$ whoami

Ilia M.

Linux Server Administrator &
DevOps

Designing and maintaining reliable Linux infrastructure with observability, automation and security

## ABOUT

Hands-on experience designing and operating Linux-based infrastructure. Built a full monitoring stack with Prometheus and Grafana, deployed containerized services with Docker, and implemented secure reverse proxy architecture with Nginx.
Focused on reliability, observability and automation rather than just deployment.

## INFRASTRUCTURE

scheme.png

VPS Infrastructure

Ubuntu 24.04.4 LTS server with hardened security configuration (UFW, Fail2Ban). Managed via SSH with key-based authentication.

Nginx Reverse Proxy

SSL/TLS termination with Let's Encrypt certificates. Routes traffic to Docker containers based on domain/subdomain configuration.

Containerized Services

Docker Compose orchestration for Grafana (visualization), Prometheus (metrics collection), and web applications. Internal Docker network for service communication.

Monitoring & Observability

Prometheus scrapes metrics from Node Exporter and application endpoints. Grafana dashboards provide real-time system and application monitoring.

## PROJECTS

VPS Infrastructure & Monitoring Stack

Complete infrastructure deployment with containerized monitoring solution. Reduced attack surface with firewall rules and Fail2Ban, implemented automated encrypted backups to ensure data safety

Docker Prometheus Grafana Nginx UFW Fail2Ban

eCommerce Web App Deployment

Deployed React-based eCommerce application with Nginx reverse proxy. Integrated Supabase backend and resolved complex networking issues.

React Nginx Supabase Docker SSL/TLS

Automated Backup & Recovery System

Implemented automated backup solution using cron jobs and systemd timers. Configured off-site backup storage with encryption.

Bash systemd cron rsync GPG
Documentation

## LIVE MONITORING

Real-Time Server Monitoring

Production infrastructure is continuously monitored using Prometheus and Grafana. Metrics include CPU usage, memory consumption, disk I/O and network traffic.

System Metrics (Node Exporter)
Container Metrics (cAdvisor)
Application Metrics
Open Grafana Dashboard
doggotalent.xyz/grafana
CPU Usage 23%
Memory Usage 41%
Disk Usage 58%
Uptime: 27 days
Last updated: 2s ago

## SKILLS

Infrastructure

  • • Linux (Ubuntu, Debian)
  • • systemd & service management
  • • cron & scheduled tasks
  • • Shell scripting (Bash)
  • • SSH & remote administration

Containers & Orchestration

  • • Docker & Docker Compose
  • • Container networking
  • • Volume management
  • • Image optimization
  • • Multi-container applications

Networking

  • • DNS configuration
  • • TCP/IP fundamentals
  • • Nginx reverse proxy
  • • SSL/TLS certificates
  • • VPN setup & configuration

Monitoring & Observability

  • • Prometheus metrics collection
  • • Grafana dashboards
  • • Node Exporter
  • • Alert configuration
  • • Log analysis

Security

  • • UFW firewall configuration
  • • Fail2Ban intrusion prevention
  • • SSH hardening
  • • Security auditing
  • • Key-based authentication

## CONTACT

SysAdmin • SRE • DevOps — Open for work.