Whenever I'm on a network that is anything less than rock solid (any packet loss, pretty much anything except cable ethernet) my Ubuntu 17.04 suffers from frequent DNS issues. Not only does it fail to resolve a name but also caches that and then fails to resolve the same name until I restart the local DNS service
systemctl restart systemd-resolved.service
or just change the server to Google's 8.8.8.8 in /etc/resolv.conf.
It seems that the local resolver caches failures instead of retrying when faced with less-than-perfect connection.
How can I improve the resilience of the DNS service or disable it completely?
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