Portfolio

🚀 Certified Linux System Administrator | DevOps | Server Optimization | Cybersecurity | DRC Solutions

Hi, I’m Feri — a seasoned Linux System Engineer with 10+ years of hands-on experience managing servers, cloud platforms, and secure infrastructures for clients around the globe.

I specialize in building stable, secure, and scalable Linux systems that run 24/7. Whether you’re migrating a website, hardening your infrastructure, or setting up a secure email server, I’m here to help.

✅ What I Do:

  • 🔧 Linux Server Setup & Maintenance (Ubuntu, CentOS, Rocky, AlmaLinux, Debian)
  • ⚙️ Performance Optimization (Nginx, Apache, MariaDB/MySQL, Redis, etc.)
  • 🔐 Build Cybersecurity-Ready Servers
    • Hardened SSH, firewalls, Fail2Ban, SELinux/AppArmor
    • Automated patching, brute-force protection, and malware scanning
    • SSL/TLS & secure service configurations
  • ☁️ Cloud & Virtualization Management (Proxmox, VMware, KVM, XenServer)
  • 📦 Web & App Migration (cPanel, WHM, Virtualmin, VPS-to-VPS, on-prem to cloud)
  • 📧 Email Server Setup & Troubleshooting (Postfix, Dovecot, Zimbra)
  • 🔁 Disaster Recovery (DRC) Solutions – replication, backup planning, and failover setups
  • 📊 Monitoring & Auditing – Uptime checks, log analysis, alerts, and performance audits

🔧 Tools I Work With:

  • Bash, Ansible, rsync, cron, netdata, fail2ban, iptables/ufw
  • Proxmox VE, AWS EC2/EBS/S3/VPN, WHM/cPanel, Virtualmin, PowerDNS
  • Zimbra, Postfix/Dovecot, Let’s Encrypt, SSL, acme.sh
  • RAID/LVM/storage tuning, snapshot & backup automation

🌐 Why Clients Choose Me:

  • Fast response, detailed documentation, and reliable delivery
  • Able to work independently or as part of a DevOps team
  • Understand the importance of uptime, data integrity, and scalability
  • Security-focused from day one — your systems are protected by design
  • I treat every system like it’s my own — because it reflects your business

Need a cybersecure VPS, hardened email server, or a worry-free migration? Let’s work together and get it done right.

📬 Send me a message — I usually reply within the hour.

📧 Email: ferisetyawankun@gmail.com

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