Firewall

A firewall acts the role of a security guard on your computer. It is the first step to protecting your PC as it blocks unknown programs from entering the computer through the internet. There are two types of firewalls that could be installed in a computer, a software firewall, and a hardware firewall. These two safety nets serve a similar purpose of protecting the PC but in a different way. The software firewall is an application installed so as to perform its task while a hardware firewall is a device connected to the computer. The best type of firewall for a home computer is the software as it is easy to install and use. It is important to always make sure that the firewall is on at all times, especially when using the internet to ensure no entry of unknown…

that it is well-known retail business that sells for its customer’s luxury, unique, and vintage products. It focuses on B2C aspect more than B2B, so their customers are their top priority. They had a security breach into their system which locked their website completely and their customers could not access the website. The support team are getting a dozen of emails every minute and the content of the email are words such as “ha ha?”. They are not sure what causes the breach in the first place,…

Both firewalls and intrusion detection systems are used to monitor network traffic and implement network security policies. Research these technologies and determine how they are similar and how they differ. Are both needed? Explain your answer in a short paper. Firewall From a definition standpoint, a firewall is a hardware or software used in a networked environment to block unauthorized access by individuals while permitting authorized communications to and from the user. The firewall is…

Implementing Firewall Filter Implementing firewall filters on a network makes the network free from attackers and very secured. Some of the boundaries that I will consider using on my firewall will be blocking ports on the network. First of all I will establish a new FTP session which the will initiate a connection to an FTP server that listens on TCP port 21 by default. This will help users on the network to login with user name and password before any data to port 21 will accepted. I…

As with the advances in computer technology, it appears that the world is experiencing a breakthrough with the massive explosion of computer usage has brought so many modern amenities to make our life easier although it raises a question about vulnerabilities in the computer infrastructure. As the matter of fact, today’s modern lives tend to rely on computers to reach a quest where machines are assigned to reduce human effort. Computer hacking is defined as a threat, which poses to security as…

1.10 FIREWELL: Firewall is a physical security device that cleaned in specs traffic coming from one network to a different network. A firewall is a system that implements an access control policy among two networks. Example: “Allows: http, mails etc. Keeps out: intruders, denial of services attacks etc.” 1.10.1 Firewall work: The protocol that computers use to be in touch on the internet is called TCP/IP. Each computer on the Internet has a only one of its kind internet protocol and…

Firewalls can be deployed on a machine, router, or LAN switch for service, direction, user, and behavior control. The firewall categories are: packet filtering firewall, which is beneficent in controlling the Internet Protocol (IP) address spoofing, source routing, and tiny fragments attacks; stateful inspection firewalls; application level gateways; and circuit level gateways. Similarly, the IPS systems are either host-based or network-based. Host-based IPS is used to protect against the…

M5A1 Short Paper: Encryption and Firewalls Questions 1. Was the firewall and Web server used by Linen Planet providing encryption services? If so, what kind of protection was in place? 2. How could the access to Linen Planet’s Web server have been better secured? Padma Santhanam, the CTO of Linen Planet, is traveling to work and get an urgent request to log in to the work order system and approve the change request (Whitman & Mattord, 2010). If this is not done they will miss the window for…

1). In 2012, a group of physicists demonstrated in a thought experiment that Susskind’s complementarity violated the rules of quantum entanglement. The AMPS firewall paradox, named after and proposed by Ahmed Almheiri, Donald Marolf, Joseph Polchinski, and James Sully, is an inconsistency that occurs as a result of the incompatibility between Einstein’s theory of general relativity and quantum theory. The paradox involves a particle with multiple entanglements, and the firewall resulting from…

The reason for blocking ports from the normal traffic is the access control. Firstly, firewalls used to block ports is to defend a network parties which is trying to access the internal service from outside. The unused and unsafe ports should be closed when they are not in use in case of the attacks through these ports. The blocking service prevents the DNS Spoofing, which is an attack to return an incorrect IP address as the response. Secondly, the firewalls restrict the service that are deemed…