Today, the world is changing with the introduction and excessive use of emerging technologies as well as the advancement of modern technology every day. The purpose of the internet has been increasing over the past decades, and at the same time, it has ushered in new and improved methods of doing things in organizations. This has significantly impacted many industries, which mostly rely on technology in the production process. These new technologies have much helped in improving the performance of organizations, communication, and other areas, too (Kenworthy, 2014). However, these technologies have their merits as well as demerits; hence, individuals and most of the organizations ought to ensure that they have robust security frameworks to help them deal with any emerging threats that can jeopardize their operations and affect their performance (Cooper & Guzik, 2014). Major attacks and security breaches in organizations have affected them due to the lack of security frameworks. However, there are several methods that the organizations can use to ensure that they have excellent and robust security frameworks. Most organizations today use firewalls to protect the data they have and ensure that their operations are not hindered in any way by unauthorized people like hackers.
Beyond physical security, firewalls are one of the first lines of defense for protecting electronic data, either individual data or organization data. Using a firewall entails creating a specific set of filtering rules, commonly referred to as a policy, for networks and the hosts. Developing a firewall policy is usually a complicated process, and, in most instances, the administrators find themselves making errors (Dodis & Stephens-Davidowitz, 2016). To simplify the task of correctly defining a firewall policy, high-level languages, common to the specified device, have been developed. Once the policy is identified, testing is needed to check whether the policy is implemented correctly by the firewall. While the firewall serves to provide security, the firewall must also allow data to pass through to the inside and outside (Cooper & Guzik, 2014). A firewall cannot stop all attacks, but it gives a level of protection to the sensitive information in the organization system. Virtual Private Networks and peer-to-peer networking are emerging technologies, and they pose new challenges to the existing technology of firewalls (Kenworthy, 2014). This essay aims at discussing the types of network firewalls, the protection that firewalls offer from the workers and other unauthorized persons, such as security problems from operating systems and preventing access to information. It will also discuss the protocols that are used by the firewalls and how they work. The importance of firewalls, as well as the disadvantages, will also be considered in the essay.
Various types of firewalls can be implemented to control the traffic in and out of a private network. The network firewalls are categorized according to how they handle the data through them and the mechanism they utilize to route data. Therefore, a firewall helps an organization to have barriers or the boundaries between the trusted internal network and an untrusted external network like the internet (Kenworthy, 2014). This measure is to ensure that any person cannot access the most sensitive information of an organization. Thus, through firewalls, business organizations and the individuals have been able to have robust methods of protecting their data and confidential information from hackers or any other unauthorized persons. Additionally, business organizations need to ensure that they heavily invest in training and also sensitizing their employees about cybersecurity and its importance (Dodis & Stephens-Davidowitz, 2016). This will help the employees in an organization not to bleach the set policy or leaking the company’s sensitive information to other people. In a similar vein, organizations ought to have professionally trained and competent IT experts. They will be working for the organization to help them achieve the goal of securing their data information. There are various types of firewalls which can be implemented by organizations to ensure that the most confidential data of the organization are under high protection (Cooper & Guzik, 2014). These firewalls have different functions, and it is the organization that will decide which one to implement depending on their specific needs. The following are the types of firewalls: