The first, network-based intrusion detection systems (NIDS), live on the network. Specifically, ... In the best of all possible worlds, you’ll use both a well-managed IDS and IPS.

Like firewalls, IDS/IPS tools can generate false positives, or warning patterns that don't really show an attack. An IDS comes with a database of dangerous signatures built in.

We have a SonicWall firewall and would like to add intrusion detection to the network. The principal of the company is asking about options that sit between the firewall and network. The SonicWall ...

The next issue becomes selection of the appropriate IDS technology, which basically come in two flavours: network intrusion detection (NIDS or IDS) and host intrusion detection (HIDS).

At the highest level, there are two types of intrusion detection systems: network-based and host-based. “Network-based intrusion detection systems monitor activity within network traffic for one or ...

Compare that to firewalls that block out known malware and intrusion prevention system (IPS) technology, which as the name describes, also blocks malicious traffic.. Although an IDS doesn’t stop ...

Unlike firewalls, most intrusion detection systems require considerable technical smarts to set up and configure properly. But the biggest management problem is the alarms.

Snort is an open-source network intrusion prevention and detection system (IDS/IPS) developed by Sourcefire, which combines the benefits of signature, protocol, and anomaly-based inspection.