I might be way off base here, but this reminds me of Ubuntu 18.04 LTS using Netplan which configures amongst other things the /etc/resolv.conf file. IIRC, /etc/resolv.conf is auto-configured to point to a local dnsmasq server. And I believe the dnsmasq server auto-populates with successful name resolutions, cacheing the results for future lookups (I'm guessing here because I never really investigated how it was setup or works).
Netplan is configured through the file /etc/netplan/01-netcfg.yml. Perhaps Centos7 is using the same network configuration as Ubuntu 18.04 LTS. Something you can check out. I just did a google search and here's an interesting post ( https://renediepstraten.nl/?p=56), something worth checking out. -- This mailing list is governed under the HashiCorp Community Guidelines - https://www.hashicorp.com/community-guidelines.html. Behavior in violation of those guidelines may result in your removal from this mailing list. GitHub Issues: https://github.com/mitchellh/vagrant/issues IRC: #vagrant on Freenode --- You received this message because you are subscribed to the Google Groups "Vagrant" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/vagrant-up/614bb518-9c9a-4126-8457-61b7940e620d%40googlegroups.com.
