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... the real-time intrusion detection & prevention system and superordinate firewall manager for Linux servers.

Watcher is 'donation ware' for a symbolic price and is available in the online shop as: "Watcher complete"

Watcher blocks malicious IP addresses that attack login, mail & WEB services on a server with DROPS in the firewall and tracks such attackers in an exclusive database (SQLite) to reload the firewall in seconds after start/reboot.

For details read the Watcher presentation page.

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