Intrusion Detection System Essential Tool For Computer Security

by Alex Smith   |   0 Comments  |   345 Views    |   0/5 Rating   |   Print This Article
152 articles online.
Dec 14th, 2011
Send to friend

Worried about intruders attacking your network enterprise? Do not surround yourself with clouds of tensions, but rather seek for intrusion detection software (IDS). Electronic attacks can hamper the operation of Information systems and networks. IDS is a must have tool especially if you are planning for serious in depth computer security. Antivirus scanners point known worms, Trojan horses and viruses, and firewalls halt port intruders. However, what about activities taking place in the network packets? The IDS is capable of detecting whether port 80 traffic is a web request or an Instant messaging file transfer. On the contrary, firewalls and scanners are not capable of holding buffer overflow attack or cannot make out the latest SQL injection attack. Advanced high end IDS is capable of dropping the packet before harm is disseminated. It is also designed to alter or modify the security parameter ruling out the possibilities that may harm the network.

Intrusion detection system can be categorized in the following ways:

Misuse detection vs. anomaly detection

In misuse detection, the IDS scrutinize the incorporated information and then make comparison with the large databases of attack signatures. Basically, it searches for a specific attack that already took place. Detection software of a virus detection system checks the database of attack signatures and compares packets against them. In anomaly detection, the system administrator creates the baseline, or normal, networks traffic load, protocol, and typical packet size. The anomaly detector checks the network segments to compare their state to the normal baseline and search for the anomalies.

Network-based vs. Host-based systems

Network-based system, in this Intrusion detection system investigates the individual packets passing through the network. All malicious packets which a firewall is unable to detect are filtered through it and ensure network security. A host-based system eyes activities on the individuals computer or host.

Passive system vs. reactive system

In a passive system, network security is done by checking the potential security breach, logging the information and sending out alerts. In a reactive system, suspicious activities are detected by logging off a user or by reprogramming the firewall and stops network traffic from the suspected source.

Firewall security and IDS are related to the cyber security. The difference lies in the methods of providing security. The firewall searches for intrusion so they can be stopped from happening and maintains the privacy by limiting the access between two networks and avoiding having to warn an attack from inside the network. On the contrary, the intrusion detection software reviews the suspect after the spread of warning.

Article Source: http://www.informationbible.com/article-intrusion-detection-system-essential-tool-for-computer-security-145032.html

Add New Comment

• Olm to mbox freeware helps making right selection

  The article underlines the advantages that users acquire by first selecting OLM to MBOX free edition that ultimately helps in making apt tool selection. More >>

• Telecommunications for business

  Long Beach is a booming city where an affluent lifestyle comes about from an embracing of the latest technology especially in the business arena. Long Beach businesses and consumers have discovered how technology can benefit them instead of vice versa. More >>

• Find the best online search engine marketing business

  Rapid growth of business on today’s market field. Online marketing in Dubai plays the main role & comes first in the line. SEO is the subset of search engine marketing. This marketing strategy is increased & visible by no of visitor’s search engine in resulting page which is helpful. More >>

• Why does offshore asp dotnet developer demand continue to rise

  ASP.NET is a server side scripting technology that utilizes the windows web server to host ASP.NET sites or applications. It is powerful as it helps to create websites which can automatically update and localize its content easily. More >>

• Tabulating the stunning php development benefits

  As years pass by developments in the information technology world, new trendy, agile programming languages keep flourishing. Today's growing trend makes your business online and stay updated with the latest information. More >>

• Ways to improve your network security

  When we talk about network security, it actually means covers all essential issues related to the security of your computer and the internet connection you are using so that you can be redeemed from unauthentic interference to your connection. More >>

• Intrusion detection system essential tool for computer security

  Worried about intruders attacking your network enterprise? Do not surround yourself with clouds of tensions, but rather seek for intrusion detection software (IDS). Electronic attacks can hamper the operation of Information systems and networks. More >>

• Computer virus protection measures to take for your pc

  Computer safety has been a major concern of every computer user nowadays, especially with the onslaught of numerous dreadful viruses. Computer virus protection has become a must for all PC users. More >>

• Benefits of downloading free antivirus for windows xp

  For the tech savvy generation searches and trades through the virtual world is essential to keep a security in mind during these activities by guarding your computer from hackers that try to steal information. More >>

• Basic principles of computer security

  Antivirus software protects your private information, secures data integrity, saves computer from viruses and helps prevent identity theft; therefore, it is very essential to install antivirus software for your PCs virus protection. More >>