System network administration cybersecurity
Think Bigger.
Move Smarter.
Grow Stronger.
Welcome to my personal space! I am Bui, a dedicated SNAC student at PNC.
Think Bigger.
3+
ACTIVE CERTIFICATIONS
97%
LINUX & BASH LOGIC
24/7
SERVER UPTIME DEPLOYED
93.3%
PNC LINUX MISSION SCORE
MY CORE COMPETENCIES
Professional IT & Cybersecurity Solutions
Delivering secure network infrastructure, system administration, and robust server management.
📊 Network Infrastructure:
Configuring secure local networks, routers, switches, and firewalls for maximum reliability
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🚀 System Administration:
Managing Linux/Ubuntu server environments, system services, and automated maintenance.
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🤝 Web & SSL Security:
Deploying web applications, configuring HTTPS/SSL certificates, and server hardening.
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💡 Database Management:
Configuring remote MySQL/MariaDB databases with secure access controls and backups.
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ABOUT MY BACKGROUND
A Dedicated Approach to Network Security & Systems
I am a System Network Administration and Cybersecurity student at Passerelles Numeriques Cambodia (PNC), Class of 2027. My focus is on configuring multi-instance server architectures, securing web applications, and enforcing industry-standard security protocols.
Hands-on experience with AWS EC2 and remote server orchestration.Proficient in Apache HTTP server hardening and Let's Encrypt SSL/TLS deployment- Skilled in database management and automated backup strategies
- Committed to continuous learning in cyber defense and network infrastructure
My KEY SKILLS
Core Expertise & Technical Specializations
Practical skills applied in real-world server deployment and security setups.
Server Deployment
Deploying and maintaining multi-server environments, web applications, and database connections.
Cybersecurity Hardening
Securing web traffic with HTTPS, configuring firewall rules, and mitigating security vulnerabilities.
System Maintenance
Automating backup schedules, monitoring system error logs, and verifying active ports.
PORTFOLIO OWNER
Project Lead & System Engineer
PNC student specializing in Network Administration & Cybersecurity.
BUI LIN
System Network & Cybersecurity
★★★★★
PROJECT SCOPE
Project Deployment Phases
Technical milestones executed during the WordPress deployment.
Infrastructure
Phase 1
- AWS EC2 Instance Provisioning
- Ubuntu Server Environment Setup
- Remote MySQL Database Configuration
- Security Group & SSH Port Rules
KEY FOCUS
Security & SSL
Phase 2
- Apache Web Server Hardening
- Let’s Encrypt SSL/TLS Certificate
- Enforced HTTPS Redirection (Port 443)
- UFW Firewall Rules Setup
Verification
Phase 3
- Automated Database Dump Scripts
- Cron Job System Backups
- Active Port & Log Auditing
- Live Domain Verification via DuckDNS
PROJECT HIGHLIGHTS
Key Achievements & Verification
Technical goals and deployment milestones successfully verified.
★★★★★
“Successfully configured a remote MySQL database on a dedicated AWS EC2 instance with restricted security group access rules.”
Cloud Infrastructure
AWS & Database Deployment
★★★★★
“Enforced SSL/TLS HTTPS encryption using Let’s Encrypt certificates and hardened Apache web server settings.”
Security & Encryption
System Security
★★★★★
“Implemented automated MySQL database backups and file archiving using customized shell scripts and scheduled cron jobs.”
Automation & Maintenance
System Backup Strategy
ACADEMIC & PROFESSIONAL CREDENTIALS
Certifications & Qualifications
Official certifications in networking, Linux system administration, and shell scripting.
CISCO ACADEMY
CCNA: Introduction to Networks
Certified by Cisco Networking Academy & PNC on Sep 06, 2026. Covers networking fundamentals, IP addressing, and Ethernet protocols.
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RED HAT
Red Hat Linux Fundamentals (RH104)
Certificate of Attendance from Red Hat (Sep 29, 2026). Covers essential Linux administration, command-line operations, and system tasks.
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PNC SNAC
Linux Command-Line Mission (Level 1)
Certificate of Achievement with a score of 112/120 (Apr 09, 2026). Demonstrates advanced shell logic and Bash parsing mastery.
View Certificate →
Ready To Secure & Optimize Your Infrastructure?
Let’s discuss network architecture, system administration, and custom cloud security solutions.