Systems Administrator II
Microsoft 365 & Entra ID
Networks & Firewalls
Security-First MSP Engineer
Dalton Sweet
I keep businesses secure, connected, and running. I'm a systems administrator at a Tulsa managed services provider with a degree in cybersecurity, and my whole approach comes down to one idea: technology should work for people, not the other way around.
Security-minded. Operator at heart.
I'm Dalton. At The Computer Guy I look after a whole portfolio of client businesses: Microsoft 365 tenants, FortiGate and UniFi networks, endpoint fleets in Datto RMM, and whatever lands in the queue at 2 a.m.
I came up through cybersecurity, with an associate's from Tulsa Community College and a bachelor's from Northeastern State University, and ran a managed services practice before my current role. That mix shapes how I work: think like a defender, build like an operator, and explain it in plain English.
Off the clock I build websites, tinker with PC hardware, and read far too much about cosmology and physics.
What I do
The work I do every day, across a wide mix of client environments.
Security & Incident Response
When something looks wrong, I move fast. I've contained live social-engineering attacks before a payload ever ran, managed EDR across client fleets, and turned every incident into hardening.
Microsoft 365 & Identity
Daily administration across multiple client tenants: Entra ID, Exchange Online, OneDrive migrations, and the DNS behind it all. SPF, DKIM and DMARC done right, so mail actually lands.
Networks & Firewalls
FortiGate firewalls managed as a fleet, plus UniFi Dream Machines, switches and access points. VLAN design, secure remote access, Wi-Fi that holds up, and log forensics that can tell a bad config from a failing power supply.
Automation & Endpoints
Datto RMM components and PowerShell that deploy, patch and report silently, with custom status fields so nothing quietly falls through the cracks.
Governance & Compliance
Assessments against NIST CSF 2.0, PCI DSS v4.0.1 and regulated-industry controls. I turn frameworks into plain-language fixes a business can act on.
Web & Development
I build too: client websites on WordPress, web platforms on shared codebases, and small tools that cut busywork for technicians.
What I keep running
The stack behind my day job at a Tulsa MSP: client sites running FortiGate and UniFi gear, managed end to end through Datto, Microsoft 365, and a layer of automation and documentation. Every box here is something I configure, monitor, or fix.
How I work
Assess
Understand the environment before touching it: inventory, logs, and the people who actually use it.
Secure
Close the gaps that matter most first: identity, email, endpoints, and the network edge.
Automate
If I have to do it twice, I script it. RMM components, PowerShell, and alerting that reports back.
Document
Leave it better than I found it, with clear notes for the next tech and a plain-language summary for the client.
Featured case studies
Stopping a ClickFix attack before it executed
A fake "verify you are human" prompt, a user about to paste a malicious command, and a payload that never ran.
Read case studyCloud MigrationFive locations off on-prem file servers
A migration roadmap to move a multi-site practice from Sync Center and a server to Entra ID and OneDrive.
Read case studyEmail SecurityFixing bounced mail across client domains
Tracing 550 5.7.1 rejections and Yahoo bounces back to stale records and broken DKIM.
Read case studyIndustries I've worked in
Every client environment is different. These are the kinds of organizations I've kept running.
What clients say
Dalton has done a fantastic job with Tailwind Inspection IT issues. The peace of mind knowing our computers are protected is worth the money!
Dalton is very professional and has come to our rescue at all hours.
A huge shout out to Dalton for always being there in our time of need.
Platforms I work with
Latest from the blog
Notes on security, MSP life, and the tools of the trade.
Have a role, a project, or a fire to put out?
I'm open to conversations about sysadmin and security roles, plus select freelance work for small businesses.