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...as IP 216.251.XXX.XX1 Server 2 has IP 216.251.XXX.XX2 PC1 has IP 216.251.XXX.XX3 PC2 has IP 192.168.XXX.1 PC3 has IP 192.168.XXX.2 How do I configure shorewall in SERVER 2 to block to/from the Internet Port 22 (ssh), but do not block port 22 from PC1 and PC2 and PC3 ??? Currently I have shorewall confufured like "quick-guide one interface example", with some open ports in rules script and some blacklists. Thks for your help. Best Regards Jorge