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A Firewall is a network security device or software that monitors, filters, and controls incoming and outgoing traffic based on predefined security rules. It acts as a barrier between a trusted network and an untrusted one, preventing unauthorized access and blocking cyber threats.
An Intrusion Detection System (IDS) is a security tool that continuously analyzes network traffic to detect and alert administrators about suspicious activities, potential cyberattacks, or policy violations. Unlike a firewall, an IDS does not block traffic but helps identify security threats in real-time.
Firewall Tools:
Firewall Tools:
Cisco ASA (Adaptive Security Appliance):
A highly reliable enterprise-level firewall that provides stateful packet inspection, VPN support, and advanced threat protection to secure network traffic.pfSense:
An open-source firewall and router platform known for traffic filtering, intrusion prevention, and VPN support, widely used by small to medium-sized businesses.Palo Alto Networks Next-Generation Firewall (NGFW):
Offers deep packet inspection, application control, and real-time threat prevention to protect against advanced cyber threats.
Intrusion Detection System (IDS) Tools:
Intrusion Detection System (IDS) Tools:
Snort:
A widely used open-source IDS/IPS that performs real-time traffic analysis and packet logging to detect malicious activities and network intrusions.Suricata:
A high-performance IDS/IPS and network security monitoring tool that provides deep packet inspection, file extraction, and threat detection.Zeek (formerly Bro):
A network analysis framework with intrusion detection capabilities, traffic monitoring, and incident response functionalities.
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