networks at a startup — InfoNexus made that happen. The content, the course, and the placement support are world-class."
We don't stop at training — we get you hired. Our dedicated placement cell works relentlessly until you land your dream IT role.
ATS-optimized resumes crafted for networking & IT roles by HR experts.
10+ technical and HR mock interviews before your final placement rounds.
Complete LinkedIn optimization to attract recruiters from top IT companies.
Warm introductions to hiring managers at our 50+ partner organizations.
Join 500+ students who've transformed their lives with InfoNexus. New batches start every month — secure your seat today!