After a fresh install of Oracle Linux 7.4 and trying to run a ‘sudo yum update’ I get:
One of the configured repositories failed (Latest Unbreakable Enterprise Linux Server 7 Server (x86_64)
Following the recommendations following the error didn’t help, and this post suggested trying a ‘sudo yum clean’, but this didn’t fix it either.
Checking if I have network connectivity, it’s seems I can’t ping www.google.com or ping 18.104.22.168. I’ve come across this before with RHEL/CentOS installs and forgetting to enable the network interface options during install. Checking /etc/sysconfig/network-scripts/ifcfg-* the ONBOOT property was set to no. Changing it to yes and rebooting did the trick.