~/Cojan.ro
bash - 80x24
$
whoami

Linux System Administrator

Professional SysAdmin specialized in web hosting, virtual servers, and classic Linux administration.

$
cat about.txt

Welcome to my digital workspace. I'm a Linux system administrator with deep expertise in traditional server management, focusing on reliability, security, and performance.

certifications.sh
$
./list-certifications.sh --all
  • →
    ARISTA Networks: Network Automation Professional Certificate Feb 2025
  • →
    Microsoft Security Essentials Professional Certificate Feb 2025
  • →
    NetOps (DevOps for Network Engineers): Automating Networks Feb 2025
  • →
    cPanel Certified Partner Accreditation Nov 2025
  • →
    cPanel & WHM System Administrator II (CWSA-2) Sep 2024
  • →
    WHM Administration Certification Exam (CWA) - Tier 3 Nov 2022
  • →
    cPanel Professional Certification Exam (CPP) - Tier 2 Nov 2022
skills.sh
$
./list-skills.sh --expertise

[+] Core Competencies

  • → Linux Server Administration
  • → Web Hosting Solutions
  • → Virtual Private Servers (VPS)
  • → Apache/Nginx Configuration
  • → MySQL/MariaDB Management

[+] Technical Stack

  • → Bash Scripting & Automation
  • → DNS Management (Cloudflare)
  • → Security & Firewall Setup
  • → Backup & Recovery Solutions
  • → Performance Optimization
$ Status: ● Available for freelance projects
experience.log
$
tail -f experience.log

Web Hosting Management

Managed cPanel/WHM, DirectAdmin, ISPConfig, WHMCS, HostBill (and more) environments for multiple clients since 2009

Infrastructure Automation

Lead technical operations and automation for IT/telecom services, streamlining infrastructure performance

Data Center Operations

Managed virtualization and telecom projects in datacenter environments at LayerBridge and some other DCs

Network Engineering

Configured and maintained BGP, IPv6, RPKI, OSPF across Cisco, Juniper, Arista, and pfSense platforms

Cloud & On-Prem Infrastructure

Managed hybrid infrastructure with focus on monitoring, security, and performance optimization

Virtualization Deployment

Implemented and managed VMware, Proxmox, Ovirt, OpenVZ, SolusVM (and more) environments for production use

Linux System Administration

15+ years managing Debian, Ubuntu, CentOS, Red Hat, and Fedora systems in production environments

Security & Compliance

Implemented security measures and compliance protocols across hosting and telecom infrastructure

Technical Leadership

Founded and led technical operations for multiple companies including ENGINYRING EUROPE and LayerBridge

Routing & Network Protocols

Expertise in Cisco, Arista, Quagga, BIRD routing daemons, BGP peering, Internet Exchanges, IP deployment and more

blog.sh
$
ls -la ~/latest_articles

Why I Run Debian on Production Servers (And You Probably Should Too)

Debian Stable is boring. That's exactly why it's perfect for production servers where downtime costs actual money.

Nov 14, 2025
Read more →

Zero Tax on Minimum Wage in Romania: Impossible Dream or Necessary Reform?

Complete analysis based on comprehensive academic research of eliminating taxes on minimum wage in Romania - effects on employees, the economy, and the state budget

Oct 23, 2025
Read more →

How to Configure a Server to Run Unattended for Years

Practical guide to setting up automated updates, monitoring, backups, and maintenance tasks so your Linux server can run reliably without constant babysitting

Oct 18, 2025
Read more →
$ view_all_posts.sh
connect.sh
$
echo "Ready to collaborate?"

Whether you need server setup, hosting management, or ongoing Linux administration support, I'm here to help.

$ ./contact.sh █