नमस्ते!
Harish Rajput
System & Network Engineer
Passionate about Networking, Linux, Cybersecurity, Ethical Hacking, Cloud Computing, IoT, Neural Networks, Quantum Computing, Technical Research, and Philosophy.
Passionate about Networking, Linux, Cybersecurity, Ethical Hacking, Cloud Computing, IoT, Neural Networks, Quantum Computing, Technical Research, and Philosophy.
Exploring technology, cybersecurity, research, privacy, and practical solutions for a safer digital world..
A complete 90-topic technical guide covering hacker psychology, phishing, malicious apps, permissions, account security, mobile threats, detection, incident response, and practical defense techniques.
Read Full Guide →Technologies I work with
Cisco, Routing, Switching, VLAN, VPN, Firewall
Ubuntu, CentOS, Shell Scripting, System Administration
VAPT, OWASP, Nmap, Wireshark, Burp Suite
AWS Basics, Azure Basics, Virtualization
AD DS, DNS, DHCP, Group Policy
Python, HTML, CSS, JavaScript
Blogs, Documentation, Research Papers
Git, GitHub, VMware, VirtualBox, Docker
My Professional Journey
Managing enterprise networks, Windows Servers, Linux systems, firewall configuration, virtualization, and IT infrastructure support.
Worked on routing, switching, troubleshooting, VLANs, VPNs, monitoring, and technical support.
Learned Linux administration, networking fundamentals, cybersecurity tools, and server management.
Some of my recent work
A responsive personal portfolio built with HTML, CSS, and JavaScript to showcase my skills, projects, blogs, and research.
View Project →Built a virtual enterprise network using Cisco Packet Tracer and monitored network traffic using Wireshark.
View Project →Configured Apache, SSH, firewall rules, user management, and security hardening on Ubuntu Server.
View Project →Sharing knowledge through technical writing
A complete 90-topic technical guide covering hacker psychology, phishing, malicious apps, permissions, account security, mobile threats, detection, incident response, and practical defense techniques.
Read Full Guide →Learn the basics of network scanning and host discovery using Nmap.
Read More →A practical guide to the Linux commands every system administrator should know.
Read More →A beginner-friendly guide to how computers communicate over a network.
Read More →Exploring technology through research and analysis
An overview of Software Defined Networking, its architecture, advantages, and future impact on enterprise networks.
Read Research →Understanding the Zero Trust architecture and how organizations can strengthen modern cybersecurity.
Read Research →Research on emerging cloud technologies, AI integration, serverless computing, and hybrid cloud adoption.
Read Research →