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              25個常用的Linux iptables規則

              一些常用的 Linux iptables 規則,請根據自己的具體需要再修改。

              5個常用的Linux

              # 1. 刪除所有現有規則

              5個常用的Linux

              # 2. 設置默認的 chain 策略

              5個常用的Linux

              # 3. 阻止某個特定的 IP 地址

              5個常用的Linux

              # 4. 允許全部進來的(incoming)SSH

              5個常用的Linux

              # 5. 只允許某個特定網絡進來的 SSH

              5個常用的Linux

              # 6. 允許進來的(incoming)HTTP

              5個常用的Linux

              # 7. 多端口(允許進來的 SSH、HTTP 和 HTTPS)

              5個常用的Linux

              # 8. 允許出去的(outgoing)SSH

              5個常用的Linux

              # 9. 允許外出的(outgoing)SSH,但僅訪問某個特定的網絡

              5個常用的Linux

              # 10. 允許外出的(outgoing) HTTPS

              5個常用的Linux

              # 11. 對進來的 HTTPS 流量做負載均衡

              5個常用的Linux

              # 12. 從內部向外部 Ping

              5個常用的Linux

              # 13. 從外部向內部 Ping

              5個常用的Linux

              # 14. 允許環回(loopback)訪問

              5個常用的Linux

              # 15. 允許 packets 從內網訪問外網

              5個常用的Linux

              # 16. 允許外出的 DNS

              5個常用的Linux

              # 17. 允許 NIS 連接

              5個常用的Linux

              # 18. 允許某個特定網絡 rsync 進入本機

              5個常用的Linux

              # 19. 僅允許來自某個特定網絡的 MySQL 的鏈接

              5個常用的Linux

              # 20. 允許 Sendmail 或 Postfix

              5個常用的Linux

              # 21. 允許 IMAP 和 IMAPS

              5個常用的Linux

              # 22. 允許 POP3 和 POP3S

              5個常用的Linux

              # 23. 防止 DoS 攻擊

              5個常用的Linux

              # 24. 設置 422 端口轉發到 22 端口

              5個常用的Linux

              # 25. 為丟棄的包做日志(Log)

              5個常用的Linux

              作者:數據庫開發

              來源:http://os.51cto.com/art/201709/551245.htm

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