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

centos 7.6 docker启动 Elasticsearch报错
WARNING: IPv4 forwarding is disabled. Networking will not work.

解决办法：
[cc]vi /etc/sysctl.conf[/cc]
将
[cc]# Controls IP packet forwarding
net.ipv4.ip_forward = 0[/cc]
修改为
[cc]net.ipv4.ip_forward=1[/cc]

重启network服务
[cc]systemctl restart network[/cc]

查看是否修改成功
[cc]sysctl net.ipv4.ip_forward[/cc]

如果返回为“ net.ipv4.ip_forward = 1 ”则表示成功了

这时，重启容器即可。