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 Watcher

... 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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Watcher-1.4/Prod available
As of May-2025 Watcher-1.4 is branded 'Production'
Currently, this is reflected by the '1.4-nightly' pool directory in the repository.
https://watcher.comserve-it-services.de/repo/Watcher-1.4-nightly/
Watcher-II (V2.0) is in the works!

Watcher-II will be the 'nft compliant' redition of Watcher-1.x (xtables/iptables & ipset)

The good news is that the 'firewalld' will be supported out-of-the-box, and a 'custom nft setup' just takes a few tweaks.
 
 
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