Networks tend to grow one device, one office and one exception at a time. Years later, businesses can end up with flat networks, old firewall rules and equipment nobody remembers approving. Our job is to bring that environment back under control.
The business network connects users, computers, servers, cloud applications, printers, phones, wireless devices and specialized equipment.
Network security is the process of controlling that connectivity so approved users and systems can communicate while reducing unnecessary exposure.
Business Firewalls
A properly selected and configured firewall can provide:
- Traffic filtering
- Network segmentation
- VPN or secure remote connectivity
- Intrusion prevention features
- Application controls
- Logging
- Threat filtering features
- Policy enforcement
The effectiveness of a firewall depends on design, configuration, updates and monitoring.
Network Segmentation
Not every device should necessarily have unrestricted access to every other device.
Segmentation can separate:
- Employee computers
- Servers
- Guest Wi-Fi
- Voice systems
- Cameras
- IoT devices
- Industrial or operational technology
- Management interfaces
- Vendor-access networks
Segmentation can reduce the ability of an attacker to move through an environment after one device is compromised.
Secure Wireless
Business wireless should be designed for both coverage and security.
Organizations should consider:
- Appropriate encryption
- Controlled authentication
- Guest network separation
- Access point management
- Firmware updates
- Coverage planning
- Rogue device detection capabilities where appropriate
Remote Access
Remote access should be limited to authorized users and protected with appropriate authentication and security controls.
Directly exposing administrative services to the internet can create significant risk.
Network Monitoring
Monitoring can help detect:
- Device failures
- Connectivity problems
- Unexpected traffic
- Security events
- Capacity issues
- Unauthorized devices
Network Documentation
Useful network documentation can include diagrams, IP addressing, device inventory, internet connections, wireless information, firewall rules, VPN configuration and administrative procedures.
Common questions
Does a firewall stop every cyberattack?
No. A firewall is one security layer. Attacks can also arrive through email, stolen credentials, cloud services, malicious applications, endpoints and third parties.
What is network segmentation?
Segmentation divides a network into controlled sections. Rules determine which systems can communicate across those sections.
Should guest Wi-Fi be separate from business systems?
In most business environments, guest wireless should be isolated from internal business resources unless there is a specific reason not to do so.
Network Security From Huff Data Systems
Huff Data Systems provides network and cybersecurity services for supported business environments.
Victoria: 361-570-7240 Houston: 713-493-2051