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Login to unlockFail2ban
Created: 2025-11-30
Updated: 2025-11-30
Comprehensive Fail2ban configuration for intrusion prevention including filters, jails, and actions to protect SSH, web, and mail services
Architecture
Text
┌─────────────┐
│ Log Files │ (auth.log, nginx/error.log, mail.log, etc.)
└──────┬──────┘
│
├──► Fail2ban reads logs
│
┌──────▼──────────┐
│ FILTERS │ (regex patterns to detect attacks)
│ /etc/fail2ban/ │
│ filter.d/ │
└──────┬──────────┘
│
├──► Matches patterns (failed login, bot, etc.)
│
┌──────▼──────────┐
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