Firewall And The Security Levels

Firewall is “a computer security program that blocks incoming network traffic based on certain predetermined criteria”. Firewalls have details logs, that can hold a wealth of information about the network to the forensics investigations. The firewall logs can also have details about the hardware failures. Successful/unsuccessful connection attempts, users added on, and any permissions changed. You can also find evidence on the backdoors.

By using the border, internal and host firewalls, this is what creates defense in depth. Because an attacker must defeat all of these devices in order to get into a company’s network to cause great damage (Boyle & Panko, 2015, pp.

1.1.4.c Observe network configurations to verify that a firewall is in place at each Internet connection and between any demilitarized zone (DMZ) and the internal network zone, per the documented configuration standards and network diagrams.

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

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.

Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge

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

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

“Security needs to be addressed as a continued lifecycle to be effective. Daily, there are new attack signatures being developed, viruses and worms being written, natural disasters occurring, changes in the organization workplace taking place and new technologies evolving, these all effect the security posture in the organization” (King, 2002). This being said, it is important to evaluate firewall and router rule sets more frequently. The possible threats against this policy include improperly configured network infrastructure which leads to a domino effect that could start with malicious programming which could end in data loss. Many of these threats may be unintentional as some users may not be aware of the risks and how their processes and procedures open the door for such attacks. For this reason alone, a more frequent evaluation is needed. This vulnerability could lead to data loss and the exposure of trade secrets, client lists and product design. The exposure of such information for most companies could mean a financial collapse as it no longer has the competitive edge that makes it the industry leader. While the likelihood of this threat is very high, “security risks to the network exist if users do not follow the security policy. Security weaknesses emerge when there is no clear cut or written security policy document. A security policy meets these goals:

Inorder to construct firewall to protect local area network of a company first we need to consider the network outline of the company.

Packet filtering is the earliest technology developed to protect the network from dangers in the Internet. It works at network transport layer. A data is split in to several packets and then reassembled back once it has reached its destination. Administrators creates a set of rules which will then be configured to the router, router will then act as a security guard, will either deny or allow packets from passing through. However packet filtering has only limited function, it can only analyze header information in IP packets. For an instance it can all allow or deny specific functions of FTP such as the use of “GET” and “PUT” command (Ogletree, 2000). Packet filtering susceptible to IP Spoofing (Webopedia, 2011). IP Spoofing is used by

In an e-commerce world, organizations are susceptible to hackers and intruders. Thus creating the information technology protection systems which is used to reduce the possibility of intrusions from occurring. Intrusions occur by uninvited outsiders (sometimes intruders can be internal users like employees) who try to access an organization’s information system using the internet with the intent to gain competitive advantage of some sort. Organizations depend on security technology to avoid loss from security breach, as well as to improve their efficiency and effectiveness. However, firewalls are also vulnerable to errors, and implementing a security technology comes with challenges and critical decisions that can possibly cause a financial burden on the organization if done without seriousness and commitment. “Information security is about managing risk, and managing risk is about discovering and measuring threats to information assets; and taking actions to respond to those threats” (Al-Awadi, & Renaud, 2007, p.3). This paper will discuss a few aspects that are involved with firewalls and intrusion detection systems.

The firewall provides protections against network intrusions by hosting intrusion prevention system modules to detect and prevent traffic that would disrupt the normal operations of the company. These security features will be configured to offer the greatest protection while allowing Pathways Industries personnel and their partners efficient access to the

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

A firewall is a system or group of systems that enforces an access control policy between two or more networks. The means by which this control is accomplished varies widely, but in principle, the firewall is a pair of mechanisms, one that blocks traffic and one that permits traffic. Some firewalls emphasize blocking traffic, while others emphasize permitting traffic. The most important thing to recognize about a firewall is that it implements an access control policy. If you don't know what kind of access you want to permit or deny, or you let someone else or some product configure a firewall based on judgment other than yours, that entity is making policy for your whole organization.