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

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

Currently, I work at Wowrack, Inc. as a Support Engineer (Tier-2 Linux System Administrator), where I handle advanced infrastructure issues, performance tuning, and Linux server management for enterprise and cloud environments.

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.

🎓 My Certifications:

✅ 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

💼 Work with me on Upwork: Hire Me on Upwork

🔗 Connect on LinkedIn: linkedin.com/in/ferisetyawan