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OZ1SEJ
Asked: 2021-04-25 08:02:52 +0800 CST

How to disable 127.0.0.53 as DNS?

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For some reason, my DNS seems to be set to 127.0.0.53. It's not really a problem, since my local (i.e. on my laptop) DNS seems to redirect DNS requests to the default gateway. But I would like it to not go that way. I suppose I must have installed some DNS server at some time in the past...

When I run $ nslookup, default server is always 127.0.0.53.

I found a post suggesting that I set DNSStubListener=no in /etc/systemd/resolved.conf, but this resulted in no DNS requests coming through. I could of course enter my default gateway manually, but then I would have to change it every time I brought my laptop to work.

Any suggestions?

EDIT: Adding the "hosts" line of /etc/nsswitch.conf:

hosts:          files mdns4_minimal [NOTFOUND=return] dns
dns

1 Answers

  1. Best Answer

    The DNS Servers are managed by systemd-resolved, or by dnsmasq (if you have that installed).

    If dnsmasq is installed, you must edit /etc/systemd/resolved.conf, else you'll have two DNS mechanisms fighting for port 53, so...

    change:

    #DNSStubListener=yes

    to this:

    DNSStubListener=no

    /etc/resolv.conf normally contains 127.0.0.53, which is the local address for the local DNS mechanism. Do NOT manually edit this file (it says so right in the file itself).

    To view what actual DNS servers are being used, do this...

    resolvectl status | grep -i "DNS Serve"

    More than likely it'll report 192.168.0.1 (the address of your router, or the DNS servers of your VPN service, if you use a VPN). Your router will probably use your ISP's DNS servers, unless you've manually changed that in your router's admin config page (highly recommended).

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