docker

https://blog.csdn.net/qq_36148847/article/details/79273591
docker换源阿里云

sudo gedit /etc/docker/daemon.json
{
"registry-mirrors": ["https://"]
}
systemctl restart docker.service

查看发行版

root@339e932ae4a9:/# cat /etc/issue
Debian GNU/Linux 9 \n \l

source.list 换源

在这里插入代码片

https://blog.csdn.net/jacka654321/article/details/82468854