Install dnssec-trigger by entering the following commands in the terminal:
sudo apt update sudo apt install dnssec-trigger
Description:
reconfiguration tool to make DNSSEC work
Dnssec-trigger reconfigures the local unbound DNS server. This unbound DNS server performs DNSSEC validation, but dnssec-trigger will signal it to use the DHCP obtained forwarders if possible, and fallback to doing its own AUTH queries if that fails, and if that fails prompt the user via dnssec-trigger-applet the option to go with insecure DNS only.
Homepage: http://www.nlnetlabs.nl/projects/dnssec-trigger/
Version: 0.13-6build1
Section: universe/net