Research in Network Infrastructure

Information security is a business requirement and also a legal requirement, subsequently firewalls are set up as security from viruses and backups are implemented to ensure no information is lost.

Networking is part of our everyday lives now. Weather is us using our phones, computer, using GPS for directions, watching 3D movies and TV’s or in our work environments. Network Security has become search a big issue since our day to day live started to be more involve with us. These problems involve in all type of shapes and forms where some of these issues are cyber attacks, physical attacks, or abuse of policies. People are really exposed due to the amount of internet activities we have going on in most of our networks. There are two fundamentally different when it comes to networking, the data networks and the synchronous network comprised of switches. With that being said there are also

In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in

Firewall: A firewall is a software or hardware-based network security system that controls the incoming and outgoing network traffic by analysing the data packets and

The firewall comes in hardware or software form and acts as a filter for all data

I would define a network as a group of computers that are connected together with physical cables or wireless capabilities along with a series of peripheral devices such as, routers, switches, servers or printers etc…for sharing data, software and other resources between different users. When talking about bandwidth, it is a range of frequencies or wavelengths in which data is transmitted. With digital devices, bandwidth is calculated by bits per second or bytes per second and with analog devices, by cycles per second, or hertz.

A firewall protects networked computers from intentional hostile intrusion that could compromise confidentiality or result in data corruption or denial of service. It may be a hardware device or a software program running on a secure host computer. It must have at least two network interfaces, one of the network it is intended to protect, and one for the network it exposed

Firewall is the first step to good defense from intruders or attackers. Firewall security has gotten to be big business, because it’s can be programmed to fit Kudler’s network and infrastructure form the inside out. For one reason a good firewall is essential in the verification of all authenticated user either internal or external. One of the top firewalls out there is” Barracuda’s powerful, best-of-breed security products secure your organizations threat vectors – email, web applications, remote access, web browsing, mobile Internet, and network perimeters whether on premises or in the cloud” (2015). Having one of these and maintaining the firewall is critical to Kudler’s Fine Foods

The most secure networks are those that incorporate a virtual area network. This allows updating of information by employees and approvals or verification of those updates by authorized personnel. Access to this information calls for password and username protection by way of 128-bit encryption standards. If further, more detailed information would need updating or change, an authorized person will be required to input their information, including fingerprints. This is called multi factor authentication.

A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or a combination of both. Firewalls prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet (i.e., the local network to which you are connected) must pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria. In protecting private information, a firewall is considered a first line of defense; it cannot be the only line of defense. Firewalls are generally designed to protect network traffic and connections, and therefore do not attempt to authenticate individual users when determining who can access a particular computer or network. Furthermore, firewalls can be set up to prevent employees from accessing certain content or downloading

Firewalls are used to separate networks with differing security requirements, such as the Internet and an internal network that houses servers with sensitive data. Duke Energy should use firewalls wherever their internal networks and systems interface with external networks and systems, and where security requirements vary among their internal networks. Threats have gradually moved from being most prevalent in lower layers of network traffic to the application layer, which has reduced the general effectiveness of firewalls to stop threats carried through network communications (Scarfone, & Hoffman, 2009). However, firewalls are still needed to stop the significant threats that continue to work at lower layers of network traffic.

Firewalls monitor network traffic in real time and either allows or denies certain traffic into or out of the network based on the type of firewall and the rules they are programmed to follow. Firewalls are a very important baseline in system infrastructure and design.

Firewalls are also important because they are a single point where you can impose security and auditing. If someone attacks a computer system by dialing in with a modem, tracing the perpetrator is impossible. In contrast, the firewall can act as an effective phone tap and tracing tool. Firewalls also provide an important logging and auditing function, summarizing topics such as the kinds and amount of traffic that passed through it and how many attempted break-ins occurred recently.

Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.

The always and ever increasing quantity of products with IP routers are incorporating packet filtering as a tool to help in improving the network security if utilized in the proper way, packet filtering is a great tool for a network’s security or networks administrators that are security conscious but in order for it to be used effectively one must have an in-depth understanding of its many capabilities and weaknesses, advantages and disadvantages and what type of particular protocol that the filters are being applied to. This paper begin by defining firewall and identifying the different types of firewall then goes into Packet filtering describing some of the characteristics and some of the application protocol then the paper identified