1. Official website download address
2. Tsinghua University download address
3. Ali download address
centos-7-isos-x86_64 installation package download_Open Source Mirror Station-Alibaba Cloud
4. Take Ali download as an example
step1: Enter Alibaba Cloud site, select CentOS-7-x86_64-DVD-1804.iso to download
Description of the ISO image files of each version:
CentOS-7-x86_64-DVD-1708.iso standard installation version (recommended)
CentOS-7-x86_64-Everything-1708.iso full version, integrating all software (used to supplement system software or fill local mirror)
CentOS-7-x86_64-LiveGNOME-1708.iso GNOME desktop version
CentOS-7-x86_64-LiveKDE-1708.iso KDE desktop version
CentOS-7-x86_64-Minimal-1708.iso Lite version with minimal software
CentOS-7-x86_64-NetInstall-1708.iso network installation version (installation from the network or rescue system)