Solution:
Step 1: through dig @ 114.114.114.114 registry-1 docker.io Find available IP address
The IP address is not fixed and may change, so you need to try several more times (several IP)
Step 2: modify/etc/hosts docker.io The relevant domain name is resolved to other available IP addresses
Step 3: after saving the configuration file, try again many times to download the image successfully
Step 4: verify success
Reprinted: https://www.cnblogs.com/python-wen/p/11224555.html