Firewalls are used in businesses to help prevent attacks, mitigate security issues, and provide a sense of known security for the organization. Firewall characteristics are generally the same from firewall brand or vendor to another in that they provide authorized access only into a network. This review will look into the common security features that are present within firewalls and how they are used in daily functions to help prevent issues that threaten organizations. Firewalls work by preventing unauthorized access into a network by monitoring and enabling / disabling traffic via security policies and procedures. Grimes states, “Firewalls work by inspecting and filtering packet traffic between two networks. Firewalls are categorized according to the layer of the Open System Interconnection (OSI) model that they inspect. Most firewalls are packet filters, meaning they work at the network layer of the OSI model and make logic decisions based on the packet's IP addresses (source and destination), IP port numbers, and whether the packet is in UDP or TCP format. Circuit-layer firewalls work at the transport layer of the OSI model and inspect host-session information. Circuit-layer firewalls can block packets based on the host name and other IP session information such as flags and sequencing numbers” (Grimes, 2003). Some recent firewalls even include autoban features that help monitor network activity and autoban a point of entry (often IP address or port) that alleviates known attacks or patterns of attacks such as DDOS. Many firewalls now include monitoring and reporting activities to alert Information technology staff that an issue is or has occurred and what steps were taken automatically by the firewall to prevent the issue. ... ... middle of paper ... ...h as viruses or tracking mechanisms, and more. Newer software based firewalls have built in technology that helps in this type of filtering upon initial implementation. McAffee’s newest software firewall provides several filtering characteristics including folder and file encryption check on traffic exchange, social network protection, and more. Other characteristics include functionality to block questionable websites in over 35 categories, block file sharing and peer to peer networking protocols, monitor encrypted site activity, and more. (McAffee, 2014). References Grimes, Roger. (2003). Types of Firewall Filters. Windows IT Pro. http://windowsitpro.com/security/types-firewall-filters McAffee. (2014). http://home.mcafee.com/store/total-protection ZoneAlarm. (2014). What makes a good firewall. http://www.zonealarm.com/security/en-us/firewall/good-firewall.htm
date with the latest software and security patches. Reputable antivirus programs such as Norton Security, McAfee Antivirus, and Bitdefender Antivirus and firewall programs should be installed and kept up to date for maximum protection.
SPI – Stateful Packet Inspection – is a method of monitoring the state of active connections in order to determine what packets to allow access through a firewall.
Firewall features are provided at the base of network virtualization platforms to bring about segmentation. It allows automated provisioning and context sharing across virtual platforms which lead to increased visibility and security across applications on virtual or physical workloads. This would have been impossible in the past as it would compromise either security or performance. Improved security through virtualization helps you gain mileage over challenges that would otherwise ruin your reputation among clients (Kotsovinos,
What concerns the government of the United States most is the security of the critical infrastructure from the cyber threats. The nation is depending heavily on the technology in most of its critical sectors to keep it up and running. Thus, this makes its more vulnerable to cyber-attacks from outsiders and insiders. Therefore, its protection must be a priority.
When it comes to protecting an infrastructure, careful planning and coordination needs to take place. Protecting an infrastructure takes an important security initiative called Critical Infrastructure Protection (CIP). The United States critical infrastructure is protected by the Department of Homeland Security.
Johansson, Jesper M. "Managing the Windows Vista Firewall." TechNet 2008: n. pag. Web. 14 Nov. 2013. http://technet.microsoft.com/en-us/magazine/2008.06.security.aspx
Wi-Fi facilitates ease of use and is getting increasingly popular with homes and businesses. Multiple Wi-Fi Access Points can be located in a given area. Wi-Fi security issues continue to be a problem, as the number of Access Points grows.
The packet-filtering firewall will keep out unauthorized data from entering the network and reduce the number of ports that are accessible by the users and outside threats.
Although Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) have been grouped together here (IDPS), there are distinctions between them. On the most basic level, both will monitor the network...
ABSTRACT : This paper describes the basic threats to the network security and the basic issues of interest in designing a secure network. it describes the important aspects of network security. A secure network is one which is free of unauthorized entries and hackers. INTRODUCTION
The additional flexibility of the screened host firewall is cause for two concerns. First, there are now two systems, the router and the application gateway, that need to be configured carefully. As noted before, packet filtering router rules can be complex to configure, difficult to test, and prone to mistakes that lead to holes through the router.
This paper is going to discuss wireless security from a broad view where I will go into why exactly wireless security is so important especially today as the ways in which we are communicating is changing dramatically. From there I will discuss the multiple wireless securities that are available to give a better understanding of the options given. Then I will go into why exactly not protecting your wireless can be so dangerous with some descriptions on the most dangerous wireless attacks out there today. Finally I will then discuss how we can better prepare for these types of attacks with a synopsis on several effective security methods that will help to ensure data is securely passed and kept hidden.
In order to have an effective physical security program you need to know what you are protecting and why you are protecting it. Physical Security encompasses the protection of people, places, things, and data. Protecting each of these elements requires different pieces of equipment or different avenues but the philosophy of the protection is the same. In this I mean that you are protecting from unauthorized access to the places, people, things, and data.
The human factor of physical security consists of the people who own the property being protected, the people who work at the property or those that visit the property/protected area, and the security personnel guarding the property.