A Decision Tree Based Rule Formation With Combined Pso Algorithm For Intrusion Detection System

Despite the presence of network security devices such as firewalls and other security appliances, today's corporate networks are still vulnerable to both internal and external attacks by hackers intent on creating havoc. By proactively

The Intrusion Detection System (IDS) is a protection scheme which collect and analyze audit data for the entire network.

Even the focus of securing networks has moved from just intrusion detection to intrusion detection and prevention (Golomb, 2003). Although most companies have significant investments in physical security (security guards and laptop locks) and data security (IDS/IPS and firewalls), one of the biggest and yet most misunderstood threats is from internal sources.

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.

The goal of intrusion detection is to monitor network assets, detect anomalous behavior, and identify misuse within a network (Ashoor, Gore, 2011). An intrusion detection system (IDS) is a device or software application that monitors network system activities for malicious activity or policy violations and produces reports to a management station (Kashyap, Agrawal, Pandey, Keshri, 2013), additionally there are three types of IDS:

A Firewall basically prevents the private network connected to the internet from being accessed by unauthorized user and therefore handles the traffic of internet. Hardware and software firewalls are the types of this network security system. It examines the each data in the network and blocks the data which is not valid and are from unauthorized user. We will discuss here only software firewalls.

Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.

Network Security is the Information Security. Security is provided all hardware and softwares. Network Security enables protection against accidental threats or for any malicious reasons. Enterprise with Local area Networks will be a unit. In the growing world along with the growth in technology abreast threats are flourishing at every point. Correspondingly Network security has been to new heights day by day and side by side threats are multiplying. Managing the entire enterprise networks, security has become a cumbersome task. In an enterprise, there are numerous PC’S, Laptops. Rapid evolution of cloud has made network management more complex.

In order to minimize security threats and establish policies to protect a business, the owners or I/S specialists need to recognize the threats that could potentially happen to their business. Some common security threats include viruses, which could rewrite code creating the software program to be unusable or destroying the data as a whole. Viruses can spread quickly and many are not caught until damage is already created. In order to mitigate these risks, there must be a security plan in place. This could include an antivirus software, or a firewall. A firewall is a “hardware security device that is installed between a computer network and the internet. It acts like a web server, routing traffic, but also blocks external users from

With the advancements in information technology, the security concern of the users in the network is increasing drastically. Various approaches have been adopted to protect respective network from un-authorized users. New innovative methods have been presented in order to identify potential discrepancies that can damage the network. Most commonly used approach for this purpose is vulnerability assessment. Vulnerability can be defined as the potential flaws in the network that make it prone to possible attack by un-authorized user. Assessment of these vulnerabilities provides a way to identify as well as develop innovative strategies in order to protect the network. Numbers of software

Firewalls is categorized as a preventive control which is used as a defense shield around IT systems to keep intruders and hacking from occurring, whereas, an Intrusion Detection System (IDS) which is categorized as a detective control is used to detect intrusions that have already occurred (Cavusoglu, Mishra, & Raghunathan, 2005). However, IDSs are not

Intrusion Detection & Prevention Systems are both very crucial to have for all computers that need to be protected in real time. The 21st Century has shown the most growth in the IDPS’s as more and more threats of all types are made. Although there are a lot of different types of IDPS’s, their functions can be similar or very different, giving you many different types of protection.

In today’s world Network Security plays a vital role to protect the underlying network infrastructure from unauthorized access, malfunction, modification and improper disclosure. Network security helps to create a security platform for users, programs, and computers. Security became a major concern with the explosion of the public internet and e-commerce, private computers and computer networks. This white paper outlines the overview of network security threats and its solution which protects you and your organization from threats and malware and confirms that data travelling across your network is safe.

Every security professional knows that the network security measures depends upon the following three important factors [1]:

INTRUSION DETECTION SYSTEM (IDS): The IDS is a type of security management system for computers and networks. It gathers and analyzes the information from different areas within the computer or a network in order to identify possible security threats, which may include both intrusions and misuse[[98] , [99]]. It is installed between the firewall and personal computer or server as shown in figure 7. The moment the IDS detects the attacks, an alarm is produced that informs the user of the undergoing attacks. It has three core parts- packet sniffing, detection and reporting.