Considering all these cons, one must ensure that a good firewall is in place to keep the hackers at an arm’s length, keeping them at bay is an arduous task. This paper will shed light upon internet firewall security and how a good firewall can protect a person from malware, Trojan horses and other undesirable viruses. Firewall Basics: “The term "fire wall" originally meant, and still means, a fireproof wall intended to prevent the spread of fire from one room or area of a building to another. The Internet is a volatile and unsafe environment when viewed from a computer-security perspective, therefore "firewall" is an excellent metaphor for network security.” (What is a firewall?) Firewall is not something general, it means several specific things and it is supposed to do several important things to ensure that a user is safeguarded against attacks. Packet filtering is perhaps the most important job of a regular firewall. All the internet activities like downloads, chats and so on are done in packets, and these packets contain information. Firewall must ensure that these packets are either allowed or disallowed based on the source of the internet protocol address known as the IP address. The destination port of these packets is also very important, the firewall is supposed to allow or disallow these packets purely on the basis of their destination port. Firewall must follow a protocol and allow or disallow packets or information based on the set protocol. This method of packet filtering is highly effective against malware and other dangerous attacks but this is not a foolproof plan. All traffic can be blocked by a firewall which does not make much sense; it should allow certain packets which are safe for the user to receive. It has its weaknesses like it becomes very difficult for a basic firewall to detect spoofing which means the information contained in the packets is falsified. Allowed packets may contain a bug which can retrieve a password and cause unwanted actions, a basic firewall is vulnerable to these dangers. Circuit relay is another type of firewall which provides enhanced security, application level gateway is perhaps the most advanced of all and provides even better security. Static Packet Filtering: “Static packet filtering is a firewall and routing capability that provides network packet filtering based only on packet information in the current packet and administrator rules.” (Statistic Packet Filtering) Static packet filtering is based on the following important things: The administrator defines rules. The allowed ports and IP addresses are set by the administrator and only the allowed ports are allowed to send and receive packets. The transport layer contents, the network and the packet contents are all determined by the administrator. Better level of security is provided by the dynamic packet filtering. Static packet filtering does not look at the contents closely, on the contrary dynamic packet filtering screens contents very closely, previous connection states are also considered by dynamic packet filtering which static packet filtering fails to do. The packet headers are very important under static packet filtering, the information stored in the headers determines whether packets should be allowed or dropped. These headers are compared against the control policy which is set by the administrator. Below is an illustration which presents the same concept very comprehensively. (Static Packet
Computer Sciences In APA Format Abstract The invention of the internet has made life unimaginably easier, one can shop online, transfer money online, book movie tickets online, book airline tickets online and in addition to this complete a host of other important tasks with just a few clicks…
These threats can lead to organizations losing their credibility on maintaining security of their clients’ data. Security plans are to help companies identify threats in their network infrastructure. The plan states some of the precautionary measures proposed to provide corrective measures to the network when an infiltration like eaves dropping occurs.
All of these problems are directly associated with IT security issues. Users of information technology products need maximum security in order to deal with these challenges in an appropriate manner. Some of the main network security issues that are yet to be resolved properly include intrusion of worms and viruses, secure storage of cryptographic key, information theft, stealing user data, stealing services, unauthorized use of computing resources and network bandwidth, and insertion of disordered data into the computer systems.
the process of protection information is called Information Security. With the advancement in the technology the companies are storing information at database much more than before. This information is highly confidential and needed to be protected with better security system to prevent public viewing.
Any interconnected system can be termed as a network. Hence interconnected computers formulate a simple network system. It is irrelevant to know that how they are connected. Network security refers to any activities designed to protect your network. According to Radack efficient network security plays a crucial role in preventing the unwanted treats from entering on your network.
Student Name Professor Name ID # Date Security, Privacy and Ethics Introduction At the present, the use of modern technologies such as information systems, computer networks and databases has become essential for the business organizations. Without a doubt, they offer a wide variety of advantages and opportunities for all kinds of businesses.
E-commerce presents a strategic platform that offers organizations and consumers an easy-to-use and convenient way of transacting in business. However, the security concerns regarding the system have caused a majority of business organizations and individual consumers to remain wary of it.
However, this setup is advantageous but there are different problems also associated to these network structures. The threats or problems to this structure include, personal information theft, virus attacks, and business information hacking,
It is also a fact that regular IT security risk assessments will also enable organizations to build up a cache of historical data that can be used to effectively gauge and communicate monetary impact related to risks and, hopefully, convince
ices like banking and finance, personal investment, clothing stores or any other electronic or non-electronic products access consumer by simply logging on to the internet. US President Barack Obama in mentioned in a speech “Technology is reshaping every aspect of our lives,
10 pages (2500 words)Term Paper
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