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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                **iptables防火墻** ~~~ 1. `iptables -L`:列出當前的 iptables 規則列表; 2. `iptables -A`:向 iptables 規則鏈中添加一條新規則; 3. `iptables -D`:從 iptables 規則鏈中刪除一條規則; 4. `iptables -I`:在 iptables 規則鏈中插入一條新規則; 5. `iptables -P`:設置 iptables 規則鏈的默認策略; 6. `iptables -N`:創建一個新的用戶自定義的 iptables 規則鏈; 7. `iptables -F`:清空 iptables 規則鏈中所有的規則; 8. `iptables -Z`:將 iptables 規則鏈中所有計數器清零; 9. `iptables -X`:刪除用戶自定義的 iptables 規則鏈 ~~~ ## 常用技巧設置防火墻: **重啟后不丟失**,需要將命令添加入/etc/rc.local里面,開機自動執行 ``` chmod +x /etc/rc.d/rc.local vi /etc/rc.d/rc.local 添加以下命令 /etc/fw.sh ``` 1、基本操作 \# 查看防火墻狀態 `service iptables status` \# 停止防火墻 `service iptables stop` \# 啟動防火墻 `service iptables start` \# 重啟防火墻 `service iptables restart` \# 永久關閉防火墻 `chkconfig iptables off` \# 永久關閉后重啟 `chkconfig iptables?on` 2、開啟80端口 `vim /etc/sysconfig/iptables` \# 加入如下代碼 `-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT` 保存退出后重啟防火墻 `service iptables restart`
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