Report on Firewall

Abstract

Introducing the internet in different organizations has brought about many challenges, which include online security issues worldwide. Therefore, the world is seriously trying to combat this problem by trying to introduce some different mechanisms on how the internet can be a safe environment for people and different organizations to work on freely. There have been very many attempts to combat this hydra-headed issue of internet insecurity. The hard research that was laid on the ground trying to find out a solution for this problem led to the discovery of a firewall. A firewall is a security mechanism that monitors and controls both incoming and outgoing network traffic based on the system state rules. It tries to bridge the trust issues from an organization’s external networking systems and internal networks. That is why this research has tried to scrutinize firewall security and found out that this is still the relevant technology in combating network insecurity challenges.

Introduction

In today’s digital age where everything which including bank transactions, job applications, and file sharing is done online due to network connections from one point to another surely needed a proper mechanism of protection. This is because the files going in and out of different organizations should be properly scanned to limit the risks and damage the information might cause in an institution. This scanning or scrutiny ensures that the data transmitted through the internet is free and safe for use by anyone in any organization. That is the reason researchers came up with Firewalls as the best option that can help in protecting and securing your files, network computers, home personal computers, and office computers.

The purpose of the firewall is to protect your organization or industry from intruders and hackers. It protects your systems from very dangerous and offensive software that are used by hackers and intruders to harm your computer files or your system (Tkachov et al., 2018). Using systems that are not protected or computers that are not protected in your organization is very harmful not only to an organization but also to the organization’s clients. An effective firewall helps your systems by isolating them from the internet by using special codes that set up a blockade that is mandated to inspect each packet of data from your systems (Pasterski and Verlinde, 2021). The work of each packet is to grant the files or information set to your system access or deny them an entry that is if they are will be harmful to your computer system. That also applies to the files or the data you send from your computer.

The packets also do not allow you to send very dangerous data that can damage other systems. That is why the firewall is mandated to monitor and control the incoming and outgoing network traffic based on the set security rules of the firewall system. Security administrators can set these rules to allow the network traffic to their FTP servers, Telnet servers, web servers, which mean firewall gives the computer owner control over the traffic of their systems.

Firewall incorporated in a network security system.

Types of firewalls

They majorly divided the Firewall security into three categories, stateful inspection firewalls, application proxy firewalls, and packet filtering firewalls. The three mentioned types of firewalls are always referred to as gateway server firewalls.

Packet filtering firewall

These are the most basic firewall technology that is available, In a packet filtering firewall the firewall filters each packet that is going through based on where they are coming from such as, the IP address, it accesses the IP address to access whether it can be allowed to pass through the firewall (McDonald et al., 2020).

Stateful inspection firewalls

These are the most common firewalls that are deployed in most organizations today. They are the most efficient in protecting your network mechanism and also protecting network borders at large. They monitor the state of each active connection when a new packet arrives; it first checks it to ensure that it is a recognized or allowed connection (Li et al., 2019). If it is does not recognize, the packet will then hold the new pack first and start conducting a security check before it gives it a clear pass.

Proxy firewalls

Proxy differs from the two because it does not allow any packets to go directly through any protected firewalls. Instated, they create a proxy connection for all the packets to go through. The proxy firewalls contain advanced inspection capabilities that allow it to detect very dangerous and harmful application-layer attacks such as SQL injection attacks, and buffer overflow attempts.

The policies of firewall configuration

The firewall policies were put in place because of the activities of the packet filters that were found in the firewall. Filters of a firewall have two major filters the dirty port and a clean port. The dirty port is where all the internet traffic enters because they expose it to the internet (Hu et al., 2019). It processed the traffic that enters through this port according to the set rules and regulations of the firewall. If the traffic passes the dirty port successfully, then the firewall will allow it to go through the clean port.

The Domain Name Service servers for this domain are 129.1.5.152 and 129.1.5.153, respectively. Only UDP is necessary in all cases for proper DNS services. It required TCP in two situations: when a DNS zone transfer is necessary, and when the response is too large to fit inside a single UDP packet.

