portfolio / v4.7 linux sysadmin khulna, bd · utc+6 open for contracts

Servers that don't sleep & sites that stay up.

Hi, I'm Md Masum Parves Rentu — a Linux system administrator who keeps infrastructure quiet, clean, and fast. VPS provisioning, cloud ops, malware cleanup, migrations — the things you don't want to think about, but need done right.

~/whoami.sh
$ whoami
masum-parves-rentu
$ uptime --role
sysadmin // ready
# looking for long-term collabs
$
systems operational
response time: < 24h
timezone: asia/dhaka
availability: open
01 / about

Not just uptime — outcomes.

This is Masum. I'm a Linux system administrator, and I build the quiet parts of the internet — the ones that just work.

Throughout my student life I was deep in extracurriculars: VPS setup, Laravel on Ubuntu, Nginx, Apache, the whole stack. That curiosity never stopped. Today I work across the layer most people don't see, and I like it that way.

I've learned to work in a team — as an effective leader or a devoted member. As an extrovert, I communicate with people easily and adapt quickly to unfamiliar or fast-paced environments.

I'm an expert in malware removal, website migration, domain migration, and WordPress setup. I've learned AWS, GCP, and the most common cloud architectures — and I'm still learning every day.

I'm self-committed to delivering your project on time and making you smile. Looking for a long-term working relationship.

— Md Masum Parves Rentu Khulna, Bangladesh
focus
Linux/cloud
Ubuntu · Debian · CentOS
delivery
On-time
every project, no excuses
cloud
AWS+GCP
production-grade deploys
model
Long-term
collaborations over gigs
02 / services

What I handle for you.

01

Information Security

Malware removal, hardening, firewall rules, SSL, and ongoing monitoring — so your site doesn't end up on a blocklist.

02

Cloud Management

AWS and GCP deployments, EC2, S3, load balancing, cost optimization, and clean architecture that scales.

03

WordPress Design & Ops

Setup, migration, malware cleanup, performance tuning, and maintenance for WP stacks of every shape.

04

Backup & Recovery

Automated backups, disaster recovery plans, and restore drills — so when something breaks, it's already solved.

05

IT Consulting

Architecture reviews, migration planning, and honest advice on what you actually need — not what sells.

06

Computer Networking

DNS, routing, VPNs, reverse proxies, domain migration — the plumbing that decides whether your app feels fast or broken.

07

Database Development

MySQL, PostgreSQL, MariaDB — schema design, query tuning, backups, replication. Data that stays consistent under load.

08

VPS & Server Setup

Provisioning, Nginx / Apache configs, Laravel deploys, SSL, user hardening — servers ready for production on day one.

09

Site & Domain Migration

Zero-downtime moves between hosts, domains, and stacks. DNS planning, redirects, email continuity — all of it.

03 / stack

The tools — and how deep.

core proficiency

Linux Server Admin 95%
VPS & Nginx / Apache 92%
WordPress Ops 95%
Malware Removal 93%
Website Migration 94%
AWS / GCP 80%
Databases (MySQL) 82%

toolbox

Ubuntu Debian CentOS Nginx Apache Laravel PHP-FPM WordPress WooCommerce cPanel Plesk AWS EC2 S3 Route 53 GCP DigitalOcean Linode Cloudflare Let's Encrypt MySQL MariaDB PostgreSQL Redis Git Bash SSH Cron UFW / iptables Fail2ban rsync ImunifyAV Wordfence DNS VPN

also fluent in

team leadership client communication fast-paced work on-time delivery long-term collabs
04 / process

From broken to boring.

→ 01

Diagnose

Server audit, log review, DNS check, malware scan. I find out exactly what's wrong — or what's about to be — before touching anything.

→ 02

Plan

A clear, written plan with scope, timeline, rollback strategy, and what you need to approve. No surprises, no jargon dumps.

→ 03

Execute

Quiet, careful work. Staged changes, tested configs, zero-downtime migrations when possible. Backups before every risky step.

→ 04

Harden

SSL, firewall rules, automated backups, monitoring, fail2ban. I leave the server in a better state than I found it — always.

→ 05

Handoff

Documentation, credentials handoff, and a short walkthrough. You should be able to run it yourself — or call me when you'd rather not.

ssh masum@available

Got a server that's misbehaving?
Let's fix it.

Malware cleanup, migration, VPS setup, cloud deployment — or just a sanity check on your infra. Send me a message and I'll respond within a day.