Public bug reported:
$ lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
$ apt-cache policy network-manager
network-manager:
Installed: 1.10.6-2ubuntu1
Candidate: 1.10.6-2ubuntu1
Version table:
*** 1.10.6-2ubuntu1 500
500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
100 /var/lib/dpkg/status
After connecting to a VPN the parent connection's DNS servers are cleared, as
seen in the output of `systemd-resolve --status`.
Before connection to VPN:
(...)
Link 3 (wlp2s0)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 62.179.1.63
62.179.1.62
DNS Domain: chello.pl
Link 2 (enp1s0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Connected to VPN, notice that only the ppp0 has DNS servers:
(...)
Link 20 (ppp0)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.64.5
192.168.97.10
DNS Domain: ~dcs.pl
Link 3 (wlp2s0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 2 (enp1s0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
I want to use split-horizon DNS resolving, and this behaviour breaks resolving
non-VPN names.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1768203
Title:
Connecting to a VPN clears DNS from parent connection
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