Its main function is to prevent unauthorized access and limit attacks. Firewalls work at the network level and usually examine incoming or outgoing traffic, filtering traffic based on specific protocols, ports, or IP addresses.
IDS (Intrusion Detection System)
IDS is a security mechanism that aims to identify potential security threats by monitoring abnormal activities on the network. IDS analyzes network traffic and detects certain attack signatures or anomalies. However, IDS does not prevent attacks, it only detects threats and issues alerts. These alerts are forwarded to security teams or administrators so that necessary actions can be taken.
IPS (Intrusion Prevention System)
IPS is a security mechanism that detects and blocks malicious activity on the network. It can be thought of as an advanced firewall. IPS monitors network traffic in real time, detects abnormal activity, and intervenes quickly. If a threat or attack is detected, IPS can automatically take the necessary steps to block the attack. These steps could be blocking traffic, blocking the attacker IP address, or detecting a specific attack signature.
Firewall
A firewall is a security device or software used to increase network security.
IPS (Intrusion Prevention System)
IPS is a security mechanism that detects and blocks malicious activities on the network.
IDS (Intrusion Detection System)
IDS is a security mechanism that aims to identify potential security threats by monitoring abnormal activities on the network.