FIREWALL AND IDS COMPLEMENT EACH OTHER AND NOT REPLACE

Firewall and IDS are related to network security but different in nature. Firewalls are particular devices that stop users from infiltrating your network. Network Intrusion Detection System performs passive monitoring while the ideas are copying and analyzing the network traffic where the traffic is continuing to reach its destination.

Traffic analysis can take a lot of computing power, and therefore the IDS can be overloaded by a large body of traffic. When IDS is overfilled, it cannot detect intrusion promptly. Thus it fails to protect the network adequately. This situation is called a fail-open, meaning that the network is open to intrusion when the IDS fails.

On the contrary, a Firewall actively performs filtering. All traffic must have to pass through the firewall and serve a relatively more straightforward and more efficient analysis. However, it can still be overloaded by large volumes of traffic. When this happens, it will disrupt the traffic and simply not let it go through. This phenomenon is called fail-close, meaning that when a Firewall fails, the central network is restricted to the outer network, and it is safe.

Generally, an IDS uses the comprehensive database to detect intrusion, which is placed between the edge and back end of the firewall to ensure the internal network security from the publicly accessible network. But an IDS is not a favorable replacement for a Firewall or a good antivirus program because it is considered a tool to use in conjunction with the security products like antivirus and firewall to increase security.

We can keep your data, your hardware and your employees safe from unwanted attacks with network firewall implementation services. Logic Finder’s firewall protection services were designed to deliver a complete turnkey solution. You can contact us for more info!