2024-12-09 18:34:15 +00:00
|
|
|
---
|
|
|
|
|
id: 2w0e
|
|
|
|
|
tags: [Linux, networks]
|
|
|
|
|
created: Wednesday, June 12, 2024
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
# Set DNS settings
|
|
|
|
|
|
|
|
|
|
## Change the default DNS server
|
|
|
|
|
|
|
|
|
|
On Arch and most modern Linux distributions domain name resolution is handled
|
|
|
|
|
via the `systemd-resolved` #systemd configuration.
|
|
|
|
|
|
|
|
|
|
Within the system systemd files this will be handled in
|
|
|
|
|
`/etc/systemd/network/wired.network` or `/etc/systemd/network/wlan.network`
|
|
|
|
|
files etc.
|
|
|
|
|
|
|
|
|
|
In the file below I have turned of DHCP routing and specified the address of my
|
|
|
|
|
Pi-Hole device to handle domain name resolution:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
#wlan.network
|
|
|
|
|
|
|
|
|
|
[Match]
|
|
|
|
|
Name=wl*
|
|
|
|
|
|
|
|
|
|
[Link]
|
|
|
|
|
RequiredForOnline=routable
|
|
|
|
|
|
|
|
|
|
[Network]
|
|
|
|
|
DHCP=yes
|
|
|
|
|
DNS=192.168.0.4
|
|
|
|
|
MulticastDNS=yes
|
|
|
|
|
|
|
|
|
|
[DHCPv4]
|
|
|
|
|
UseDNS=no
|
|
|
|
|
RouteMetric=600
|
|
|
|
|
|
|
|
|
|
[IPv6AcceptRA]
|
|
|
|
|
RouteMetric=600
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
This stops it using the default DNS server of my router and runs the resolutions
|
|
|
|
|
against Pi-Hole.
|
|
|
|
|
|
|
|
|
|
This should automatically update the two `resolv.conf` files (which should be in
|
|
|
|
|
syc), viz:
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
# File: /run/NetworkManager/resolv.conf
|
|
|
|
|
# Generated by NetworkManager
|
|
|
|
|
nameserver 192.168.0.4
|
|
|
|
|
nameserver fded:2060:8671:0:681:9bff:fe9b:37f0
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
# File: /etc/resolv.conf
|
|
|
|
|
# Generated by NetworkManager
|
|
|
|
|
nameserver 192.168.0.4
|
|
|
|
|
nameserver fded:2060:8671:0:681:9bff:fe9b:37f0
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## Related notes
|
|
|
|
|
|
2025-01-17 17:56:09 +00:00
|
|
|
|
|
|
|
|
|
