A Guide To Intrusion Prevention System In 6 Simple Points

Ajay Ohri


An Intrusion Prevention System (IPS) is a technology for network security/threat prevention that analyses network traffic flows to identify vulnerability exploits and prevent them. An intrusion prevention system (IPS) is a method used to sniff out malicious behavior occurring over a network and/or system. It is also possible to refer to intrusion prevention systems as intrusion detection and prevention systems (IDPs).

Intrusion prevention systems operate by locating malicious activity, documenting and reporting malicious activity information, and attempting to block/stop the activity from occurring. In this article we will learn about, What is the intrusion prevention system, types of intrusion prevention system, the best intrusion prevention system, how it works, and top intrusion detection systems.

  1. What is an intrusion prevention system?
  2. How IPS Works
  3. Types of intrusion prevention system
  4. Advantages of Intrusion prevention system
  5. Choosing the Right Prevention Intrusion Device
  6. Why should Systems for Intrusion Prevention be used?

1. What is an intrusion prevention system?

Intrusion prevention system definition: An intrusion prevention system(IPS) is a type of protection for the network that works to detect and prevent threats detected. Continuously monitor the network for intrusion prevention mechanisms, check for potential malicious events, and collect information about them. The intrusion prevention system reports these incidents to system administrators and takes proactive measures to deter potential attacks, such as closing access points and configuring firewalls. intrusion prevention system tools may also be used to detect corporate security policy problems, deterring staff, and network visitors from breaking the rules found in these policies.

 As both IPS and IDS operate network traffic and device operations for malicious operation, intrusion prevention systems are considered to be an improvement in Intrusion Detection Systems (IDS). Usually, IPS documents information related to events witnessed, notifies security administrators of critical events observed, and reports. By trying to prevent it from succeeding, several IPS may also respond to a detected threat. They use different response strategies that include the IPS stopping the attack itself, altering the security environment, or altering the content of the attack.

2. How IPS Works

Intrusion prevention systems operate by scanning all traffic on the network. An IPS are intended to avoid a variety of different risks, including:

  • Assault by Denial of Service (DoS)
  • DDoS assault (Distributed Denial of Service)
  • Diverse types of vulnerabilities
  • The Worms
  • From viruses

Real-time packet inspection is carried out by the Intrusion prevention systems, which deeply inspects any packet that passes through the network. The Intrusion prevention systems will perform one of the following acts:

  • Terminate the abused TCP session and unethically block the offending source IP address or user account from accessing any application, target hosts, or other network properties.
  • To stop a similar attack from happening in the future, reprogram or reconfigure the firewall.
  • Delete or replace any malicious content that after an attack, persists on the network. This is accomplished by repackaging payloads, deleting header details, and removing from file or email servers any infected attachments.

3. Types of the intrusion prevention system

Three types of intrusion prevention systems occur frequently. The following are these types:

  • Signature-Based – Predefined signatures of well-known network threats are used for the signature-based approach. The device takes appropriate action when an attack is launched that matches one of these signatures or patterns.
  • Anomaly-Based – The anomaly-based approach tracks any irregular or abnormal network activity. The device blocks access to the target host instantly if an anomaly is found.
  • Policy-Based – This strategy allows administrators to configure security policies according to network infrastructure and organizational security policies. A warning is activated and sent to the system administrators when an incident occurs that breaches a security policy.

4. Advantages of Intrusion prevention system

The benefits of protection schemes against intrusion include the following:

  • Reducing the risk of security incidents
  • Providing complex security for threats
  • Notifying administrators automatically when suspicious behavior is found;
  • Prevention of threats, such as zero-day attacks, DoS attacks, DDoS attacks, and attempted brute-force assaults
  • Reduction of network maintenance for IT personnel
  • Allowing or refusing a network of unique incoming traffic.

5. Choosing the Right Prevention Intrusion Device

There is a very large product offering for the intrusion prevention system market. This makes it a very difficult job to select the right intrusion prevention method. It is important to set a budget, identify the criteria that your new system will need to meet, and do your research on the various intrusion prevention systems on the market to decrease the difficulty of selecting the right intrusion prevention system for you.

Bear in mind that it is a standalone technology and not a comprehensive security solution to an intrusion prevention scheme. Although an IPS can be a valuable network malicious activity detection technology, an effective security policy can incorporate additional data protection technologies and tools, endpoint security, incident response, and more.

6. Why should Systems for Intrusion Prevention be used?

Network security threats, such as brute force attacks, Denial of Service (DoS) attacks, and vulnerability exploits, can be detected or avoided by IPS technologies. In a software system, a vulnerability is a weakness and an exploit is an attack that leverages that vulnerability in order to gain control of a system. Before the safety fix is applied when an exploit is released, there is also a window of opportunity for attackers to exploit the vulnerability.

In these situations, an Intrusion Prevention Framework can be used to block these attacks quickly. They can also be used to enforce the use of secure protocols and refuse to use unsafe protocols, such as previous versions of SSL or weak cipher protocols because intrusion prevention device technologies are used to handle packet flows.


To ensure reliable and reliable information exchange between different organizations, modern networked business environments require a high level of security. An intrusion prevention framework works in line with conventional technologies as an adaptable defense technology for system security. The capacity, without requiring IT intervention, to prevent intrusions by automated action means lower costs and greater consistency inefficiency. Cyber attacks can only get more complex, so it is vital that security technologies, along with their risks, adapt.

Intrusion prevention technologies are extending the capabilities of intrusion detection (IDS) systems that serve the fundamental function of network and system traffic monitoring. What makes intrusion prevention systems more advanced than intrusion detection systems is that IPS is placed in-line and has the ability to avoid or block the malicious behavior that occurs (directly in the direction in which the source and destination communicate).

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