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Network Security · Dallas

Network Security in Dallas, TX

A Dallas office network has more ways in than most owners realize: the firewall's VPN portal, guest Wi-Fi, a camera system, a second circuit nobody documented. NetSys designs, ships and manages the firewalls, switches and Wi-Fi that close those doors, and monitors them from Brooklyn without ever needing to be in the building.

All IT services in Dallas, TX

The short answer

NetSys provides network security and managed network services in Dallas: Cisco Meraki or Fortinet firewalls on current firmware, hardened VPN and remote access with multifactor authentication, segmented networks for staff, guests, cameras and payment devices, enterprise Wi-Fi with individual sign-ins, dual-carrier or cellular failover, and Rapid7 scanning. Equipment ships preconfigured and is managed remotely from our Brooklyn office, and engineers never come on site in Dallas. Monitoring and emergency service run 24/7; the help desk is staffed seven days a week from 4 a.m. to 11 p.m. Eastern time, which reads an hour earlier on Dallas clocks.

Service information by The NetSys Group. Our editorial standards.

How network security is delivered in Dallas

We design the network on paper first, from your floor plan, carrier details and a list of every device that needs to connect. Firewalls, switches and access points are then claimed in their cloud dashboards and configured from Brooklyn before they leave the supplier, using profiles stored in IT Glue. Your cabling contractor mounts and connects them, the devices check in, and our engineers finish the setup and test each network segment. Our engineers are never on site in Dallas. After go-live, the firewall and switches are monitored continuously, firmware is updated in agreed maintenance windows, configuration changes are logged, and if a unit fails, a replacement is loaded with your saved configuration and shipped. Rapid7 scans check from outside and inside for anything exposed. Monitoring runs 24/7 from Brooklyn, and so does emergency service. Our staffed help-desk hours are 4 a.m. to 11 p.m. Eastern time (3 a.m. to 10 p.m. Central), seven days a week. The proposal states severe-incident escalation, authorized remediation and any other after-hours work.

Firewalls, VPNs and the flaws ransomware groups use

The firewall is the most attacked device most companies own, because it faces the internet. CISA's advisory on the Play ransomware group, the group behind the October 2023 attack on Dallas County, lists two FortiOS vulnerabilities, CVE-2018-13379 and CVE-2020-12812, among the ways it gets in, years after patches were released. Managed firewall service exists to close that gap. Firmware stays on a supported release and is patched quickly when the vendor rates a flaw critical. The SSL VPN portal is replaced with remote access that requires multifactor authentication, or removed entirely when staff only need Microsoft 365. Admin pages are not reachable from the internet, unused rules are deleted, and the configuration is checked against the vendor's hardening guidance at least once a year.

Segmentation for medical, retail and warehouse networks

A flat network lets one infected laptop reach everything. We split it into zones with firewall rules between them: staff computers, servers, guest Wi-Fi, printers, security cameras and door controllers, and any card-payment devices, which PCI DSS encourages you to isolate so fewer systems fall in scope. In a clinic, imaging and lab devices that cannot run endpoint protection get their own segment and may talk only to the systems they need. In a distribution center in southern Dallas County, handheld scanners, conveyors and label printers sit apart from office PCs, so an infection in accounting does not stop shipping. Each zone has a documented purpose and owner in IT Glue, and new devices are assigned to the right zone before anyone plugs them in.

Wi-Fi in shared towers and office parks

Uptown and downtown towers pack dozens of tenants' Wi-Fi networks onto a few floors, so channel planning matters as much as passwords. We plan access-point placement from the floor plan, use WPA3 or WPA2-Enterprise for staff so every employee authenticates with personal credentials instead of a shared key, and put visitors on an isolated guest network with its own bandwidth limit. Rogue access points and unknown devices show up in the Meraki or Fortinet dashboard. In suburban office parks in Plano or Richardson, the issue is often the opposite: one aging access point trying to cover too much space. Either way, the goal is simple to state: staff should be able to walk from the conference room to their desk without dropping a Teams call.

Circuits, failover and the Infomart

Network security includes staying connected. Dallas has the Infomart, the carrier hotel at 1950 North Stemmons Freeway where dozens of networks exchange traffic, but that does not help a suite with one circuit. We check which carriers actually serve your address, among them AT&T Business Fiber, Spectrum Business and Frontier, now part of Verizon, and order two diverse circuits where the building allows it. The firewall balances traffic and fails over automatically, and a cellular connection covers the case where both wired circuits fail. For firms with several offices, SD-WAN on the same firewalls links sites securely and steers voice and video over the healthiest path. Every circuit, account number and support contact is documented, so an outage is reported to the right carrier in minutes.

