ubuntu18(修改root密碼、設置root遠程登錄、換源、設置靜態ip(這裏是18版本))

• 修改root密碼

sudo passwd root

• 設置root能夠遠程登陸

 默認不帶ssh，因此須要安裝一下ssh

sudo apt install openssh-server

 容許root用戶登陸，編輯sshd_config

sudo vim /etc/ssh/sshd_config
找到# Authentication項下的
PermitRootLogin prohibit-password改爲PermitRootLogin yes

重啓ssh搞定

sudo systemctl restart sshd

• 更換國內源

備份

sudo cp /etc/apt/sources.list /etc/apt/sources_init.list

編輯/etc/apt/sources.list 更換阿里源

阿里源
deb http://mirrors.aliyun.com/ubuntu/ xenial main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main

deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main

deb http://mirrors.aliyun.com/ubuntu/ xenial universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates universe

deb http://mirrors.aliyun.com/ubuntu/ xenial-security main
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main
deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security universe

更新修復包

apt-get -f install
apt-get upgrade

 根據網卡編號 編輯/etc/netplan/50-cloud-init.yaml 設置靜態ip 我這裏是ens33

network:
    ethernets:
        ens33:
            addresses: [192.168.3.244/24, ]
            dhcp4: no
            dhcp6: no
            gateway4:  192.168.3.1
            nameservers:
                addresses: [8.8.8.8, 9.9.9.9]
    version: 2

 當即生效

netplan apply