A firewall’s intricacy raises with the size of its standard set policy rules. Observational investigations show that as the standard set becomes bigger, the quantity of design errors on a firewall raises strongly, while the presentation of the firewall degrades (Clincy and Shahriar, 2018). When planning a security-touchy organization, it is basic to develop the organization topography and its steering structure cautiously to lessen the multi-firewall rule sets, which helps bring down the shot at security escape clauses and forestall execution bottleneck.

Means of the firewall technology

Composite innovation

Composite innovation is one of the viable techniques for the far-reaching use of a firewall. It helps to give more steady and secure defensive measures, diminishing the misbehaviour in the utilization of firewalls. The composite capacity of firewall innovation is turning out to be increasingly developed. As of now, the composite capacity of firewall innovation is turning out to be increasingly developed (Tsuchiya et al., 2018). The grouping of firewall innovation exemplifies the qualities of variety, is against infection programming, firewalls and alert frameworks of complete innovation.

Use access approaches

In the first place, using firewalls, it can separate the utilization of the Internet into intranet and extranet. Second, the firewall innovation can be used before entering the framework. Have a fundamental comprehension of one another’s frameworks and conditions. To work regardless, guarantee security factor (Shirali-Shahreza and Ganjali, 2018). At last, PC organizations and access approaches use various types of insurance. Access arrangements depend on the security prerequisites of PC organizations. Improving firewall changes, to work on the security of PC network insurance (Neupane et al., 2018). In addition, considering the procedure sheet, access strategy, definite recording of movements of every kind of the entrance strategy. The dynamic recognition framework can work on the security of the PC assurance framework. To compensate for the current disappointment of PCs, to look at their areas of expertise and outside data, it merged firewall and PC antivirus programming.

Conclusion

A firewall is a recommendation for the safeness of any organization or personal computer user. It is the best for tracking and safeguarding an organization’s data. In addition, the report has also addressed the Firewalls and their importance to any organization.

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Reference

Pasterski, S. and Verlinde, H., 2021. HPS meets AMPS: how soft hair dissolves the firewall. Journal of High Energy Physics, 2021(9), pp.1-37.

McDonald, B., Zucoloto, A.Z., Yu, I.L., Burkhard, R., Brown, K., Geuking, M.B. and McCoy, K.D., 2020. Programing of an intravascular immune firewall by the gut microbiota protects against pathogen dissemination during infection. Cell host & microbe, 28(5), pp.660-668.

Li, D., Guo, H., Zhou, J., Zhou, L. and Wong, J.W., 2019. SCADAWall: A CPI-enabled firewall model for SCADA security. Computers & Security, 80, pp.134-154.

Hu, H., Han, W., Kyung, S., Wang, J., Ahn, G.J., Zhao, Z. and Li, H., 2019. Towards a reliable firewall for software-defined networks. Computers & Security, 87, p.101597.

Clincy, V. and Shahriar, H., 2018, July. Web application firewall: Network security models and configuration. In 2018 IEEE 42nd Annual Computer Software and Applications Conference (COMPSAC) (Vol. 1, pp. 835-836). IEEE.

Tsuchiya, A., Fraile, F., Koshijima, I., Ortiz, A. and Poler, R., 2018. Software defined networking firewall for industry 4.0 manufacturing systems. Journal of Industrial Engineering and Management (JIEM), 11(2), pp.318-333.

Shirali-Shahreza, S. and Ganjali, Y., 2018. Protecting home user devices with an SDN-based firewall. IEEE Transactions on Consumer Electronics, 64(1), pp.92-100.

Neupane, K., Haddad, R. and Chen, L., 2018, April. Next generation firewall for network security: A survey. In SoutheastCon 2018 (pp. 1-6). IEEE.

Tkachov, V., Hunko, M. and Volotka, V., 2019, October. Scenarios for Implementation of Nested Virtualization Technology in Task of Improving Cloud Firewall Fault Tolerance. In 2019 IEEE International Scientific-Practical Conference Problems of Infocommunications, Science and Technology (PIC S&T) (pp. 759-763). IEEE.