nelsnelson [comrade/them, love/loves] @ nelsnelson @hexbear.net

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2 yr. ago

Via ChatGPT 4 (accuracy unverified):

Yes, you can configure systemd-resolved to use the DNS servers in the order provided without dynamically switching based on speed. Here’s how you can do it:

1. Edit the resolved configuration file:Open the resolved.conf file in a text editor:

    bash

       
   sudo nano /etc/systemd/resolved.conf
   
   
     

2. Modify or add the following line:

    bash

       
   DNS=`IP_of_pihole` `IP_of_mikrotik`
   DNSStubListener=no
   FallbackDNS=
   
     

   Replace IP_of_pihole and IP_of_mikrotik with your actual DNS IP addresses. This tells systemd-resolved to only use the DNS servers in the order you've specified.
3. Prevent automatic DNS changes by network manager:If you're using NetworkManager, create a drop-in configuration to prevent it from overriding DNS settings:

    bash

       
   sudo mkdir -p /etc/NetworkManager/conf.d/
   sudo nano /etc/NetworkManager/conf.d/dns.conf
   
     

   Add the following content:

    bash

       
   [main]
   dns=none
   
   
     

4. Restart services:After making these changes, restart systemd-resolved and NetworkManager:

    bash

       
   sudo systemctl restart systemd-resolved
   sudo systemctl restart NetworkManager
   
     

This should ensure that your system uses the DNS servers in the order provided without any automatic switching.

Oh, that's interesting. I wonder if the maintainer would be willing to accept a PR to fix.

That sounds like something I would enjoy doing for software that I personally enjoy using free of charge, and I love writing Python code.

This article is too short and shallow to be useful or interesting.