ubuntu下常用命令

切换源

sudo cp /etc/apt/sources.list /etc/apt/sources.list_bak
sudo sed -i "s@http://.*archive.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
sudo sed -i "s@http://.*security.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list

磁盘扩容

sudo lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

软件

sudo apt install vim tree nload wget curl ntp net-tools sysstat psmisc unzip unrar -y
sudo apt install openjdk-8-jdk maven git -y

时区

sudo timedatectl set-timezone Asia/Shanghai

vbox共享文件夹

sudo usermod -a -G vboxsf CURRENT_USER

然后重启

固定IP

新建netplan

sudo vim  /etc/netplan/10-ip-init.yaml

内容如下：

network:
  ethernets:
    eth0:
          dhcp4: no
          addresses: [192.168.0.100/24]
          gateway4: 192.168.0.1
          nameservers:
              addresses: [114.114.114.114,8.8.8.8]
  version: 2

执行变更

sudo netplan apply

docker

sudo apt install docker.io -y

防火墙

sudo apt install ufw -y
sudo ufw allow 22/tcp
sudo ufw delete allow 80/tcp
sudo ufw enable
sudo ufw verbose
sudo ufw status

允许root远程登陆

sudo vim /etc/ssh/sshd_config

将PermitRootLogin项改为 yes
修改root密码：sudo passwd
重启sshd服务

sudo service sshd restart