2024-06-12 18:45:04 +01:00
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---
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id: 2w0e
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tags: [Linux, networks]
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created: Wednesday, June 12, 2024
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---
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# Set DNS settings
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## Change the default DNS server
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On Arch and most modern Linux distributions domain name resolution is handled
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via the `systemd-resolved` #systemd configuration.
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Within the system systemd files this will be handled in
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2024-06-17 18:15:03 +01:00
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`/etc/systemd/network/wired.network` or `/etc/systemd/network/wlan.network`
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files etc.
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2024-06-12 18:45:04 +01:00
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In the file below I have turned of DHCP routing and specified the address of my
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2024-06-17 20:00:04 +01:00
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Pi-Hole device to handle domain name resolution:
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2024-06-12 18:45:04 +01:00
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```
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#wlan.network
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[Match]
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Name=wl*
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[Link]
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RequiredForOnline=routable
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[Network]
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DHCP=yes
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DNS=192.168.0.4
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MulticastDNS=yes
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[DHCPv4]
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UseDNS=no
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RouteMetric=600
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[IPv6AcceptRA]
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RouteMetric=600
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```
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2024-06-17 20:00:04 +01:00
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This stops it using the default DNS server of my router and runs the resolutions
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against Pi-Hole.
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2024-06-17 20:15:04 +01:00
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This should automatically update the two `resolv.conf` files (which should be in
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syc), viz:
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```
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# File: /run/NetworkManager/resolv.conf
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# Generated by NetworkManager
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nameserver 192.168.0.4
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nameserver fded:2060:8671:0:681:9bff:fe9b:37f0
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```
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```
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# File: /etc/resolv.conf
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# Generated by NetworkManager
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nameserver 192.168.0.4
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nameserver fded:2060:8671:0:681:9bff:fe9b:37f0
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```
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2024-06-12 18:45:04 +01:00
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## Related notes
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2024-06-17 20:00:04 +01:00
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