iptables配置

iptables是基于内核的防火墙，它包含了raw、mangle、nat和filter四个规则表。这些规则表中的规则配置后会立即生效，无需重启服务。可以使用iptables命令来设置默认策略和显示规则的序号。例如，可以使用iptables -P INPUT DROP来设置输入链的默认策略为DROP，这在生产环境中设置网络型防火墙或主机型防火墙时是常见的做法。同时，也可以使用iptables命令来查看特定链的规则序号。\[1\]\[2\]
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- *1* [Linux下iptables防火墙配置](https://blog.csdn.net/asdfg___xiaobai/article/details/127651533)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* *3* [【iptables 防火墙设置】](https://blog.csdn.net/DiKL_Y/article/details/130730240)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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