ping command can't use

[smounives]

when ping an IP:
ping 172.16.1.1 ping: 172.16.1.1: Address family for hostname not supported

when ping an domain:
ping github.com ping: github.com: Name or service not known

[turbo]

Provide output of curl -I github.com please.

[smounives]

curl -I github.com
HTTP/1.1 301 Moved Permanently
Content-length: 0
Location: https://github.com/
Connection: close

[planktonzp]

meet a same question

[Godjqb]

me too