Ubuntu 新装配置

一、配置apt源

1、备份ubuntu

• mv /etc/apt/sources.list /etc/apt/sources.list.bak

2、配置清华源

• su root
  cat > /etc/apt/sources.list <<EOF
  deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
  deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
  deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
  deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
  deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
  deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
  deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
  deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
  deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
  deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
  EOF

3、更新源

• sudo apt-get update
  sudo apt-get upgrade -y

二、安装必要的软件

sudo apt-get install curl wget vim ssh -y

三、配置ssh

1、开启root远程登陆

vim /etc/ssh/sshd_config
PermitRootLogin yes #取消注释

2、重启ssh服务

systemctl enable ssh
systemctl start ssh

四、关闭ubuntu ssh连接时的欢迎信息

1、关闭这个主要是为了防止泄露一些系统信息

sudo sed -i ‘/pam_motd.so/ s/^/#/g‘ /etc/pam.d/sshd 

#就是为了注释下面两行，不让他们在现实开机信息
#session    optional     pam_motd.so  motd=/run/motd.dynamic
#session    optional     pam_motd.so noupdate

五、配置终端颜色

vim ~/.bashrc
export PS1="\[\033[01;31m\]\u\[\033[00m\]@\[\033[01;32m\]\h\[\033[00m\][\[\033[01;33m\]\t\[\033[00m\]]:\[\033[01;34m\]\w\[\033[00m\]\n$ "

#生效
source ~/.bashrc