LE NGUYEN KHANH HUNG

SYSTEM ADMINISTRATOR

📞 0985 482 697 | 📧 khanhhung0911@gmail.com | 📧 khanhhung@khanhhung.info.vn
🎂 09/11/1990 | 📍 Go Vap, Ho Chi Minh City
🌐 khanhhung.info.vn

ABOUT ME

As a System Administrator, I am responsible for company systems including Operating Systems, NAS, servers, virtualization platforms, and mail servers.I ensure all services are running smoothly, securely, and reliably.

WORK EXPERIENCE

System Administrator
11/2019 – Present
3T Information Technology Joint Stock Company

  • Install, configure, and manage Windows and Linux servers.
  • Administered and maintained Windows and Linux servers to ensure system stability and security.
  • Configured and managed Linux host-based firewalls using UFW and iptables, implementing network access control rules, service-level restrictions, and IP-based traffic filtering to enhance server security.
  • Provided technical support and troubleshooting for end users when required.
  • Managed Windows Server services including Active Directory, Domain Controller, Group Policy (GPO), and DNS.
  • Deployed and maintained virtual machines on VMware vSphere to support production systems.
  • Deployed, operated, and maintained Privileged Access Management (PAM) solutions, including ManageEngine PAM360 and JumpServer.
  • Operated and maintained Zimbra Mail Server to ensure reliable email services.
  • Deployed and maintained Proxmox Mail Gateway for email security and filtering.
  • Managed Synology NAS systems, including permission configuration and system monitoring via third-party tools such as Telegram, Slack, and Microsoft Teams.

EDUCATION

Ho Chi Minh University of Natural Resources and Environment
09/2008 – 09/2011
Major: Information System

SKILLS

Core Skills
  • Linux (7 years)
  • NAS (7 years)
  • System Administration (7years)
  • VMware (7 years)
  • Windows Server (7 years)
  • Zimbra Mail Server (7 years)
  • Docker (7 years)
  • Ansible (2 year)
  • Grafana (2 year)
  • n8n (2 year)
  • Prometheus (2 year)
  • Kubernetes (2 year)
  • Microsoft Power Apps (2 year)
Soft Skills
  • Team player, friendly, and cooperative
  • Positive attitude and self-disciplined
  • Fast learner with hands-on ability
  • Logical and analytical thinking
  • Eager to learn and grow professionally

FOREIGN LANGUAGE

English: Reading & writing (good), listening & speaking (basic)

HIGHLIGHT PROJECTS

MatterMost (01/2025 – Present)
Personal 'Slack-alternative' project
https://chat.khanhhung.info.vn

Grafana + Prometheus (01/2024 – Present)
Personal monitoring project
https://grafana.khanhhung.info.vn

n8n (01/2024 – Present)
Personal workflow automation learning project
https://n8n.khanhhung.info.vn

Mail Server (iRedMail) (01/2023 – Present)
Personal mail server
khanhhung@khanhhung.info.vn

CERTIFICATES