temporary failure in name resolution ubuntu error resolution

When encountering a link to a certain address, the domain name cannot be resolved, and an error is reported as the title.
Specific error information:

First of all, you can verify it according to the results of google. Secondly, if you always have the IP of the domain name, you can directly add a line at the end of the /etc/hosts file

for example:

8.131.136.138 rm-2ze0y5kspbucp6oapqo.mysql.rds.aliyuncs.com