Hire the Best Unix System Administrators in Dhaka, BD

Hi, I'm Shafail Shafa. I've been work as freelance web developer and Linux system administrator for more than 12 years. I specialize in phpBB forum software and WordPress sites. My phpBB experience includes, customization, modification and complete custom theme and extension development. My WordPress experience includes maintenance , site builds, error fix, customization, security and malware removal, hacked site recovery etc. Linux server admin tasks includes: Linux server maintenance, configuration, hardening, security for web and DNS server, email server and application server. I also do website and email migration or transfer from one host to another, including DNS configuration and SSL setup. Let me know what you need, we can discuss further if needed.

Hi, I’m Mir Alamin — Linux System Administrator & Web Developer with 10+ years of experience. I specialize in fixing slow, hacked, broken, or underperforming WordPress sites and Linux servers. Most problems I solve the same day. I work directly with businesses and website owners to build, fix, secure, optimize, and maintain the technology behind their websites. ## Why clients hire me 🏆 500+ successful projects ⭐ 500+ five-star reviews ⏱️ 2,000+ Upwork hours 💻 10+ years of professional experience 🎓 40+ verified skill certifications I am also the specialist behind "WebCare Pro" website, where I provide hands-on web infrastructure, server administration, security, performance, and website services. What I can help with 🖥️ Linux Server Administration ✔Linux VPS and dedicated server management ✔Server deployment and configuration ✔Nginx, Apache, and LiteSpeed ✔Server hardening and security ✔Firewall, Fail2ban, SSH, and access security ✔Performance and resource optimization ✔Server monitoring and maintenance ✔Server migration and infrastructure changes ⚡ Website Speed & Performance ✔Core Web Vitals optimization ✔Google PageSpeed optimization ✔TTFB and server response optimization ✔Nginx/LiteSpeed/Apache tuning ✔Redis and server-side caching ✔JavaScript and asset optimization ✔Image optimization and modern delivery ✔Database and query optimization 🔐 Website Security & Hack Recovery ✔Malware detection and removal ✔Hacked website recovery ✔Security vulnerability fixes ✔WordPress security hardening ✔File integrity monitoring ✔Firewall and WAF configuration ✔Blacklist and security issue remediation ✔Post-incident security improvements 🌐 AI-Ready & Modern Website Development I build modern websites that are designed not only for traditional search engines, but also for AI-powered discovery and emerging agentic web technologies. ✔ Next.js and React websites ✔ Fast static/edge architectures ✔ Technical SEO and semantic HTML ✔ Structured data / JSON-LD ✔ llms.txt and machine-readable content ✔ AI search / GEO optimization ✔ AI crawler and bot accessibility ✔ WebMCP-ready website architecture ✔ Machine-readable discovery and metadata ✔ DNS-based AI discovery concepts ✔ Agent-oriented website interfaces and APIs ✔ Performance-focused, mobile-first development ☁️ Hosting, DNS & Cloud Infrastructure ✔cPanel and Plesk management ✔Cloud and VPS hosting ✔AWS, DigitalOcean, Hetzner, Linode, Vultr, and more ✔Cloudflare configuration ✔DNS architecture and troubleshooting ✔SSL/TLS configuration ✔SPF, DKIM, and DMARC ✔Email and hosting configuration 🛠️ Troubleshooting & Emergency Repairs If your website or server is slow, broken, throwing errors, timing out, or completely offline, I can investigate the underlying problem rather than simply applying a temporary workaround. I troubleshoot issues including: ✔400/401/403/404 errors ✔500/502/503/504 errors ✔White Screen of Death ✔Database connection failures ✔PHP and application errors ✔Server timeouts ✔High CPU/RAM usage ✔Memory leaks ✔Broken Nginx/Apache/LiteSpeed configurations ✔DNS and connection problems ✔SSL/TLS issues ✔Slow database queries ✔WordPress crashes and plugin conflicts ✔Website and server migration problems ## My approach I prefer root-cause troubleshooting over guesswork. I inspect logs, server configuration, application behavior, database performance, DNS, caching, and infrastructure to identify what is actually causing the problem. Then I implement a practical fix and verify that the system is working correctly. ☎Whether you need a one-time technical fix, server migration, performance optimization, security recovery, website development, or ongoing maintenance, I can work directly on the technical side of your project. 🕑If you have a technical problem, tell me what is happening, what you have already tried, and what environment you are using. I will help you determine the right approach.

