Oleksandr Khambir

Experienced Linux System Administrator with over 20 years of hands-on experience in hosting infrastructure, server administration, and website support.

My core expertise includes:

• Linux server administration;
• VPS and dedicated server management;
• shared hosting support;
• WordPress and OpenCart hosting support;
• website and server migrations;
• server and website performance optimization;
• email server setup and troubleshooting;
• DNS and SSL configuration;
• backup and disaster recovery;
• server hardening and basic security;
• troubleshooting and emergency issue resolution.

Technologies and platforms I work with:

• Linux (AlmaLinux, Ubuntu, Debian, CentOS);
• cPanel, DirectAdmin, Plesk, ISPmanager, Webuzo, VestaCP;
• Apache, Nginx, LiteSpeed;
• MySQL/MariaDB;
• Docker;
• Cloudflare.

I have extensive experience in customer technical support and handling urgent production issues where fast response and stability are critical.

Available for one-time projects, long-term support, and emergency troubleshooting tasks.