What is included

Network Security in Dallas: what NetSys delivers

Firewall and edge

Managed Cisco Meraki MX or Fortinet FortiGate firewall with rules reviewed and firmware kept current
Exposed ports and vendor port-forwards closed and replaced with authenticated, logged access

Segmentation and Wi-Fi

Segments for servers, staff, finance, printers, cameras, building systems and guests on Meraki MS switching
Secure Wi-Fi with per-user authentication through Entra ID instead of a shared password

Access and monitoring

VPN or zero-trust remote access that checks the Intune-managed device before granting entry
Encrypted site-to-site links between offices, warehouses and clinics

Published case study

Multi-site medical practice: seven locations on an encrypted VPN mesh

A rapidly expanding medical practice had seven locations bolted together one network at a time, undersized servers on an end-of-life operating system and recovery objectives that existed on paper only. NetSys ran a gap analysis against the HIPAA Security Rule, refreshed the platform on Windows Server with Hyper-V, put business-grade firewalls at all seven sites joined in a site-to-site VPN mesh with per-role access controls, and added encrypted off-site backups with documented recovery objectives and scheduled restore tests. NetSys manages the servers and workstations on an ongoing basis.

Read the full case study (7 locations · 200+ staff)

From our client work

Network security work for other clients

Insurance
Insurance brokerage relocating its headquarters
Deployment of 40 workstations, installation of 60 network drops, firewall setup, and office Wi-Fi configuration.
Office Relocation IT Services IT for Insurance Agencies and Brokers

Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Dallas client.

What network security costs in Dallas

Network security is priced as a monthly managed service per site, with hardware either included on the agreement or purchased outright. What moves the number: the number of sites and circuits, whether the site needs SD-WAN across several carriers, the count of switches and access points under management, and whether 24/7 monitoring is standalone or part of a wider managed agreement. Failover circuits are billed by the carrier at cost. We quote from a site survey, and terms run month to month. Our managed IT pricing page explains how monthly fees are built.

How the monthly fee is built

Who this fits, and who it does not

Best fit: businesses on one or two floors that inherited their network, practices that need patient or client systems isolated from waiting-room Wi-Fi, companies with an office and a warehouse or second site to connect, and any business with staff at home who need a safe way back into office systems.

Network Security in Dallas: FAQs

How does network security work for Dallas organizations?

It is designed and managed remotely. We plan the network from your floor plan and device list, ship firewalls, switches and access points preconfigured, and finish setup through their cloud consoles once your cabling contractor connects them. After that, our engineers monitor the equipment, apply firmware updates in maintenance windows, review rules and respond to alerts from Brooklyn. Nobody from NetSys visits the office. If a device fails, a replacement ships with your saved configuration already on it.

How much does network security cost in Dallas?

There are two parts. Equipment, licenses and the initial design and setup are quoted as a project after scoping, and depend on the number of sites, users, access points and circuits. Ongoing managed firewall and network service is a monthly fee, often included in a managed IT agreement priced per user from an assessment. Requirements such as PCI DSS segmentation, several offices on SD-WAN or after-hours change windows add to the scope. NetSys does not publish prices.

How often should a Dallas office review or replace its firewall?

Review the rules and settings at least once a year, and whenever you add a site, a remote-access method or a new application. Apply firmware updates on a regular cycle, and immediately when the vendor or CISA flags a critical flaw. Replace the firewall when the vendor stops issuing security updates for the model, or when it can no longer handle your traffic with inspection turned on. A firewall that no longer receives security updates is a liability, not a safeguard.

What is a managed firewall service?

It means we own the firewall's security, not just its installation. That covers firmware updates, rule reviews, VPN and remote-access configuration, intrusion prevention and web filtering settings, log review, and alerts when the device goes offline or sees unusual traffic. Changes go through a request and are documented, so you know who changed what and why. For multi-site companies, managed network services extend the same care to switches, Wi-Fi and the SD-WAN links between offices.

Do Texas or industry rules require network security controls?

Several do. The Texas Data Privacy and Security Act requires covered companies to keep reasonable data security practices, and section 521.052 of the Business and Commerce Code calls for reasonable procedures that keep sensitive personal information from unlawful use or disclosure. Medical practices must meet the HIPAA Security Rule's access control, audit control and transmission security standards. Retailers, restaurants and hotels that take cards follow PCI DSS, whose first requirement is to install and maintain network security controls. This is general information, not legal advice.

Firewall, Wi-Fi and monitoring

Find out what your network lets through.

Discuss your firewall, segmentation, remote access and monitoring needs with an engineer. Any technical review begins with an agreed scope and access requirements.

Explore Network Security Scope 845-203-3914