shell:$ nslookup -timeout=2 -retry=1 '1a72810c5fae4c318e6c1bcad0b22215.vip1.huaweicloudwaf.com'
;; communications error to 75.98.161.224#53: timed out
Server:		69.39.86.5
Address:	69.39.86.5#53

Non-authoritative answer:
Name:	1a72810c5fae4c318e6c1bcad0b22215.vip1.huaweicloudwaf.com
Address: 159.138.177.220
Name:	1a72810c5fae4c318e6c1bcad0b22215.vip1.huaweicloudwaf.com
Address: 159.138.177.117
Name:	1a72810c5fae4c318e6c1bcad0b22215.vip1.huaweicloudwaf.com
Address: 159.138.177.207
Name:	1a72810c5fae4c318e6c1bcad0b22215.vip1.huaweicloudwaf.com
Address: 159.138.177.68