設定 Fail2Ban 阻絕暴力破解 dovecot / sendmail / bind / openvpn / ssh / apache 方式 [蔡宗融個人網站]

在 /etc/fail2ban/jail.conf 內設定啟用 [named-refused-udp] vi /etc/fail2ban/jail.conf : [named-refused-udp] enabled = true filter = named-refused action = iptables-multiport[name=Named, port="domain,53", protocol=udp] sendmail-whois[name=Named, dest ...

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