SD Tech Solutions helps small and mid-size teams with practical infrastructure, security,
and automation — the kind of work that keeps environments stable without adding drama.
Infrastructure
On-prem, cloud, and hybrid: AD DS, Entra ID, Hyper-V, and M365 / SharePoint Online.
Design on-prem, fully cloud, or hybrid environments around AD DS and Entra ID.
Build and harden Linux (Ubuntu, Fedora, RHEL) and Windows Server 2016/2019 hosts.
Deploy Hyper-V VMs, containers, and Kubernetes-based workloads where it makes sense.
Stand up the full M365 stack: Exchange Online, Intune, Purview, and SharePoint Online from scratch.
Configure firewalls and enterprise switches that tie offices, cameras, and other networked systems together.
Design & Build
Security
Zero-trust VPN, IAM hardening, logging, backup & recovery with defense-in-depth.
Firewall policies tuned to real traffic, with VPN and MFA as the only way into internal resources.
Central logging for SSH, VPN, web, and server activity to spot suspicious behaviour early.
Least-privilege access, GPO hardening, and separation of duties for admins and service accounts.
Containerized and isolated services, with unnecessary daemons and features stripped out.
A “defense-in-depth” mindset: protect the crown jewels first, assume breach, and reduce blast radius.
Defense-in-Depth
Automation
PowerShell and Bash automation to keep onboarding, maintenance, and monitoring repeatable.
Bash and PowerShell scripts for backups, health checks, log rotation, and routine server maintenance.
Log analysis and alerting that emails when SSH, VPN, SMB, or app logs show unusual activity.
Onboarding and offboarding flows that map drives, set basics, and update Exchange / M365 automatically.
Bulk user and device changes in AD, Entra ID, Intune, and Exchange Online scripted instead of done by hand.
Small automation building blocks that can grow into full runbooks as the environment scales.
