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Network Intrusion Prevention Systems

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Network Intrusion Prevention Systems (Network Intrusion Detection, Computer Security Appliances Connecticut)

An intrusion prevention system (IPS) is a computer security device that monitors network activities for malicious or unwanted behavior and can react, in real-time, to block or prevent those activities. Network-based IPS, for example, will operate in-line to monitor all network traffic for malicious code or attacks. When an attack is detected, it can drop the offending packets while still allowing all other traffic to pass. Intrusion prevention technology is considered to be an extension of intrusion detection (IDS) technology

There are different types of Network Intrusion Protection Solutions, these include:
1. Host Based: A host based IPS (HIPS) is one where the intrusion-prevention application is resident on that specific IP address, usually on a single computer.
2. Network based: A network based IPS is one where the IPS application/hardware and any actions taken to prevent an intrusion on a specific network host(s)is done from a host with another IP address on the network (This could be on a front-end firewall appliance.)
Network intrusion prevention systems (NIPS) are purpose-built hardware/software platforms, often termed appliances that are designed to analyze, detect, and report on security related events. NIPS are designed to inspect traffic and based on their configuration or security policy, they can drop malicious traffic.
3. A content based IPS (CBIPS) inspects the content of network packets for unique sequences, called signatures, to detect and hopefully prevent known types of attack such as worm infections and hacks.

Protocol Analysis: A key development in IDS/IPS technologies was the use of protocol analyzers to detect malicious behavior. Protocol analyzers can natively decode application-layer network protocols, like HTTP or FTP. Once the protocols are fully decoded, the IPS analysis engine can evaluate different parts of the protocol for anomalous behavior or exploits.
Rate Based IPSs: Rate based IPS (RBIPS) are primarily intended to prevent denial of service and Distributed Denial of Service (DDoS) attacks. They work by monitoring and learning normal network behaviors. Through real-time traffic monitoring and comparison with stored statistics, RBIPS can identify abnormal rates for certain types of traffic e.g. TCP, UDP or ARP packets, connections per second, packets per connection, packets to specific ports etc. Attacks are detected when thresholds are exceeded. The thresholds are dynamically adjusted based on time of day, day of the week, etc., drawing on stored traffic statistics.
Once an attack is detected, various prevention techniques may be used such as rate-limiting specific attack-related traffic types, source or connection tracking, and source-address, port or protocol filtering (black-listing) or validation (white-listing).
Independent Network Consultants – Leading Providers of high quality Network Intrusion Prevention Solutions – Connecticut

Since its inception Independent Network Consultants LLC has been providing our customers with quality hardware and software solutions at affordable prices. At INC LLC, we thoroughly understand the need for robust security solutions in any IT enterprise, large or small. Our products are selected and installed to insure your information is safeguarded from intruders and those not authorized to access it. In addition to Network Intrusion Prevention Solutions, we provide other IT solutions including Server & Network Planning, Implementation & Support, Microsoft Small Business Server Installation & Support, Microsoft Exchange Server Installation & Support, Remote Access Solutions, Storage & Back-up Solutions, Consulting Services, and LAN/WAN Infrastructure design.

If you are in need of Network Intrusion Prevention Solutions in Connecticut, contact INC LLC today!