Techieism Project Spotlight
🏆 Our WorkNetfox Licence Limitations — Replaced with OPNsense, Samba AD, RADIUS & OpenVPN. ₹0 per Year.
The client's Netfox commercial firewall had reached its licence limits — restricting the number of users, connections, and features they could use without paying for an expensive upgrade. The vendor's renewal quote was significant and the limitations were actively impacting their day-to-day operations. Techieism was brought in to solve the constraint without locking the client into another commercial licence cycle.
We replaced the Netfox firewall with OPNsense — the enterprise-grade open-source firewall — configured with stateful packet inspection, intrusion detection, web filtering, and traffic shaping at no licence cost. On top of the firewall, we built a complete authentication and access stack: Samba Active Directory for domain-based user management, RADIUS for network access control (authenticated wired and wireless access), and OpenVPN for secure remote worker connectivity — all integrated and managed from a single infrastructure. The result: the client now has a more capable, fully open-source security stack with no annual licence renewals, no vendor lock-in, and more features than the commercial product it replaced.
Past Projects
📚 PortfolioBusiness Email Compromise, Contained. Attacker Evicted from M365 — Full Forensics.
A client received email from a known contact whose M365 account was compromised via AiTM phishing. Techieism traced the attack through the Unified Audit Log, revoked sessions, removed inbox rules, reset credentials with MFA, and hardened the tenant with Conditional Access policies. Attacker fully evicted, zero data loss.
Enquire About This Solution →~2TB of SharePoint Data. Two Companies. Zero Data Loss. Zero Paid Migration Tools.
A corporate restructuring required migrating nearly 2TB of SharePoint data across Microsoft 365 tenants. Techieism engineered the entire migration using PowerShell scripting alone — no third-party tool licences, no data loss, full permission mapping, and incremental sync. Every document arrived intact.
Enquire About This Solution →One Server. Four VMs. One Windows Licence Instead of Four. No RAID Controller.
A CA firm needed file server, Active Directory, Tally ERP, and Winman — the conventional approach meant four Windows Server licences, CAL costs, and a hardware RAID controller. Techieism built the entire setup on one machine using Proxmox VE, with Linux VMs for AD and file server (free) and one Windows Server VM for both Tally and Winman. ZFS RAID replaced the hardware controller entirely.
Enquire About This Solution →Four Offices. One Domain. Zero Extra Windows Server Licences.
A multi-office company needed centralised user authentication across all locations. We deployed 4 Samba Active Directory Domain Controllers — one per office — with automatic cross-site replication, single sign-on for all staff, and Group Policy enforcement. Any employee logs in with one account at any office. Built entirely on Linux: no Windows Server licence cost.
Enquire About This Solution →All Offices Connected — No MPLS. No VPN Servers. No Costly Routers.
A multi-office organisation was spending heavily on MPLS leased lines and VPN hardware. We replaced the entire setup with OPNsense open-source firewalls at each site, a self-hosted Headscale mesh coordination server, and WireGuard encrypted tunnels between all locations. Every office connects securely to every other — servers, printers, internal apps — as if on one LAN. Remote staff connect to the same mesh. New offices added in minutes.
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