Hire the Best Debian OS Specialists
in Georgia

With 10+ years of experience in Linux, DevOps, cloud, virtualisation, and network security, I deliver reliable, high-performance solutions for modern IT environments. Core Expertise: Linux & Unix Systems: Debian based , RHEL, macOS, Solaris , OpenBSD Networking & Cisco: Routing & switching (BGP, OSPF, EIGRP, MPLS), QoS, HSRP/VRRP/GLBP; CCNA-certified; modern firewall architecture. Security: Network and cloud protection, encryption, VPNs, Zero Trust frameworks, system hardening, compliance, vulnerability management, and security automation (SIEM & SOAR), pentest. Cloud & DevOps: AWS, Kubernetes, Docker, Terraform, Ansible, Puppet, Jenkins, GitHub Actions, Gitlab pipelines Virtualization & Containers: VMware ESXi, KVM, Proxmox, Docker, LXC/LXD Monitoring & Observability: Prometheus, Grafana, Zabbix, ELK stack Web & Load Balancing: Nginx, HAProxy, Varnish, Cloud Load Balancers (AWS ALB/NLB, GCP Load Balancers) Databases: MySQL, PostgreSQL, MongoDB, Elasticsearch Version Control & Collaboration: Git, GitHub, GitLab, Bitbucket

Linux server breaks at 3am? Emails going to spam? I fix Linux servers fast and find the root cause so it doesn't come back. Postfix, DKIM/SPF/DMARC, Nginx, VMware/Veeam, DNS — 6+ years, LPIC-2 certified. Specializing in Linux system administration and Linux server administration across all major distributions. What I work on: Linux Administration — Ubuntu, Debian, CentOS, AlmaLinux, Rocky Linux, RHEL — Server hardening, firewall (iptables/UFW/fail2ban), SSH lockdown, SELinux — LVM storage management, disk partitioning, filesystem tuning — Bash scripting, cron automation, system monitoring Mail Server & Email Deliverability — Postfix, Dovecot, Docker-based mail stacks — DKIM, SPF, DMARC configuration and troubleshooting — Email delivery to Gmail/Outlook, blacklist removal, spam reputation fixes — DNS records: MX, A, PTR, TXT — full mail infrastructure setup DNS & Network Infrastructure — BIND, Cloudflare, cPanel/WHM DNS management — Zone file configuration, propagation troubleshooting — Reverse DNS, domain migrations, SSL/TLS (Let's Encrypt, Certbot) VMware & Backup — VMware ESXi, vSphere administration — Veeam Backup & Replication — backup jobs, restore, DR planning — Proxmox VE, VM provisioning and migration Web Server & Database — Nginx, Apache — virtual hosts, reverse proxy, SSL termination — MySQL, MariaDB — installation, tuning, user management — Docker, Docker Compose — containerized service deployment Recent Upwork results: ✓ Set up Docker-based open-source mail server from backup — completed in 2 days ✓ Configured VPS mail server with DKIM/SPF/DMARC for Gmail delivery — 5★ ✓ Migrated multiple websites to Cloudflare Pages across GoDaddy/Hostinger/GitHub ✓ Active Directory migration Windows Server 2008 R2 → 2019 — 5★ ✓ "Giorgi is that guy that finds a solution to your problem" — client review Available for one-time fixes, full server setups, and ongoing maintenance contracts. Send me your setup details and I'll respond within a few hours.

I help businesses and IT teams build stable and cost effective systems. I have more than 14 years of experience in a major security company, working with projects of different sizes, from small offices to large distributed environments. My main areas of work: • Windows Server infrastructure: AD, DNS, GPO, RDS, Hyper-V, Failover Clustering • Networking: MikroTik, UniFi, VPN setups (site to site and remote access) • Virtualization: Hyper-V, VMware (ESXi, vSAN), Proxmox VE & PBS • Backup and storage: Veeam, Synology, QNAP, DAS/NAS systems • Remote management infrastructure: RustDesk, VNC, NanoKVM • Cloudflare Tunnels • Drake Tax software support I focus on practical solutions that meet business needs and stay in the budget. Whether you need a new setup or help maintaining an existing one, I try to make things reliable and simple to manage. Certifications: MCSE | MCSA | AZ-104 Open for long term remote roles or hybrid setups.

Linux System Administrator with rich experience in infrastructure management. Learning and working on solutions with Cloud Computing (AWS,GCP,Azure,DO) Platform,etc.) Here with experience to solve and help in many kind of problems on System and Network side. System Administration: - RHEL Based Linux Servers - Debian Based Linux Servers - MS Based Servers (Microsoft Windows Server, AD, DNS, DHCP) Backup: - Veeam Network: - Cisco Routing&Switching - Mikrotik Routers&; Switches, Wifi - Unifi Routers&;Switches,Wifi Database: - MySQL - MSSQL - PostgreSQL Other: - cloud AWS,GCP,Azure,DO and on-prem deployments - virtualization with VMWare, KVM, Proxmox - Expertise in migrating Domain and DNS from various registrars - Bind, TinyDNS Server Configuration - monitoring systems (Nagios, PRTG, Zabbix, Prometheus) - automated backups - automated data/log rotation - load balancers - ELK, Kibana

I am an experienced Linux System Administrator (Ubuntu, Debian, CentOS, RHEL etc...) FreeBSD Unix. I have a very strong experience of running and maintaining vSphere (ESXi, Vcenter) and also KVM, OpenVZ, Xen and other virtualization solutions I am a intermediate graphics designer and have a good skills in Adobe Photoshop, Illustrator, AfterEffects

5 years as a Linux System Administrator with DevOps background with 3 year experience in the area. Reliable, hardworking, sociable. Ready to meet new challenges and get more experience as freelancer.