Friday, February 14, 2020

Analytical Reseach paper on IDS systems SNORT Vs Bro Research

Analytical Reseach on IDS systems SNORT Vs Bro - Research Paper Example Intrusion detection can be carried out automatically as well as manually (Sundaram, 1996). At the present, there exist a large number of intrusion detection systems (IDS). Some intrusion detection systems are available in the open source environment, which make it easier for the organizations to adopt them according to their needs. The basic objective of this research is to provide an analysis of two open source intrusion detection systems: Snort and Bro. The structure of this paper is as follows: first of all an overview of the intrusion detection system is provided, next two sections present an overview of the two IDS systems and after that a comparison of these two IDSs is presented. Basically, an intrusion detection system is an application or device utilized to scrutinize the entire network traffic and notify the administrator or user when there has been an illegal effort or access. There are two major techniques of network traffic monitoring, one is anomaly-based and other is signature-based. Relying on the application or device utilized the intrusion detection system that would be able to either simply observe the administrator or user or it could be placed up to automatically respond in some way or block specific traffic (Bradley, 2015). In this scenario, anomaly based detection in the IDS that compares present network traffic to a known-good baseline to appear for something out of the normal. The intrusion detection system can be placed deliberately on the communication network as a network based intrusion detection or NIDS. This NIDS scrutinizes the entire communication network traffic. It can be installed on every individual communication system like a h ost-based intrusion detection or HIDS that scrutinizes traffic to as well as from that specific device (Bradley, 2015). Martin Roesch developed a NIDS (network intrusion detection system), which is mainly an open source NIDS, and called as Snort. It is basically a packet sniffer, which is

Sunday, February 2, 2020

Global Warming Research Paper Example | Topics and Well Written Essays - 500 words - 1

Global Warming - Research Paper Example Global warming can be referred to as indisputable and continuous increase in the earth’s temperature. Oxlade defines global warming as â€Å"increase in the temperature of the earth’s atmosphere† (4). Global warming has been linked with natural and human (anthropogenic) causes. However, little attention has been given to natural causes and scientists and environmentalists have mainly focused on human causes. Scientists have established that increasing accumulation of greenhouse gases, especially carbon dioxide, in the earth’s atmosphere is the main cause of global warming. Industrialization era has seen much increase in the concentration of carbon dioxide in the earth’s atmosphere. Humans are the main emitters of carbon dioxide through activities that involve combustion of fossil fuels (Haldar 10). There have been massive carbon dioxide emissions from industry, agriculture and transport sectors. Even lighting systems in homes that use fossil fuel have contributed towards global climate change. Moreover, increasing human population has led to deforestation for to create settlement areas and expand agricultural lands. Trees are known to be important for carbon dioxide sequestration. When trees are cut, forests, which store huge amounts of carbon dioxide, cease to be there. This means an increased amount of carbon dioxide that escape into the atmosphere. The impacts of global warming are already evident across the world. Global warming is having serious implication on human health, global economy, and environment. The temperature of sea and oceans are constantly rising and coastal flooding is becoming more common than ever (Haldar 24). Heat waves are becoming a common phenomenon and many places around the world that were once agriculturally productive are turning into deserts (Gupta 24).