Debian Normal user Add sudo permissions

from:http://chenpeng.info/html/964

1. Install sudo
# apt-get Install sudo
2. Modify the/etc/sudoers file property to be writable
# chmod +w/etc/sudoers
3, edit/etc/sudoers, add as follows
# vim/etc/sudoers
Root all= (All) all
User all= (All) All users require a password when executing sudo.
#user All=nopasswd:all user does not require a password when executing sudo.
#user all=nopasswd:/etc/network/interfaces user performs only sudo execution/etc/network/interfaces, no password is required for execution.
4. Modify the/etc/sudoers file property to read-only
# chmod-w/etc/sudoers
5, use the user login system, execute the following command to start/etc/network/interfaces
$ sudo/etc/network/interfaces Restart