Web servers & panels
Virtual hosts, reverse proxies, and hosting account administration.
ONLINE SYSTEMS ADMINISTRATION / WEB HOSTING
Thai Cong Lap.
IT System Administrator &
Web Hosting Support Specialist
I manage Linux hosting, troubleshoot web server and database failures, and help recover WordPress sites after outages or malware infections.
01 / ABOUT
How I work
I support Linux hosting environments across the web server, application, and database layers. My work covers routine maintenance, hosting migrations, and urgent recovery.
For incidents, I start with the reported symptom and server logs, check the relevant configuration, then verify the fix from the visitor’s side.
02 / TECHNICAL EXPERTISE
Technical skills
Platforms & CMS
WordPress performance, plugin conflicts, and custom hosting setups.
Databases
Configuration, performance tuning, and backup and restore checks.
Security & maintenance
Malware remediation, webshell removal, log analysis, and firewall rules.
Tools & scripting
Shell-based diagnostics, repeatable admin tasks, and version control.
03 / EXPERIENCE
Operations experience
Selected responsibilities across systems administration and technical support.
- 01 / SYSTEM ADMINISTRATION
Hosting infrastructure maintenance
Maintain Linux hosting environments, review web server and database configuration, and troubleshoot SSL and service issues.
- 02 / TECHNICAL SUPPORT
Incident triage & site recovery
Prioritize urgent support tickets, correlate symptoms with server logs, and investigate WordPress failures and suspected compromises.
- 03 / INFRASTRUCTURE PROJECTS
Hosting & server migrations
Coordinate file and database transfers, validate the destination environment, and check DNS, TLS, and application behavior after cutover.
04 / FREELANCE SERVICES
Hosting & support services
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Hosting setup & migration
Hosting configuration, site transfers, DNS and SSL checks, and post-cutover verification.
WordPress optimization & cleanup
Investigate slow pages and plugin conflicts, remove malware, and review hardening options.
Linux administration & database tuning
Review Linux services and database settings, investigate resource pressure, and check backups.
Technical support & troubleshooting
Trace outages, HTTP errors, and configuration problems through logs and targeted checks.
05 / SELECTED WORK
Selected production work
REAL-TIME MARKET INTELLIGENCE & CONTAINERIZED BACKTESTING
wtrading.laptc.cloud
Containerized quantitative analytics platform on Linux VPS for gold, silver (CME COMEX) and crypto (Bitstamp). Features zero-dependency Node.js 22 LTS architecture, SQLite WAL engine with online hot VACUUM INTO snapshots, automated backup rotation, bidirectional Telegram Bot assistant (@wtrading_ltccloud_bot), multi-timeframe Donchian/ATR momentum engine, and TradingView Lightweight Charts.
DEVOPS DEPLOYMENT & SECURITY HARDENING
weng.laptc.cloud
Containerized Docker Compose infrastructure on Linux VPS, Caddy Reverse Proxy with automated TLS-ALPN-01, Gatekeeper auth, config leak protection (*.env, *.json, *.py, *.sh), 128KB request limit against DoS, XSS sanitization, and Prompt Injection defense.
06 / CONTACT
Tell me what
you’re working on.
Share your hosting stack, what you need help with, and any deadlines. For incidents, include the error and when it started.