I run Debian 13 with the network configuration managed by NetworkManager. I would like to change the DNS server.
Command dig debian.net currently reports ;; SERVER: 10.218.0.1#53(10.218.0.1) (UDP) I would like to use 1.1.1.1 as my DNS server so I defined file /etc/NetworkManager/conf.d/DNS.conf # Use Cloudfare DNS instead of ISP's DNS [ipv4] dns=1.1.1.1;1.0.0.1; [ipv6] dns=2606:4700:4700::1111;2606:4700:4700::1001; But command /sbin/NetworkManager --print-config now reports (comments removed) [main] plugins=ifupdown,keyfile configure-and-quit=no [ifupdown] managed=false [ipv4] dns=1.1.1.1;1.0.0.1; [ipv6] dns=2606:4700:4700::1111;2606:4700:4700::1001; [logging] [device] [device-31-mac-addr-change] match-device=driver:eagle_sdio,driver:wl wifi.scan-rand-mac-address=no # WARNING: unknown key 'dns' in section [ipv4] of file '/etc/NetworkManager/conf.d/DNS.conf' # WARNING: unknown key 'dns' in section [ipv6] of file '/etc/NetworkManager/conf.d/DNS.conf' The key 'dns' is invalid in conf.d . What key should I use ? I tried directly modifying the files in /etc/NetworkManager/system-connections/ using nm-connection-editor following https://wiki.debian.org/NetworkConfiguration#Defining_the_.28DNS.29_Nameservers This works for IPv4, but the WiKi does not explain IPv6 DNS, and nm-connection-editor does not accept cut-and-paste for IPv6 addresses. nm-connection-editor has to be run for every connection. Isn't there some way of making a global change ? Roger
