问题描述：
sudo: error in /etc/sudo.conf, line 0 while loading plugin "sudoers_policy"
sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0
sudo: fatal error, unable to load plugins
解决方案:
chown root:root /usr/bin/sudo
chown root:root /usr/lib/sudo/sudoers.so
chown root:root /etc/sudoers
chown root:root /etc/sudoers.d
chown root:root /etc/sudoers.d/README
chmod 4755 /usr/bin/sudo
解决问题：
