What is layered security? A method of adding different parts of security in order to either prevent or slow down attackers from entering an information system. Most times layered security is referred to defense in depth. A layered security system have things incorporated such as Firewalls, DMZ, antivirus, and Intrusion Detection Services. The list can be much longer. The purpose of a layered security system is to provide as much protection to the Information system as possible. No one can ever be sure how or when an attacker will attack, but layering the security measures on an information system will help keep it safe. Layered security measures are implemented in places such as big companies, school, and government facilities. At one point in time companies more afraid of thieves breaking and entering into their establishment implementing physical layered security, i.e. guards, motion detectors, sensors on windows, and so on and so on. Now a days the attackers are not breaking and entering they are entering the networks and retrieving sensitive information. Today have just one security measure in place is just not enough, so hence the layered security is so much more important. A basic example of a layered security system is one of a home security service such as “Norton, who provide services like an antivirus application, a firewall application, an anti-spam application, parental controls, and privacy controls.” (Perrin, 2008)
Firewalls
The firewall is commonly the first line of defense in the layered security structure. Also known as a broader sentry. “The firewall protects the internal network from unauthorized access from the internet, but also has the ability to protect internet from rogue users or applicatio...
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...erstanding Layered Security and Defense in Depth. Retrieved from techrepublic.com: http://www.techrepublic.com/blog/it-security/understanding-layered-security-and-defense-in-depth/703/
Schauland, D. (2014, February 16 ). In Computer Networking, What Is DMZ? Retrieved from www.wisegeek.org: http://www.wisegeek.org/in-computer-networking-what-is-dmz.htm
Shenk, J. (2013). Layered Security: Why It Works. SANS™ Institute.
Shinder, D. (2005, June 29). SolutionBase: Strengthen network defenses by using a DMZ. Retrieved from Techrepublic.com: http://www.techrepublic.com/article/solutionbase-strengthen-network-defenses-by-using-a-dmz/
Stewart, J. M. (2011). Network Security, Firewalls, and VPNs. Burlington: Jones & Bartlett Learning, LLC.
Tyson, J. (2001, April 6). How Encryption Works. Retrieved from howstufworks.com: http://computer.howstuffworks.com/encryption2.htm
“The first role is to protect internal clients from malicious external servers. All client connections to external servers are proxied through a single application proxy firewall.” (p.339)
and their use. In Committee on Deterring Cyber attacks: Informing Strategies and Developing Options (Ed.), Proceedings of a Workshop on Deterring Cyber attacks: Informing Strategies and Developing Options for U.S. Policy. Washington, D.C.: National Academies Press.
DMZ – Demilitarized Zone - (sometimes referred to as a perimeter network) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to a larger and untrusted network, usually the
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 is IP spoofing? - A Word Definition From the Webopedia Computer Dictionary. (n.d.). Retrieved from http://www.webopedia.com/TERM/I/IP_spoofing.html
Network Security is the protection of the computer’s network though out the entire infrastructure. It can protect very important information and computer files to help prevent theft, spyware, malware, viruses, and more. Depending on if you have a public or private network, can determine what type of security settings you need for your network. All people are different on what they want to have secured or not, but most people do not know how to prevent people or things from getting in their network. “You must have a general understanding of security terminology and specifications as it relates to configuring hardware and software systems.”(Roberts, Richard M. 599). That quote states that by knowing and understanding security terms and specifics, you can
Although VPN is very popular in the market for networking technology, it may raise some concerns for IT managers. VPN requires an in-depth understanding of public network security issues and proper deployment precautions. The task of choosing and deploying a VPN solution is far from being simple and may require the training of workers in at least the basics...
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.
It has been demonstrated that a number of interoperable systems must be implemented to fully protect a network; a strategy known as Defense in Depth. Due to the multitude of security devices and device categories available, it can be very difficult to identify the correct tools for meeting security goals. Using the Defense in Depth strategy will require an understanding of the interactions between devices occuring within the network.
Cybersecurity is the technology that protects computers and networks from unauthorized personnel. Ever since computers have expanded to homes and the workplace; the need for cyber security has grown exponentially. Millions of people around the world have access to the internet at a given time, and this allows for predators to attack, scam, hack, and intrude on personal and government information. Cybersecurity is designed to counteract these attempts to ultimately allow for safe networks and computers.
To combat those threats and ensure that e-business transactions are not compromised, security technology must play a major role in today's networks. Why Networks Must Be Secured? Attacks: -. Without proper protection, any part of any network can be susceptible to attacks or unauthorized activity. Routers, switches, and hosts can all be violated by professional hackers, company competitors.
...vantage of the overall network design and implement usable subnets with virtual local area networks. Use encryption and encapsulation to secure communications of public segments to enable extranets and cross-Internet company traffic. Use items such as intrusion detection systems and firewalls to keep unauthorized users out and monitor activity. Taken together, these pieces can make a secure network that is efficient, manageable, and effective.
Melford, RJ 1993, 'Network security ', The Internal Auditor, vol. 50, no. 1, p. 18.
The network management plan and security plan is important to help the company figure out how they will improve its network and security procedures for the company. Planning involves outlining objectiv...