linux关闭ipv6

https://bbs.deepin.org/forum.php?mod=viewthread&tid=188959&highlight=qq

https://www.cnblogs.com/yaocai/p/7906330.html

用wine5.0的日志输出发现取图片的时候会有域名解析失败，原来是IPV6打开了导致的。关闭ipv6，重新打开QQ，取图片转圈问题解决

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=1