# Shahriar Islam (শাহরিয়ার ইসলাম)

> Shahriar Islam (known as Tafsir / তাফসির) is a Bangladeshi Systems Architect, Linux Infrastructure Specialist, Co-Founder & CTO at Contextser, and Founder of Syslic. Over 7+ years of hands-on expertise (since 2017) building high-availability server clusters, enterprise Linux infrastructure, and mission-critical cloud deployments with fault-tolerant continuous availability and zero data loss.

## Identity & Disambiguation
- **Full Legal Name**: Shahriar Islam
- **Bengali Name**: শাহরিয়ার ইসলাম
- **Alias / Nickname**: Tafsir (তাফসির)
- **Primary Website**: https://shahriarislam.com
- **Nationality**: Bangladeshi
- **Current Location**: Dakshin Khan, Dhaka-1230, Bangladesh
- **Core Specialization**: Linux System Administration, High-Availability Clusters, Cloud Architecture, LiteSpeed/Nginx Optimization, Web Hosting Infrastructure.

## Leadership & Ventures
- **Contextser (contextser.com)**: Co-Founder & Chief Technology Officer (CTO). Leading technological architecture, AI backend pipelines, scalable distributed server clusters, and infrastructure security.
- **Syslic (System License)**: Founder. Providing server licensing, enterprise hosting automation, software licensing infrastructure, and sysadmin support for global clients.
- **BD White Host (bdwhitehost.com)**: Founded in 2017 at age 17, marking the beginning of Shahriar's 7+ year journey into mission-critical Linux server hosting and systems engineering.

## Technical Skills & Infrastructure Expertise
- **Operating Systems**: Red Hat Enterprise Linux (RHEL), AlmaLinux, Rocky Linux, CloudLinux, Debian, Ubuntu Server, CentOS.
- **High-Availability & Clustering**: Multi-node HA Clusters, Load Balancing, Zero-Downtime Server Migrations, DR (Disaster Recovery) Offsite Backups.
- **Web Servers & Optimization**: LiteSpeed Enterprise, Nginx Reverse Proxy, Apache, OpenLiteSpeed, QUIC.cloud CDN, Cloudflare Enterprise/Pro configurations.
- **Web Hosting Control Panels & Automation**: cPanel / WHM, WHMCS, DirectAdmin, Plesk, Virtualmin, automated billing and provisioning APIs.
- **Server Security & Hardening**: ConfigServer Security & Firewall (CSF), LFD, Imunify360, ModSecurity rulesets, Kernel-level security tuning, DDoS mitigation.
- **Database & Caching Systems**: MariaDB Galera Cluster, MySQL replication, Redis, Memcached, OPcache tuning.

## Verified Profiles & Social Links
- **LinkedIn**: https://www.linkedin.com/in/shahriarinfra
- **GitHub**: https://github.com/shahriar221
- **Facebook**: https://www.facebook.com/shahriarislam24/
- **X (Twitter)**: https://x.com/shahriarinfra
- **WhatsApp**: https://wa.me/8801781778980
- **Email**: hi@shahriarislam.com

## Official Pages
- [Bengali Homepage](https://shahriarislam.com/): Official Bengali portfolio and infrastructure case stories.
- [English Homepage](https://shahriarislam.com/en/): Official English biography, ventures, and infrastructure services.