Alibaba cloud ECS curl error 6

curl error 6
curl: (6) could not resolve host

According to the online statement, the DNS is modified to 8.8.8.8 and 8.8.4.4, which are still invalid
. After the start order
on aliyun, the DNS is changed to 100.100.2.138 and 100.100.2.136

Read More: