Public bug reported:
I tried to change the nameservers like
netplan set "ethernets.eth0.nameservers.addresses=[192.168.100.1,
192.168.100.19]"
and found
nameservers:
addresses:
- 192.168.100.1
- 8.8.8.8
- 192.168.100.19
Existing nameservers do not get deleted. Even tried
netplan set "ethernets.eth0.nameservers.addresses=[]"
but that too does not delete nameservers.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: netplan.io 0.106.1-7ubuntu0.22.04.4
ProcVersionSignature: Ubuntu 5.15.0-141.151-generic 5.15.179
Uname: Linux 5.15.0-141-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.8
Architecture: amd64
CasperMD5CheckResult: pass
Date: Tue Jul 8 15:10:46 2025
InstallationDate: Installed on 2023-01-19 (901 days ago)
InstallationMedia: Ubuntu-Server 22.04.1 LTS "Jammy Jellyfish" - Release amd64
(20230110)
SourcePackage: netplan.io
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: netplan.io (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy third-party-packages uec-images
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https://bugs.launchpad.net/bugs/2116180
Title:
Using "netplan set" to update nameservers not as expected
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