ERROR: cannot verify nih. At's certificate, issued by "/c=us/o=let's encrypt/cn=r3", WGet reports an error

--2022-06-20 16:06:37--  https://nih.at/libzip/libzip-1.2.0.tar.gz
Resolving nih.at... 5.2.73.210, 2a04:52c0:101:2e6::de6c
Connecting to nih.at|5.2.73.210|:443... connected.
ERROR: cannot verify nih.at’s certificate, issued by “/C=US/O=Let's Encrypt/CN=R3”:
  Issued certificate has expired.
To connect to nih.at insecurely, use ‘--no-check-certificate’

In fact, after carefully reading the error report, you will know , Look at the last line , Prompt

First step ：

It is recommended to run this command first （ If an error is reported, you can skip the second step and try ）：

sudo yum install -y ca-certificates

The second step ：

Before wget https://xxxxx command , Change to the following command ,--no-check-certificate This is the last line of the error message

wget --no-check-certificate https://xxxxx

Perfect solution

remarks ：wget --no-check-certificate This parameter will allow you to wget Carry out the alignment https The certificate is no longer checked when the site requests .