Different Types of Firewalls
Firewall is a critical network security solution that protects networks and devices from unauthorized access, malware, various cyber threats and malicious attacks. The firewall maintains a wall of security between the internal network and external sources, like the Internet, by monitoring data and controlling traffic according to set rules.
A firewall resides between the network and the broader Internet, monitoring data for clear signs of malicious activity that would breach its perimeter. It filters out malicious and unwanted traffic while allowing legitimate and authorized ones.
It’s important to understand the different types of firewalls available to ensure that you choose the right one for your specific needs. The right firewall can provide the scalable, flexible and centralized protection that you need for your business.
Software Firewalls
Typically, software-based firewall solutions run on individual systems or are embedded in networking equipment such as routers. They monitor data flow and block based on information found in the packets’ headers, including IP addresses, ports and protocols. Software firewalls are less complex and more cost-effective than hardware-based options.
Hardware Firewalls
Unlike software firewalls, hardware firewalls are dedicated appliances that filter data before it reaches the end-user system. They are usually installed in a network between the internal network and the outside world, and can operate at the network or device layer to assess the specific network behavior of individual applications. They can also be configured and managed via a centralized point for greater control.