centos 7 docker 启动了一个web服务 但是启动时 报

WARNING: IPv4 forwarding is disabled. Networking will not work.

网上查询了下 需要做如下配置

解决办法：
# vi /etc/sysctl.conf
或者
# vi /usr/lib/sysctl.d/00-system.conf
添加如下代码：
    net.ipv4.ip_forward=1
 
重启network服务
# systemctl restart network
 
查看是否修改成功
# sysctl net.ipv4.ip_forward
如果返回为“net.ipv4.ip_forward = 1”则表示成功了
 
https://blog.csdn.net/u014062332/article/details/52911405

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