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+---
+title: "Ipv6 笔记"
+date: 2019-10-29T21:07:06+08:00
+lastmod: 2019-10-29T21:07:06+08:00
+keywords: []
+tags: ["ipv6", "centos"]
+categories: ["network"]
+---
+
+# CentOS7 禁用 ipv6
+## 方法1
+- 编辑 /etc/sysctl.conf，增加如下内容
+    ```
+    net.ipv6.conf.all.disable_ipv6 =1
+    net.ipv6.conf.default.disable_ipv6 =1
+    ```
+- 如果你想要为特定的网卡禁止IPv6，比如，对于enp0s3，添加下面的行
+    ```
+    net.ipv6.conf.enp0s3.disable_ipv6 =1
+    ```
+- 生效
+    ```bash
+    sysctl -p
+    ```
+
+## 方法2
+- 执行下面命令
+    ```bash
+    echo 1>/proc/sys/net/ipv6/conf/all/disable_ipv6
+    echo 1>/proc/sys/net/ipv6/conf/default/disable_ipv6
+    ```
+