linux三大版本更換軟件源
前排提示，有的源可能已經失效，如果發現請留言或自行尋找其他源。
1.centos
mv /etc/yum.repos.d/CentOS-Base.repo [--path]
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache
2.Ubuntu
備份原有軟件源sudo cp /etc/apt/sources.list <路徑>
sudo vi /etc/apt/sources.list
修改為以下:
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
執行更新源sudo apt update
如果有其他錯誤，可以執行
sudo rm -rf /var/lib/dpkg/info
sudo mkdir /var/lib/dpkg/info
3.RedHat(紅帽)更換yum源。
鑒於紅帽的軟件源需要注冊，可以更換為centos的yum。
刪除自帶的yum
rpm -aq | grep yum | xargs rpm -e –nodeps
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-urlgrabber-3.9.1-11.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-41.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-81.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-updateonboot-1.1.30-41.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-utils-1.1.30-41.el6.noarch.rpm
rpm -Uvh python-urlgrabber-3.9.1-11.el6.noarch.rpm
rpm -ivh yum-*
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
vi CentOS6-Base-163.repo
:%s/$releasever/6/g
保存退出后
yum clean all
yum makecache
驗證
yum install telnet