- Linux ( Debian, Ubuntu, CentOS )
- Networking (DHCP, DNS, Proxy, Firewall, VPN, FTP, SFTP) + pfSense, squid proxy
- Web Server (Apache, nginx, Tomcat) + SSL
- Jenkins + GIT
- Shell Script + Python
- AWS EC2, RDS, Route53, ELB, Lightsail
- Digital Ocean droplet and managed services (database, redis...)
- Oracle Cloud, Google Cloud
- cPanel + WHM + Interworx
- Google Workspace Management (Former GSuite)
- Docker Container, Deployment, and Management
- Server Setup, Security Hardening, Optimization
- MySQL Service Crash recovery
- Debugging and Troubleshooting FTP, DNS, Mail Servers
- Backup Configuration and infrastructure deployment
- Server Disk Management
- Website and Email Migration
- Server Setup for web hosting environment
- WordPress, Joomla Setup and Configuration
- SSL installation, configuration, troubleshooting
- Extreme Network EXOS - EAPS, ELRP, VLAN, port group, dhcp-snooping, access-list, WiNG5.