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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 is in the works!
Find a preview here ...
 

2025-03-10:
Watcher V1.4-Pre released
The pre-production release of Watcher 1.4 is
now available here

2023-12-03:
Watcher V1.4-RC2 released
... available here
2023-09-28:
Watcher V1.4-RC1 released
... available here
 
 
Watcher-II (V2) trials started!

On a virtual machine running with Alma-Linux 9.x I made first transition attempts to promote xtables/iptables to nftables. The results look good so far.

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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