Palo Alto Networks firewalls
Design, deployment and hardening of next-generation firewalls on PAN-OS, managed through Panorama or Strata Cloud Manager.
Firewall services →
Network security & IT consulting
Firewalls, VPN and networks, built to hold.
GSTS is an independent IT consultancy specializing in network security. We design, migrate and harden firewalls and remote access, with deep hands-on Palo Alto Networks experience, and look after the Microsoft 365 and infrastructure around them.
What we focus on
Security at the network edge
Most of our work sits where your network meets the outside world. That is where a well-run firewall and a clean remote-access setup make the biggest difference.
Firewall migrations
Planned, low-risk moves from FortiGate, Cisco, Check Point, SonicWall and others to Palo Alto, with policy cleanup along the way.
Migration services →VPN & secure remote access
GlobalProtect, Prisma Access and site-to-site IPsec that are reliable for users and tightly controlled for you.
Remote access services →
Also covered
The rest of your IT, handled properly
Security does not stop at the firewall. We also cover the services and systems that sit behind it.
Microsoft 365
Tenant setup, Exchange Online, Entra ID, Intune and security hardening for small and mid-sized organizations.
Microsoft 365 services →Security assessments
Configuration reviews, traffic analysis and recurring advisory reports that tell you what to fix first.
Assessment services →Network & infrastructure
Switching, wireless, servers and Azure, including domain controller and file server replacement.
Infrastructure services →
Palo Alto Networks
Deep, hands-on Palo Alto experience
Palo Alto Networks is where we spend most of our time. That means we know the platform beyond the basics: how App-ID and User-ID behave in real networks, how to structure Panorama device groups and templates so they stay manageable, and where migrations tend to go wrong.
Whether you are deploying your first pair of firewalls, consolidating a sprawling rulebase, or moving users to Prisma Access, you work directly with the engineer doing the work.
Platforms
- PAN-OS next-generation firewalls, hardware and VM-Series
- Panorama and Strata Cloud Manager
- GlobalProtect remote access
- Prisma Access (SASE)
Typical work
- New deployments and high-availability pairs
- Migrations from other firewall vendors
- Rulebase cleanup and best-practice hardening
- PAN-OS upgrades and health checks
How we work
A clear process, no surprises
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Assess
We review your current setup and agree on goals, scope and constraints before anything changes.
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Design
You get a written design and change plan that you can review, question and approve.
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Implement
Changes go in during agreed windows, with tested rollback steps for every stage.
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Hand over
Clear documentation and a walkthrough, so your team understands what was built and why.
Planning a firewall project?
Tell us what you have today and where you want to be. We will reply with next steps and an honest view of the effort involved.