Firewall in ISPmanager 6: Managing iptables Rules

ISPmanager 6 · 19.04.2026
Firewall in ISPmanager 6: Managing iptables Rules

Tools → Firewall → enable firewall. Fail2ban automatically blocks IPs after failed login attempts.

⚠️ Before enabling the firewall, ensure ports 22 and 1500 are allowed, or you'll lose server access.
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