ubuntu 14.04 开启root 用户

http://blog.csdn.net/lichangzai/article/details/39379153

1. 修改 root 密码

sudo passwd root

2. 以其他账户登录，通过 sudo nano 修改 /etc/ssh/sshd_config :

xxx@ubuntu14:~$ su - root

Password:

root@ubuntu14:~# vi /etc/ssh/sshd_config

3. 注释掉 #PermitRootLogin without-password，添加 PermitRootLogin ye

# Authentication:

LoginGraceTime 120

#PermitRootLogin without-password

PermitRootLogin yes

StrictModes yes

4. 重启 ssh  服务

root@ubuntu14:~# sudo service ssh restart

ssh stop/waiting

ssh start/running, process 1499

root@ubuntu14:~#