``` [atomic-sig at slave01 ~]$ host cbs.centos.org cbs.centos.org has address 172.20.1.15 [atomic-sig at slave01 ~]$ curl https://cbs.centos.org/repos/virt7-docker-common-candidate/x86_64/os/ ^C ``` Just times out - I'm guessing there's some intermediate firewall, or perhaps IP conflict on the 172.19 subnet? Using the external IP works: ``` [atomic-sig at slave01 ~]$ host cbs.centos.org 8.8.8.8 Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: cbs.centos.org has address 66.187.224.194 [atomic-sig at slave01 ~]$ curl http://66.187.224.194/repos/virt7-docker-common-candidate/x86_64/os/ <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> ```