Transaction Replay (Global)
High-quality technical overview of Transaction Replay in the context of blockchain security.
Detection Methods: 1. Signature-based. 2. Anomaly-based (statistical/AI). 3. Policy-based. Deployment: Inline (IPS) vs. Passive (IDS).
graph LR
Center["Transaction Replay (Global)"]:::main
Rel_transaction_simulation["transaction-simulation"]:::related -.-> Center
click Rel_transaction_simulation "/terms/transaction-simulation"
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🧒 5 yaşındaki gibi açıkla
Imagine you have a clubhouse. A [firewall](/tr/terms/firewall) is the lock on the door. An IDS is a motion sensor inside the room. If someone sneaks in through a window or has a stolen key, the motion sensor (IDS) will trip an alarm and let you know someone is there who shouldn't be.
🤓 Expert Deep Dive
Technically, IDS operates either as NIDS (Network-based, monitoring traffic on a wire) or HIDS (Host-based, monitoring system calls and logs on a server). 'Signature-based IDS' is reliable but fails against 'Zero-day exploits'. 'Anomaly-based IDS' uses machine learning to establish a 'Baseline' of normal activity and flags deviations, but it is notorious for 'False Positives' (flagging legitimate heavy traffic as an attack). Modern security relies on 'Next-Generation Firewalls' that integrate IDS/IPS functionality with 'Deep Packet Inspection' (DPI) to look inside encrypted traffic (with proper certificates) and stop threats before they reach the host.