ubuntu添加账号
useradd -d /home/test -m -s /bin/bash test
vim /etc/sudoers
test ALL=(ALL) NOPASSWD: ALL
查看所有用户的crontab
for u in `cat /etc/passwd | cut -d":" -f1`;do crontab -l -u $u;done
ubuntu ssh key登陆
ll ../.ssh/ -d #700权限
drwx------ .ssh//
ll authorized_keys #600权限
-rw------- authorized_keys
ssh 连接提示 Permission denied (publickey) 怎么破?
cat /etc/ssh/sshd_config
AllowUsers *@IP