An intrusion Detection System, more commonly IDS, is essentially a device or application that gets used to survey the systems for any insecure activity. Once checked, a report gets generated, which is then sent to the administration by the device. In other event management systems, the information gets collected and stored inside the device.
Intrusion Alarm Systems can be of a few different kinds, namely Active, Passive, Host, and Network. In simpler terms, IDS helps monitor network traffic, keeping any kind of malicious activity at bay. It also scans the system or the network to check for any kind of breach and instantly informs the authorities concerned.
What Are The Two Classifications Of IDS Systems?
There are essentially two types of Intrusion Detection Systems, namely HIDS, or Host Intrusion Detection systems, and NIDS, short for Network Intrusion Detection systems. Further in this blog, you will find both of them explained in more detail.
- Host Intrusion Detection System
HIDS systems can run on different network devices and hosts. A HIDS system keeps track of only incoming and outgoing network packets. If there is any malicious or unusual behaviour with the same, it will instantly alert the administrator.
It is an excellent way of finding what is causing that behaviour as it takes a picture of the present system and allows you to compare it with a previously taken one. If any kind of file has been removed or altered, it will forward an intrusion detection alarm to an administrator for review. These types of systems are mainly used on mission-critical systems that do not alter the configuration.
- Network Intrusion Detection System
NIDS systems are more specific to a particular system and only set at a precise point to monitor traffic from all of the network devices. It essentially observes the whole subnet and communicates with the passing traffic to learn about attacks. Once an attack or any kind of unusual activity gets detected, the administrator gets notified. You will find NIDS systems on firewall subnets allowing you to evaluate if someone is trying to break in.
How Are NID Systems Important?
It is a known fact that no firewall is totally secure. Attackers are often finding new ways and techniques to breach such networks and bypass their defences.
The majority of attacks use malware or social engineering to get the user’s sensitive information, further allowing them information and network access. This is when using an intruder detection system for home becomes essential. It helps detect and quickly respond to such attacks to avoid any kind of mishap or information compromise.
The main motive of such applications is to inform IT professionals about any network invasion or potential attack. Both the outbound and inbound traffic on the network, along with the data transfer between devices, are controlled by the Network Intrusion Detection System.
Things To Keep In Mind
While a smart home intrusion detection system is quite crucial for security, there are some important points you need to understand to use them in full capacity. Firstly, it is imperative that the IT professionals you hire have the required knowledge and expertise to use the application properly.
There are quite a few choices they have to make in order to take the right actions. Understanding the network notified IDS in relevance to the traffic evaluation and monitoring for unusual activities or potential threats is vital.
One thing that you IT professionals should absolutely know is false positive readings. While, in most cases, the threat detection is accurate, there can be some instances of false positives. A false positive is when the IDS flags any regular traffic as malicious activity. This is why the program should be calibrated well to ignore approved or legal traffic intrusion detection.
With the information present in this blog, you know what IDS is and how important it can be. Rest assured, with a trusted service, you can counter several threats to your network.