A firewall is a standard security tool use by major companies for the protection of their activities against threats of attack or hackers. That is, it is a security device that helps monitors incoming and outgoing network activities and traffic into a company’s home network. It keeps guard and decides whether to allow or block some specific networks or traffics based on a designed set of security rules.
What is a next-generation firewall
A next-generation firewall is a firewall but different from the traditional firewall with some advancements to its services. This is as Gartner gave a deep definition that a next-generation firewall is a deep packet inspection firewall that goes beyond port or protocol inspection and blocking, to add application-level inspection, intrusion prevention, and brings intelligence from outside the firewall.”
What is the traditional firewall
A traditional firewall is that firewall that was first created to simply control the traffic that is allowed to enter and exit a network. And it does that based on designed security rules and depending on the particular protocol it runs.
Basically, next-generation firewalls are more advanced versions of traditional firewalls, even though they offer the same benefits.
Advantages of next-generation firewall
It helps to block malware from entering the network. They help address advanced persistent threats (APTs). Next-generation firewalls can integrate antivirus, firewalls and other security applications into one functions, as such it can be considered as a low-cost option for companies because they are able to do more than one security solution which would have cost them much more if done with different and separate applications.
More also, next-generation firewall includes application inspection I.e to filter packets based on an application which is different from just port or protocol inspection as done by the traditional firewall.
It is so important for major companies to protect their devices and large networks from intrusions and major attacks in order to protect their businesses. As such next-generation firewalls with it advance features are important, although firewalls are not the only solution for protection however, it is a first point precaution.
Different types of firewalls
A proxy firewall is an early firewall device, it serves as a gateway from one network to another for a specific application.
Stateful inspection firewall
This is now considered a traditional firewall. It is such a firewall that allows or blocks traffic based on state, port and protocol.
Unified threat management firewall
The unified threat management firewall (UTM) is one that loosely combines the functions of stateful inspection with intrusion and antivirus prevention.
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What makes a next-generation firewall
From the description of a next-generation firewall, for a firewall to be a next-generation firewall it must include:
Capabilities of a standard firewall such as stateful inspection
Has an integrated intrusion prevention
Has application awareness and control to see and block apps that are risky
Include future feeds
It has techniques to address evolving security threats.
Basic features of a firewall
Intrusion detection and prevention systems (IDS/IPS): the firewalls look at the contents of any packets going through it in order to spot any form of threat like an attack.
Geolocation: This is the ability to link IP addresses to physical locations.
Antivirus and Antimalware: This is its basic feature to examine files uploaded or downloaded which passes through it in order to identify potential threats.
These and many more features are what make a firewall for protection against the threat of any form of attack.
Generally, firewalls whether traditional or next-generation firewalls are a form of fence or burglar proof set up already to prevent any attack against a company’s network.