wifi
无法上网/etc/sysctl.conf
添加net.ipv4.ip_forward = 1
,起因就是转发没启用
docker
容器无法联网/etc/sysctl.conf
添加如下几行,让网桥流量经过iptables
,可以用这个检测:docker run --rm busybox ping baidu.com
net.bridge.bridge-nf-call-ip6tables=1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-arptables=1