What is a Firewall?

A firewall is a security device that monitors incoming and outgoing network traffic and denies or permits passage based on defined security rules. It acts as a barrier between a private network and a public network like the internet.  

• Hardware Firewalls: Physical devices that sit on the network perimeter.  
• Software Firewalls: Software-based firewalls that run on servers or individual workstations.  

  Cloud-Based Firewalls: Firewalls delivered as a service over the internet, often referred to as Firewall-as-a-Service (FWaaS).  

Key Functions of a Firewall:

• Packet Filtering: Examining network packets and blocking those that don't meet security criteria.  
• Application Filtering: Blocking specific applications or protocols.  
• Intrusion Detection and Prevention (IDS/IPS): Identifying and blocking malicious attacks.  
• VPN (Virtual Private Network): Creating secure encrypted connections between remote networks.

TP-Link's Omada series of controllers, namely the OC200, OC300, and OC400, are designed to streamline network management and provide centralized control over your network infrastructure. These hardware controllers offer a range of features to simplify network setup, monitoring, and troubleshooting.   

The DNH-100 is a hardware controller designed to manage D-Link's Nuclias Connect access points. It's a central hub that allows you to:  

• Centralized Management: Control and monitor multiple access points from a single interface.  
• Easy Setup: Simplify the deployment and configuration of access points.  
• Enhanced Security: Implement robust security measures to protect your network.
• Improved Performance: Optimize network performance with features like load balancing and QoS.  
• Scalability: Easily expand your network as your business grows.  

Essentially, the DNH-100 simplifies network management and ensures optimal performance for small to medium-sized businesses.