Cubic Custom ISO Ubuntu 18.04 DNS Fix

[raw] mkdir -p /etc/run/systemd/resolve
ln -sr /etc/run/systemd/resolve/resolv.conf /etc/run/systemd/resolve/stub-resolv.conf
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Now add a nameserver to stub-resolv.conf

[raw] nameserver 1.1.1.1
nameserver 1.0.0.1
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