Chetan Akre
Cybersecurity, Networking & IoT Security
I build and investigate security systems across Linux, networks, applications and connected devices.
$ whoamicybersecurity student & builder$ cat focus.txtnetwork security, IoT security, security operations
Technical Areas
Major areas of study and hands-on work.
Network Security
Scanning, traffic analysis, firewall configuration, and network segmentation.
Linux
Command-line work, scripting, system administration, and security hardening.
Security Operations
Log analysis, SIEM, intrusion detection, and alert investigation.
Offensive Security
Vulnerability scanning, web security testing, and penetration testing labs.
Digital Forensics
Disk imaging, artifact analysis, timeline investigation, and evidence handling.
Security Tooling
Nmap, Wireshark, Burp Suite, Splunk, Suricata, and custom Python tools.
IoT / Embedded Security
Raspberry Pi, ESP32, Arduino, sensor networks, and device security.
Featured Projects
Real projects with code, testing, and documented results.
Network Security Scanner
A Python tool to scan local subnets, discover active hosts, identify open TCP services, and check basic service configurations. Tested in a local lab environment.
IoT Security & Access Control System
Lab security and environment monitoring system built with Raspberry Pi and ESP32 nodes. Implemented MQTT telemetry, sensor inputs, and localized network access controls.
Embedded & Autonomous Drone System
Hardware integration and telemetry processing platform linking a Raspberry Pi companion computer with a flight controller, camera module, and sensor telemetry.
Security Labs
Hands-on lab environments for practical security learning and testing.
SOC & SIEM Log Monitoring Lab
Security monitoring environment testing log collection, syslog forwarding from Linux endpoints, alert rule logic, and basic incident triage.
pfSense Network Segmentation & Firewall Lab
Virtual network lab built with pfSense to test VLAN segmentation, firewall rule evaluation order, NAT configuration, and DNS/DHCP services.
Network Security & Packet Analysis Lab
Practical laboratory focused on protocol analysis, Nmap scanning mechanics, Wireshark traffic inspection, and firewall behavior verification.
Latest Writeups
Technical documentation of tools, techniques, and findings.
Linux Authentication Log Analysis: Investigating SSH Brute-Force Attempts
Practical analysis of failed SSH connection attempts in a Linux test lab using journalctl, auth.log, grep, and awk to identify source IPs, targeted accounts, and event frequency.
Nmap: Service Enumeration and Scan Timing in Lab Environments
Comparative analysis of SYN scan vs connect scan behavior, banner grabbing, and timing templates in a segmented test network.
Wireshark: Investigating TCP Traffic and Handshakes
Step-by-step analysis of TCP three-way handshakes, connection resets, and packet retransmissions in a controlled lab network.
GitHub
Source code, documentation, and project repositories.
chetanakre
Security projects, lab documentation, and tools.
Certifications & Training
Formal coursework and verified technical credentials.
Digital Forensics
SWAYAM (NPTEL)
Comprehensive academic and practical coursework covering digital evidence acquisition, file system forensics, Windows event reconstruction, browser artifact extraction, and chain-of-custody verification.
Cyber Crime First Responder
CCIO, ISSI
Specialized training focused on immediate incident triage, live response procedures, digital crime scene containment, evidence sealing, and preliminary reporting for law enforcement and legal compliance.
IoT & Embedded Security Workshop
Technical Workshop
Hands-on workshop covering hardware attack surfaces, micro-controller communication security, sensor bus sniffing, and practical defense implementations on embedded systems.
Security Operations & Defense
Industry Certification Path
Currently preparing for advanced security operations and detection engineering certification, focusing on multi-source SIEM ingestion, real-time alert triage, and threat mitigation.