An Overview of Firewall Types, Technologies, and Functionalities (original) (raw)

A Survey on the Different Firewall Technologies

International journal of engineering applied science and technology, 2020

Given the importance of internet in our day to day lives in today's world, network security is of utmost importance. A firewall acts as a barrier that provides security by filtering traffic. However, traditional firewalls are no longer capable of overcoming new security threats. In this paper, the different types of firewalls, their functionalities and their drawbacks are discussed. This paper talks about the advantages that the different types of firewalls offer. This is a systematic study of the different research work that has been carried out in the different Firewall technologies over the last few years. The firewall types which are discussed mainly are Packet filtering, Circuit level gateways, Stateful inspection, Proxy firewalls, Next Generation firewalls and Cloud based firewalls.

An overview of firewall technologies

The increasing complexity of networks, and the need to make them more open due to the growing emphasis on and attractiveness of the Internet as a medium for business transactions, mean that networks are becoming more and more exposed to attacks, both from without and from within. The search is on for mechanisms and techniques for the protection of internal networks from such attacks. One of the protective mechanisms under serious consideration is the firewall. A firewall protects a network by guarding the points of entry to it. Firewalls are becoming more sophisticated by the day, and new features are constantly being added, so that, in spite of the criticisms made of them and developmental trends threatening them, they are still a powerful protective mechanism. This article provides an overview of firewall technologies.

Firewalls: A study on Techniques, Security and Threats

2019

Information and excitement for computer system security is developing day by day along with its requirement. The interest is no uncertainty, due to the advancements with the extension of web services and due to the extension in the quantity of organizations that usually placing their deals and data channels on the internet or web. Web security has turned into a noteworthy issue in the present pattern of things. And it’s like an evil which whenever left to spread will in a matter of seconds have consequences for every one of us. This paper hence analyzes web security with a glance at firewall and how it can help secure the system and web. A firewall is a piece of a computer or network system that is configured to prevent communication from unauthorized sources whereas allowing access from authorized sources. The techniques and kinds of firewalls are additionally talked about. The paper further examines firewall and how it can help in web security, business security and individual sys...

A History and Survey of Network Firewalls

Firewalls are network devices which enforce an organization's security policy. Since their development, various methods have been used to implement firewalls. These methods filter network traffic at one or more of the seven layers of the ISO network model, most commonly at the application, transport, and network, and data-link levels. In addition, researchers have developed some newer methods, such as protocol normalization and distributed firewalls, which have not yet been widely adopted. Firewalls involve more than the technology to implement them. Specifying a set of filtering rules, known as a policy, is typically complicated and error-prone. High-level languages have been developed to simplify the task of correctly defining a firewall's policy. Once a policy has been specified, the firewall needs to be tested to determine if it actually implements the policy correctly. Little work exists in the area of firewall theory; however, this article summarizes what exists. Because some data must be able to pass in and out of a firewall, in order for the protected network to be useful, not all attacks can be stopped by firewalls. Some emerging technologies, such as Virtual Private Networks (VPN) and peer-to-peer networking pose new challenges for firewalls.

A Reference Model for Firewall Technology

1997

This paper concentrates on one particular technological aspect of providing communications security, firewall technology. Currently firewall technology is a specialized engineering solution rather than a scientifically based solution.

Network security, filters and firewalls

XRDS: Crossroads, The ACM Magazine for Students, 1995

This article is a general introduction to network security issues and solutions in the Internet; emphasis is placed on route filters and firewalls. It is not intended as a guide to setting up a secure network; its purpose is merely as an overview. Some knowledge of IP networking is assumed, although not crucial.

Security Issues of Firewall

2016

The need of Network Security is accelerating at the same pace as that of increased Internet usage. Network Security prevents from illegitimate admittance, hacking andauthentic data transportation. Network Security consist of provisions and policies adopted by a network administrator to preclude and monitor unauthorized access, alterations, perversion, declination of a computer network and network-accessible resources. Network Security is achieved by Firewall. Firewall is a hardware or software device which is designed to permit or refuse network transmissions based upon certain protocols. Firewall is a locus at the endpoints of the system which strains out all illegitimate traffic and users. But conventional or traditional firewalls rely strictly on the restricted topology and restrained entry points to function; which results in difficulty in filtering certain protocols, end-to-end encryption problem etc. Hence, it resulted inthe evolution of Distributed Firewall which strengthens ...

The Empirical Study of the Evolution of the Next Generation Firewalls

Even after the adoption of network security policies and practices, unauthorized intrusion occurs. It is an attack in which attacker gets access to the system by means of different hacking and cracking techniques. Firewall is hardware-software based network security system that uses rules to control incoming and outgoing network packet. A firewall controls access to the resources of a network through a positive control model. There are various traditional firewalls like Packet Filters, Application-level Gateways and Circuit-level Gateways which has certain pros and cons. To overcome disadvantages the traditional firewall, next generation firewalls are introduced. This paper gives the empirical study of tradition firewalls, and its evolution to Next Generation firewall like NGFW, UTM, Threat focused its features and advantages. Manisha Patil | Savita Mohurle"The Empirical Study of the Evolution of the Next Generation Firewalls" Published in International Journal of Trend in...

IRJET - A Survey on Emergent Firewall Techniques in Computer Networks

IRJET, 2021

Network security is a system that is developed to monitor the malicious activities and safeguard the network, which includes the authentication of information access in a network, that is being controlled by the network administrator. A firewall in a network security system is a tool/software that monitors and controls network traffic. The role of a Firewall is most evident inthe huge organizations or a business. For smooth run of any organization, it is very important to protect their data as well as their client's data. The Firewall helps in ensuring the safety of sensitive and confidential data that the businesses is currentlydealing with. In modern-day scenario, there is no better option for organizations to protect their data than a robust Firewall. It also aids the network administrators to keep the data virus free andalso prevent any intruders from accessing the data. In this paper we bring out the features that the current firewall techniques isoffering and also analyze the same with respect to different network scenarios. In this paper, we are comparing and analyzing different firewall techniques that are of great help by providing useful insights to the cyber security industry. .