// systems engineer, designer, professional breaker of things
I break things so your servers don’t. I’m Rakib Raihan, aka RooSho. Since 2001 I’ve built and rescued servers, storage, backups, phone systems and networks. Whatever finally works ends up here as a free tool or a step-by-step guide.
$ traceroute roosho
jack of all IT trades✦servers✦storage✦backups✦voip✦networks✦cloud✦design✦art✦jack of all IT trades✦servers✦storage✦backups✦voip✦networks✦cloud✦design✦art✦
// 01 · the stack
Most teams hire five specialists. I ended up being all of them, one outage at a time. Here is the kit I carry around.
Dell PowerEdge, MX7000 chassis, iDRAC, midrange storage. Racked, cabled, rescued.
Veeam, NetBackup, Kubernetes backups. Because “it was fine yesterday” is not a strategy.
Certified 3CX partner. Mitel, SIP trunks, and the occasional ghost-call exorcism.
Cisco Nexus, MikroTik, WireGuard, firewalls. Packets go where I tell them.
VMware vSphere and ESXi, Red Hat, AWS, Oracle Cloud, Microsoft 365.
Logos, websites, UI, and digital sketches that ended up as NFTs.
// 02 · the lab
Small utilities I built for my own day job, cleaned up so you can use them too. They run in your browser, so your data stays with you.
CIDR, VLSM and IPv6 splits on one screen, with copy-ready tables.
Strong, readable passwords and passphrases. Generated locally, never sent anywhere.
Check SPF, DKIM and DMARC for a domain and get plain-English fixes.
Usable capacity, fault tolerance and rebuild risk for every common RAID level.
Turn plain text into 140+ Unicode styles for bios, posts and usernames.
Paste a cron expression, read it in English, and see the next run times.
// 03 · the cookbook
Step-by-step fixes, written right after the fix worked.
// 04 · the rack
A few builds I designed and delivered. They are still up, which is the whole point.
// 05 · uptime reports
“
He had all the expertise required to understand my requirements, make suggestions and implement effectively.
Jonathan Movitz
Co Founder & General Manager (Community Engagement & Relationship Building)
One Love Community Care (OLCC)
“
He showed us many draft layouts, rebuilt the ideas based on our input, and combined our ideas with the professionalism of Bangaliana to create exactly what we were looking for.
Mamun-Or-Rashid
Managing Director
Riverine Stitchers Ltd.
“
The site looks amazing and thank you for going over and above to make sure we knew what was going on all the way through.
Md. Abdur Rahim
Chief Engineer
University of Rajshahi
“
Their solution was brilliant, completely eliminating the ghost calls. Communication throughout? Fantastic – clear, professional, and always prompt.
Peter Montanez
Commercial Insurance Consultant
NY Insurance Consultant
// 06 · off the clock
Digital sketches, a few of them minted as NFTs.
// 07 · say hello
Got a broken server, a 3CX headache or a design itch? Send a packet. I usually reply within a day (GMT+6).
$ ping -c 4 roosho
