ubuntu添加账号
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//
llauthorized_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
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