shell:$ nslookup -timeout=2 -retry=1 'portal.grab.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	portal.grab.com
Address: 3.1.54.230
Name:	portal.grab.com
Address: 52.74.206.239
Name:	portal.grab.com
Address: 46.51.221.159
Name:	portal.grab.com
Address: 18.136.170.57
Name:	portal.grab.com
Address: 13.251.206.218
Name:	portal.grab.com
Address: 52.77.11.248
Name:	portal.grab.com
Address: 54.169.30.228
Name:	portal.grab.com
Address: 13.214.89.6