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1、创建用户
useradd web_user -m -d /home/mall -g mall -s /bin/bash useradd app_user -m -d
/home/app_user -s /bin/bashpasswd web_user
2、用户归为root组
usermod -aG root web_user
3、用户sodu su无密码切换到root权限
#增加sudoers文件写权限 chmod +w /etc/sudoers vi /etc/sudoers #web_user ALL=(ALL) ALL
#需要密码 web_user ALL=(ALL) NOPASSWD: ALL #无需密码 wheel ALL=(ALL) NOPASSWD: ALL #无需密码
#取消sudoers文件写权限 chmod -w /etc/sudoers
4、sudo su - 切换失败
错误:sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
执行以下命名:
chown root:root /usr/bin/sudo chmod 4755 /usr/bin/sudo