Ravi Sir's Cyber Security Cards › Comparison Cards
IDS vs IPS vs Firewall vs Honeypot – Why Each Exists
IDS vs IPS vs Firewall vs Honeypot – Why Each Exists Firewall : a gate. It allows or blocks traffic by rules. IDS (Intrusion Detection System): a CCTV camera. It alerts on attacks. IPS (Intrusion Prevention System): a gate that blocks attacks it sees. Honeypot : a fake system that only attackers wou
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What this card says
What each one is
Firewall: a gate. It allows or blocks traffic by rules.
IDS (Intrusion Detection System): a CCTV camera. It alerts on attacks.
IPS (Intrusion Prevention System): a gate that blocks attacks it sees.
Honeypot: a fake system that only attackers would touch.
Why use all four
Each one can miss something.
Layers mean one miss is not game over.
Example
A warehouse: the gate (firewall) checks entry, the camera (IDS) records, the guard (IPS) stops thieves.
A dummy storeroom (honeypot) catches anyone who opens it.
Key lesson
Firewalls block outside connections well. Malware already inside often connects outward.
So also watch outgoing traffic.
| Control | Job |
|---|---|
| Firewall | Allow / deny by policy (ports, IPs, state, app-ID on NGFW) |
| IPS | Detect and inline block (can drop; also can break traffic… |
| Honeypot | Fake service / fake net that nobody legitimate should touch |
Learn more in the lesson: 42.1 IDS vs IPS vs Firewall vs Honeypot – Why Each Exists