svn change passwd svn change password
after svn password changed, delete the folder $HOME/.subversion
run svn checkout -username user svn://server/repo, input new password
run git svn
linux Namespace https://lwn.net/Articles/531114/ https://coolshell.cn/articles/17010.html Linux Namespace是Linux提供的一种内核级别环境隔离的方法。 chroot内部的文件系统无法访问外部的内容。Linux Names
systemctl start networking.service networking.service raises or downs the network interfaces configured in /etc/network/interfaces, that is, those network interfaces which are not managed by NetworkManager. If you look into /lib/systemd/system/networking.service you will see that all it does is ifup or ifdown depending on whether it is to be started or stopped.
https://askubuntu.com/questions/850339/what-is-the-networking-service