Intrusion Detection
2010
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Intrusion Detection
Network Intrusion Detection Systems to Detect Intruders at the Earliest
Networking intrusion detection systems are highly essential to detect malicious activities taking place in network environments. Such malicious activities may include hacking, attempts by unauthorized users to hack into your computer by examining network traffic, denial of service attacks or port scans.
How Network Intrusion Detection Systems (NIDS) Work
A network intrusion detection system is a technical device that checks on various activities on your network. For instance, you can supervise the in-and-out flow of data and monitor network traffic by installing NIDSs in your network. There are specific points in the network where NIDSs are installed to check the traffic to and from all the other computers attached in the network.
NIDSs also filter every single incoming packet to detect it for signatures, rules or any suspicious patterns. Suppose you observe numerous TCP connection sending requests to many different ports. Then you can expect that an unauthorized person is trying to conduct a port scan on few or all the computer in your network. Besides incoming network traffic, NIDS can detect any intrusions taking place from outgoing traffic as well. If an attack has been launched from inside of your network segment, it will not be taken as incoming traffic.
How Network Intrusion Detection Systems (NIDS) Act as Packet Sniffers
Network intrusion detection systems usually correlate with other systems and security tools. This means that they are capable of updating blacklist of some firewalls with the IP addresses that were used by attackers. A NIDS does not impede the network traffic at all, unlike a firewall or packet filter. Simply put, NIDSs act as packet sniffers and perform an analysis of the captured packets.
Whenever a successful or unsuccessful attack takes place in an environment secured with NIDS, you can generate a security alert. You can collect necessary information that you use as important evidence, in case legal action is required. This also helps you to handle such attacks in the future.
About the Author
Network Critical relieves its clients from the worries of intrusion into their networks or any data theft taking place. All our network tap products are based on cutting edge technology to ensure high performance in the long run.
intrusion Detection system?
I would like to do a project on Intrusion Detection System for my final year(B.E CSE) . Are there any specific libraries for building a signatures based Intrusion detection system? if no what are the requirements to create a intrusion detection system?
I would also like to know if snort can be used as a library for final year project?
I have no idea what you're talking about.
Security 503: Intrusion Detection In-Depth
