Make Redhat/centos/fedora Update source

Command: Wget-r-p-np-k http://xxx.edu.cn

-R means that the recursive download, will download all the links, but note that, do not use this parameter alone, because if you want to download the site also has other site links, Wget will also be the other sites to download, so to add-np This parameter, means that do not download links to other sites.

-NP indicates that links to other sites are not downloaded.

-K means to modify the links in the downloaded Web pages to local links

-P gets all the elements needed to display the page, more than a slice or something

If some sites prohibit crawlers, add the-e robots=off command.

CentOS Update Source

Https://wiki.centos.org/Download

https://www.centos.org/download/mirrors/

Common sources of CentOS in the country:

http://mirrors.aliyun.com/centos/

http://mirrors.163.com/centos/

http://mirrors.sohu.com/centos/

http:://mirrors.shlug.org/centos/

http://mirrors.ta139.com/centos/

http://centos.ustc.edu.cn/centos/

http://mirror.centos.net.cn/

Make Redhat/centos/fedora Update source