Ubuntu18.04换阿里镜像源

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首先查看主机系统版本号

root@ubuntu-server:~# cat /etc/issue
Ubuntu 18.04.2 LTS \n \l

备份系统自带的镜像源

root@ubuntu-server:~# root@ubuntu-server:~# cp /etc/apt/sources.list /etc/apt/sources.list.bak

编辑配置文件

行首：d+G全部删除
i插入 shift+insert粘贴如下内容：

########   Ubuntu18.04 阿里云镜像源   ###############
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
########   阿里云镜像源 END  ###############

感受畅快如飞的网速吧~

root@ubuntu-server:~# apt-get update
Fetched 15.5 MB in 8s (1,871 kB/s)                                                     
Reading package lists... Done

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