I am a Linux & Windows System Administrator and DevOps Engineer with over 8 years of experience, specializing in server management, automation, and cloud infrastructure. I help businesses maintain secure, high-performance, and scalable IT environments. My expertise includes: ✔ Linux & Windows Server Administration: Linux: Debian, CentOS, Ubuntu, RHEL – maintenance, troubleshooting, and optimization. Windows Server: Active Directory, Group Policy, IIS, Remote Desktop Services, DNS, DHCP, and PowerShell automation. ✔ DevOps & Automation: CI/CD pipelines, Ansible, Docker, Kubernetes, Terraform, Jenkins, and GitLab CI/CD. ✔ Cloud & Virtualization: AWS, Google Cloud, DigitalOcean, Azure, VMware, and KVM-based solutions. ✔ Web Servers & Performance Tuning: Apache, Nginx (with PHP-FPM/FastCGI), MySQL, Varnish, Memcached. ✔ Odoo ERP: Deployment, configuration, maintenance, and troubleshooting. ✔ Networking & Security: iptables, rsync, BIND, OpenVPN, Windows Firewall, network troubleshooting. ✔ Email Servers & Deliverability: Exim, Dovecot, Postfix, Microsoft Exchange, MailEnable – setup and troubleshooting. ✔ Backup & Migration: Secure and seamless server, database, and email migration. ✔ Control Panels: WHM/cPanel, Virtualmin, Plesk – installation and management. ✔ Monitoring & Logging: Zabbix, Munin, Nagios, ELK Stack (Elasticsearch, Logstash, Kibana), Windows Event Viewer. ✔ Lost Data Recovery: Helping recover critical data from both Linux & Windows environments. I am committed to providing secure, efficient, and scalable solutions for businesses. If you need assistance with server management, DevOps automation, Windows/Linux support, or performance optimization, feel free to reach out!

I'm a professional Senior Linux Systems Engineer with over 14 years of hands-on experience in managing, securing, and optimizing Linux-based servers and infrastructure. If you're a startup, entrepreneur, web agency, or enterprise looking for rock-solid server performance, automation, and security, you're in the right place. I work closely with clients to build stable, scalable, and secure Linux environments What I Can Help You With: Linux Server Setup & Management: Debian, Ubuntu, CentOS, AlmaLinux, RHEL etc Installation, Disk partitioning, LVM, RAID, system hardening Performance tuning and troubleshooting Web Server Deployment: Apache2, Nginx, PHP-FPM, SSL/TLS, Let's Encrypt Virtual Hosts, Rewrite Rules, Reverse Proxy configuration Mail Server Configuration: Postfix, Dovecot, Zimbra, Roundcube etc SMTP, IMAP, SPF, DKIM, DMARC setup Email deliverability and spam protection DNS & Control Panels: BIND, PowerDNS, DNS record management Webmin, ISPConfig, CyberPanel, Virtualmin, Vestacp etc setups Cloud & DevOps Integration: Infrastructure automation using Bash and Ansible Server provisioning, patching, user/group management, cron jobs Experience with various cloud platforms Cloud server setup and management VPN & Proxy Services: Squid, 3proxy, WireGuard, OpenVPN, Anyconnect, PPTP, Ipsec IP rotation, IPv4/IPv6 support, authentication Monitoring & Logging: Zabbix, Nagios, Grafana, Cacti ELK Stack: Elasticsearch, Logstash, Kibana Virtualization & Containers: KVM, Proxmox, VMware ESXi Docker containers, Docker Compose, orchestration Database & Backup: MySQL/MariaDB setup, optimization, replication, backup & restore Rsync, Rclone, cloud/offsite backup strategies Custom backup scripting and automation If you’re looking for a trusted Linux expert to support or transform your infrastructure, let’s connect and discuss how I can help!