🧠 Raspberry Pi 5 NAS Gateway

Built a network-attached storage and filtering gateway using Raspberry Pi 5 (16GB), 2TB SSD, and Ubuntu 23.10. Integrated AdGuard Home for DNS-level ad blocking, Samba for file sharing, and NextDNS for security telemetry. Exposed via drive.psritej.com.

🔐 DevSecOps Pipeline with GitLab & OWASP

Created a fully automated GitLab CI/CD pipeline with built-in security gates using Trivy, OWASP Dependency-Check, and Snyk CLI. Used Terraform to deploy secure multi-AZ EKS clusters with IAM roles, secrets scanning, and audit logging.

📡 NextDNS Smart Firewall Setup

Set up a personalized DNS-based smart firewall across all home devices. Integrated with AdGuard Home to block YouTube, Instagram, and Amazon ads. Routed through a static IP gateway connected to the TP-Link AXE7800 router for low-latency blocking.

☁️ AWS Event-Driven Monitoring Stack

Deployed an event-driven Lambda + CloudWatch + SNS stack to monitor EKS pod restarts, unauthorized IAM attempts, and suspicious S3 uploads. Used IAM policy simulation for testing and budget alarms to prevent cost overruns.

📁 Public Research + Source Code

All research-related code, infrastructure-as-code scripts, and datasets are published on GitHub under the @sritej1 profile.