Servers & infrastructure
Linux and Windows Server administration, Active Directory, web hosting, backups, performance troubleshooting and security hardening.
IT INFRASTRUCTURE & NETWORK ENGINEERING
Keeping systems
connected.
Making IT work.
I'm Zadidul Banna, an IT professional based in Dhaka. I bring hands-on experience to the servers, networks and tools that people rely on every day.
14+ years of IT experienceDhaka, Bangladesh
LINUX & WINDOWS SERVER✳NETWORK OPERATIONS✳ENTERPRISE IT SUPPORT✳PRACTICAL WEB TOOLS
01 / ABOUT ME
Practical experience.
Dependable solutions.
From the server room to the support desk, I focus on keeping technology useful, secure and dependable.
My background spans Linux and Windows environments, enterprise networks, mail services and web hosting. I work through real operational challenges: diagnosing faults, maintaining infrastructure, supporting users and improving the tools behind everyday work.
I am interested in full-time IT infrastructure, networking and support opportunities across Bangladesh.
Connect on LinkedIn ↗02 / WHAT I WORK WITH
A connected set of skills.
Hands-on across infrastructure,
operations and end-user support.
Networks & connectivity
LAN and WAN operations, routing, switching, VLAN configuration and hands-on network fault diagnosis.
Workplace technology
Enterprise IT support, Microsoft 365 mail operations, hardware maintenance and vendor coordination.
Connected systems
Mail services, Asterisk and IP PBX, CCTV, IP cameras, access control and attendance systems.
03 / SELECTED WORK
Built around real needs.
Web projects and infrastructure work
from my ongoing practice.
01 / PUBLIC-INTEREST PLATFORM
Bolatkar.xyz
A structured platform for reporting and understanding sexual-violence incidents in Bangladesh, with privacy-conscious publishing and a review process.
- Structured reports, location filters and category hierarchies
- Reviewed news sources and multiple links per incident
- Aggregate statistics and an admin review workflow
02 / OPERATIONS TOOL
IT Asset Management
A central workspace for organizing IT inventory, category hierarchies, asset assignments and maintenance-related information.
Open application ↗Authorized access required.03 / INFRASTRUCTURE
Hosting & mail operations
Ongoing administration and troubleshooting of web hosting and email services, covering performance, configuration, security and service reliability.
Discuss infrastructure work →MORE FROM MY PRACTICE
Beyond the featured projects.
Infrastructure work, technical investigations
and architecture explored in practice.
Virtualization
Proxmox infrastructure
Hands-on work with virtual machines, container access, resource pools and persistent storage mounts. Also explored delegated, VPS-style access for container users.
Administration & explorationNetworking
Dual-WAN & workplace Wi-Fi
Worked through a MikroTik network using two internet connections, user-group routing and PCQ bandwidth management. Investigated call quality and wireless behavior across UniFi and Omada access points.
Operations & troubleshootingApplication delivery
Reverse proxy & deployment
Worked with Nginx Proxy Manager and Cloudflare to publish hosted services, including a Dokploy environment. Investigated TLS behavior, host routing and Proxmox console connections through a reverse proxy.
Configuration & troubleshootingVirtualization
Hyper-V Linux environment
Worked on external virtual-switch configuration for LAN-connected virtual machines, boot-media setup and Rocky Linux installation troubleshooting.
Lab & troubleshootingWeb security
WordPress & PHP diagnostics
Investigated suspicious PHP code and WordPress theme files, reviewed malware indicators and explored local scanning and integrity-check workflows.
Security investigationHosting architecture
DNS & resilient hosting design
Explored custom nameservers for a hosting environment and a two-server CWP architecture, covering synchronization, load distribution and failover requirements.
Architecture planningMail operations
Email delivery & spoofing analysis
Reviewed delivery failures and suspected spoofing, including mail headers, SMTP responses and reverse-DNS issues, alongside ongoing hosting and mail administration.
Diagnostics & operationsDirectory services
Active Directory Server
Windows Server and Active Directory administration and maintenance, supporting directory services in an enterprise IT environment.
Administration & maintenanceBusiness email
Zoho Mail
Work with Zoho Mail as part of business email and communication systems.
Email platform experienceCloud communication
IceWarp Cloud
Work with IceWarp Cloud as part of cloud-based business email and communication services.
Email platform experienceSurveillance systems
CCTV & IP cameras
CCTV and IP camera setup and maintenance, alongside hands-on support for connected security systems.
Setup & supportEach card identifies the scope of the work: operational experience, troubleshooting, lab exploration or architecture planning.
04 / EXPERIENCE
Over a decade.
Always hands-on.
Experience across enterprise IT, network administration and hardware support.
Education & training ↓Senior Executive
Alliance Holdings Limited
Hardware and network troubleshooting, Microsoft 365 mail operations, Active Directory and MikroTik administration. Access-control systems, attendance reporting, IT policy implementation and warranty coordination.
Junior System Administrator
Dhaka Information Technology
LAN/WAN administration, network connectivity and security troubleshooting, Cisco VLAN configuration, infrastructure repairs and coordination with users and suppliers.
Hardware Engineer
Crescent Trade International
Hardware engineering role, September 2014 to February 2015.
IT Officer
Tisha Marketing Company
Computer and printer maintenance, network diagnosis, communication protocols and local-network application support.
Junior Engineer
Advance Technology
Client network troubleshooting, computer and printer support, peripheral repairs and coordination with users and vendors.
IT Officer
MEDS IT Development Ltd.
Computer maintenance, network troubleshooting, peripheral support and Cisco/HP switch and VLAN configuration.
05 / LEARNING & FOUNDATIONS
Education and training.
Diploma in Computer Engineering
Dishari Institute of Science and Engineering
2011 · Four-year diploma · CGPA 3.47 / 4Secondary School Certificate
Benipur High School · Business Studies
2007 · GPA 3.63 / 5Red Hat Linux Administration
RHCSA training · AT Computer Solution Limited
2018 · Three monthsCisco Routing & Switching
CCNA training · Ciscovalley Network Academy
2014 · Three monthsHOBBIES & INTERESTS
Cycling, fitness & marathon running.
LANGUAGES
Bangla · English
06 / LET'S CONNECT
Have a system to improve?
Let's start a conversation.
me@zadid.xyz ↗Based in Dhaka, Bangladesh.
Open to conversations about IT roles and practical projects.