A firewall is a security device that monitors and filters incoming and outgoing network traffic based on security policies previously established by an organization.
What is the function of a firewall?
The main function of a firewall is to create a barrier between the company’s internal network and the external network, allowing specific incoming and outgoing data traffic to be monitored and controlled according to pre-established settings.
As well as being an obstacle to attempted attacks on a company, the firewall can be used by IT as a tool for monitoring the use of the database and other systems and services that are essential to the business.
As the firewall not only blocks, but can also identify and report threats, it is an important ally in the secure management of an environment.
The firewall is very important in IT and business environments, as it is the first defense against invasion and infection by malicious software, and the last in the event of a leak.
As this barrier is at the edge of the network, one of its advantages is that it allows information to be encrypted as soon as it enters or leaves the system, when the solution purchased offers this functionality. The firewall thus isolates the internal network from the external one, giving your IT more peace of mind and employees more freedom to work.
Faster response to attacks
Even with all the dedication and attention of an IT team, the number of attacks on companies is so high that it is difficult (or even impossible) to completely shield an environment. In such cases, what matters is swift action to contain the threat and prevent data from being compromised.
The tool can identify an anomaly in access immediately, something that even antivirus software can’t do in some cases. Once IT has been alerted to the origin and cause of a breach, it can act as soon as possible and deflect the attack before it gains access to important assets.
Types of Firewalls
Packet filtering
A small amount of data is analyzed and distributed according to the filter patterns.
Proxy service
Network security system that protects while filtering messages at the application layer.
Status inspection
Dynamic packet filtering that monitors active connections to determine which network packets to allow through the Firewall.
Next Generation Firewall (NGFW)
Deep packet inspection with application-level inspection.
Master da Web and its servers have a firewall to filter traffic and protect your customers. Talk to our specialized team and find out which plan is best for you and your business. Master da Web, your cloud solution!☁️
