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I'm using Hyper-V to create a VM running Ubuntu 18.04. I'm having some issues with docker not resolving DNS requests properly. This guide suggests using nmcli to identify the DNS server.

$ nmcli dev show | grep 'IP4.DNS'
IP4.DNS[1]:                             10.0.0.2

First of all, is nmcli installed by default? I don't think so, but even after installing it running this command doesn't show anything for IP4.DNS -- nor even DNS. Is there a better way of discovering what DNS server my installation is using?

WhiskerBiscuit
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4 Answers4

4

nmcli dev show is a good option.

File /etc/resolv.conf will have the nameservers actually configured for name resolution, so if you run cat /etc/resolv.conf you should see your current DNSs' servers.

Pablo Bianchi
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Leo Mendez
  • 41
2

nslookup unraid.local I think this is the most accurate way to find which DNS you are using. Or just check /etc/resolv.conf content.

nmcli dev show or systemd-resolve --status only show DNS server settings in its configuration, but your DNS may be controlled by other programs.

Jay
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1

As resolv.conf states, you can use

resolvectl status

to show the currently used configuration

Philippp
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0
resolvectl dns

Shows globally defined dns server as well as a list of bridges and network interfaces with their defined dns servers

modesto
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