Available for new projects
I’m Inder Kochar, a freelance systems & network engineer. I design, secure and support Windows and Linux infrastructure, Exchange and Postfix mail, and fast WordPress sites for businesses in India, Australia and beyond.
What I do
One engineer who understands the whole stack – so problems get solved at the root, not passed between vendors.
Windows Server and Ubuntu builds, Active Directory and Group Policy, DNS and DHCP, VMware and Hyper-V virtualisation, and backups you can actually restore from.
Network design, VLANs, firewalls and VPNs, IPv6 roll-outs, SSL and hardening – so the network is fast, segmented and safe by default.
Microsoft Exchange (2010–2019) and Linux mail with Postfix and Dovecot: deployments, migrations and deliverability with SPF, DKIM and DMARC.
Fast, secure, SEO-friendly websites on tuned LEMP servers, plus custom WordPress plugins for bookings, payroll, ticketing and more.
Online stores on WooCommerce, Shopify and Magento – secure checkout, reliable hosting and integrations that keep orders flowing.
Ongoing maintenance, monitoring and remote support with a proper ticket system and agreed response times – one engineer who knows your setup.
Free tools
Subnet calculators, config generators and mail-record checkers. They run in your browser, need no sign-up and store nothing.
Network, broadcast, usable host range, wildcard mask and binary view for any IPv4 address and CIDR prefix.
Open tool LinuxGenerate a correct Netplan file for a static IP or DHCP on Ubuntu 18.04 to 26.04 – with the right gateway syntax, file permissions and apply commands.
Open tool Email & DNSCheck a domain’s MX, SPF, DMARC and DKIM records in one go, with plain-English findings and fixes for common mistakes.
Open tool Email & DNSLook up A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV and PTR records for any domain or IP address.
Open tool WindowsPick the problem – corrupt system files, update failures, network trouble, disk errors – and get the right SFC, DISM, chkdsk or netsh sequence in the right order.
Open tool LinuxProduction-ready Nginx server blocks for WordPress/PHP-FPM, static sites and reverse proxies – HTTPS, HTTP/2, www redirect and security headers included.
Open toolSelected work
Restaurants, schools, shops and consultants in India and Australia – designed, built and hosted with business email that reaches the inbox.
Restaurant · Corrimal, NSW, Australia
A family Indian restaurant serving the Illawarra since 1991 – with table bookings, takeaway ordering and gift cards built into the site.
Fine-art photography · India
A gallery and print shop for a photographer with 35+ years of work – pick size, paper and frame and see the price update instantly.
School (CBSE) · India
The website of a CBSE-affiliated school founded in 1976 – notices, admissions, fees, mandatory disclosure and logins for students and staff.
Overseas education consultants · India
Study-visa counselling since 1993 – country guides, appointment booking and an online assessment form that brings in qualified enquiries.
Financial services · India
A customer-service centre since 2017 – banking, loans, Aadhaar, FASTag, insurance and bill payments, with a loan enquiry form and useful tools.
Multi-vendor marketplace · India
India’s multi-vendor tech marketplace – laptops, components and accessories from verified sellers, and a sign-up path for new vendors.
Healthcare · live demo · Demo set in Sri Ganganagar, Rajasthan
A complete hospital website and patient system, shown as a live demo – department pages, doctor rosters, OPD appointment requests and secure lab-report lookup.
Hotel & restaurant booking platform · India & Australia
A booking platform for hand-picked hotels and restaurants – verified brand pages, licences on show, clear terms and direct payment, in English and Hindi. Also at deohri.com.
Ready meals · Australia
Chef-cooked Indian meals to heat at home – products, where to buy them and an order form, from the team behind Manjit’s.
Home appliances retail & wholesale · India
Home electrical appliances at sensible prices – a showroom site with product categories and a sign-up and login area for dealers.
Architecture & civil engineering · Suratgarh, Rajasthan
An architecture and civil engineering firm – featured projects, free-consultation booking and handy area-calculation tools for clients.
Granite, tiles & bathware · Sri Ganganagar, Rajasthan
Granite, tiles and bathware from Sumitra Granite and Daulat Ram & Company – gallery, catalogues and contact details in English and Hindi.
Mining & infrastructure · India
Mining, crushing, transportation and contracting – a clear company site that presents four service lines and turns visitors into enquiries.
Jobs portal · India
A job portal for candidates and employers – structured profiles, verified applications, secure messaging and live job search.
IT services · India & Australia
The group site for Alfa Intelli Net (Australia) and Alfa Intelli Tech (India) – application development, IoT, UI/UX, networks, web and email.
IT consulting · Australia
IT consulting for networks, Windows and Linux servers and email – with a support-ticket system, knowledge base and network tools.
Education · Australia
A clean, simple web presence for an Australian education provider – quick to edit, with business email on a server I manage.
Family history · Worldwide
An online family tree that connects relatives worldwide – member profiles, an add-member form and family events.
Personal website & blog · India
A personal website and blog for Hukam Singh Tanwar “Zameer” – आवाज़-ए-ज़मीर – with writing in Hindi.
How I work
A review of your current setup – risks, bottlenecks and quick wins – in plain language.
A documented plan with options, costs and a timeline you approve before any work starts.
Careful implementation in agreed change windows, with testing and a rollback plan at every step.
Hand-over documentation, monitoring and ongoing help through tickets or a support plan.
Why clients stay
You are what you build. I design systems that are secure, efficient and scalable – and I document them so you are never locked in.
More about me →Hardware, operating systems, network, mail and web – one point of contact who sees how it all connects.
Least privilege, patching, tested backups, SPF/DKIM/DMARC and hardened servers are part of every job, not extras.
Clear hand-over notes, passwords in your vault and plain-English reports – your systems stay yours.
Projects across India and Australia, working remotely across time zones or on-site when it matters.
Guides & tips
Cyber fraud cases keep rising. The most common scams, the habits that stop most of them, and exactly what to do –…
Repair corrupted system files with Windows’ own tools – DISM first, then SFC – before reaching for third-party “optimisers”.
Four free IPv6 tools in one place – address converter, validator, subnet calculator and a one-page cheat sheet.
Tell me what’s happening – I’ll reply within one business day with next steps, whether that’s a quick fix or a proper plan.
