TIL: change DNS with NetworkManager

man/nmcli, networkmanager.md

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+---
+date created: Saturday, January 11th 2025, 9:26:35 am
+date modified: Saturday, January 11th 2025, 9:34:42 am
+tags: 
+---
+
+# nmcli, networkmanager
+
+NetworkManager - network management daemon
+
+## restart NetworkManager
+
+it's NetworkManager, not networkmanager :)
+
+```shell
+systemctl restart NetworkManager.service
+```
+
+## get general network overview
+
+```shell
+nmcli
+```
+
+## get list of network devices and status
+
+```shell
+nmcli device status
+```
+
+## get information about networkmanager connections
+
+```shell
+nmcli con
+```
+
+## change dns resolver with NetworkManager
+
+instead of editing `/etc/resolv.conf`, do the following (with `nmcli con` you get the connection name.):
+
+```shell
+nmcli con mod "Wired connection 1" ipv4.dns "127.0.0.1"
+nmcli con mod "Wired connection 1" ipv6.dns "::1"
+```
+
+### disable DHCP provided dns
+
+if you execute the above, you'll still have the DNS servers provided by the DHCP server available as well, do disable this behavior:
+
+```shell
+nmcli con mod "Wired connection 1" ipv4.ignore-auto-dns yes
+nmcli con mod "Wired connection 1" ipv6.ignore-auto-dns yes
+```