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Cyber Security

Managed Firewalls

Your firewall is your front door — Nostra makes sure it's locked. As SonicWall Partner of the Year 2022–2025, we supply, configure, monitor and manage firewalls that keep threats out without slowing your business down.

What You Get

Managed Firewalls with Nostra

  • SonicWall Partner of the Year 2022–2025
  • Firewall supply, configuration and hardening
  • 24/7 monitoring and firmware management
  • Content filtering and intrusion prevention
  • Site-to-site and remote access VPN
  • Regular rule reviews and compliance reporting
Why Nostra

Trusted by 1,000+ organisations

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In-house Irish team

Support from Dublin, Cork, Galway and Belfast — never outsourced.

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4.9/5 customer satisfaction

And 98% client retention that speaks for itself.

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ISO 27001:2022 certified

Independently audited service delivery, every year since 2021.

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SLA-backed service

Real-time dashboards and measurable commitments.

FAQs

Managed Firewalls — frequently asked questions

How often should firewall rules be reviewed?

At least annually, and after any major network change — stale rules are one of the most common security holes we find in audits.

Can you manage firewalls we already own?

Yes — we take over existing firewalls with a configuration review and hardening pass, or recommend replacement if the hardware is end-of-life.

Do you support remote workers through the firewall?

Yes — secure VPN and zero-trust remote access are part of every firewall deployment we do.

Related Services

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Managed Cybersecurity

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Security Operations Centre (SOC)

SOC-as-a-Service from Nostra — 24/7 security analysts monitoring, triaging and responding to threats across your environment.

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Managed SIEM

Managed SIEM from Nostra — centralised security logging, correlation and alerting, tuned and monitored by experts. Compliance-ready reporting.

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Written by the Nostra team  |  Reviewed October 2026

Ready to talk about managed firewalls?

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