来源网页，centos 官网：http://isoredirect.centos.org/centos/7/isos/x86_64/
In order to conserve the limited bandwidth available, ISO images are not downloadable from mirror.centos.org
The following mirrors in your region should have the ISO images available:
http://mirrors.huaweicloud.com/centos/7.8.2003/isos/x86_64/
http://ftp.sjtu.edu.cn/centos/7.8.2003/isos/x86_64/
http://mirrors.163.com/centos/7.8.2003/isos/x86_64/
http://mirrors.tuna.tsinghua.edu.cn/centos/7.8.2003/isos/x86_64/
http://mirrors.cqu.edu.cn/CentOS/7.8.2003/isos/x86_64/
http://mirrors.njupt.edu.cn/centos/7.8.2003/isos/x86_64/
http://mirrors.neusoft.edu.cn/centos/7.8.2003/isos/x86_64/
http://mirrors.aliyun.com/centos/7.8.2003/isos/x86_64/
http://mirrors.bfsu.edu.cn/centos/7.8.2003/isos/x86_64/
http://mirrors.cn99.com/centos/7.8.2003/isos/x86_64/
http://mirrors.nju.edu.cn/centos/7.8.2003/isos/x86_64/
Other mirrors further away:
http://mirror01.idc.hinet.net/centos/7.8.2003/isos/x86_64/
http://centos.mirror.hostinginside.com/7.8.2003/isos/x86_64/
http://ftp.stu.edu.tw/Linux/CentOS/7.8.2003/isos/x86_64/
http://centos.cs.nctu.edu.tw/7.8.2003/isos/x86_64/
http://free.nchc.org.tw/centos/7.8.2003/isos/x86_64/
http://ftp.tc.edu.tw/Linux/CentOS/7.8.2003/isos/x86_64/
http://ftp.ksu.edu.tw/pub/CentOS/7.8.2003/isos/x86_64/
http://ftp.twaren.net/Linux/CentOS/7.8.2003/isos/x86_64/
http://centos.communilink.net/7.8.2003/isos/x86_64/
http://centos.nethub.com.hk/7.8.2003/isos/x86_64/
http://mirror.hkt.cc/centos/7.8.2003/isos/x86_64/
http://centos.01link.hk/7.8.2003/isos/x86_64/
http://mirror-hk.koddos.net/centos/7.8.2003/isos/x86_64/
http://mirror.worria.com/centos/7.8.2003/isos/x86_64/
http://mirrors.icidc.com/centos/7.8.2003/isos/x86_64/
http://repo.virtualhosting.hk/centos/7.8.2003/isos/x86_64/
http://mirror.hostlink.com.hk/centos/7.8.2003/isos/x86_64/
http://ftp.cuhk.edu.hk/pub/Linux/centos/7.8.2003/isos/x86_64/
http://centos.uhost.hk/7.8.2003/isos/x86_64/
- others, see the full list of mirrors: https://www.centos.org/download/mirrors/
Mirrors verified Fri Oct 9 07:42:11 2020 UTC
You can also download the ISO images using bittorrent, a peer-to-peer file sharing protocol. The .torrent files can be found from CentOS mirrors. Various bittorrent clients are available, including (in no particular order of preference): utorrent, vuze (Azureus), BitTorrent, Deluge, ctorrent, ktorrent, rtorrent and transmission. Packaged copies of various torrent clients for CentOS can be found in the repositories listed in the following wiki article: https://wiki.centos.org/AdditionalResources/Repositories