shell:$ nslookup -timeout=2 -retry=1 'access.edx.org'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
access.edx.org	canonical name = 2u-guid-production-cd-mcvxyjd68te6npiw.edge.tenants.us.auth0.com.
Name:	2u-guid-production-cd-mcvxyjd68te6npiw.edge.tenants.us.auth0.com
Address: 104.18.43.182
Name:	2u-guid-production-cd-mcvxyjd68te6npiw.edge.tenants.us.auth0.com
Address: 172.64.144.74
Name:	2u-guid-production-cd-mcvxyjd68te6npiw.edge.tenants.us.auth0.com
Address: 2606:4700:4403::ac40:904a
Name:	2u-guid-production-cd-mcvxyjd68te6npiw.edge.tenants.us.auth0.com
Address: 2606:4700:440c::6812:2bb6