[Bug 1624317] Re: systemd-resolved breaks VPN with split-horizon DNS

[Jordi Miralles]

Hi,

I have been posting quite a bit of information on bug

https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1652525

As I didn't really realize there was this one open too, sorry. Maybe
something is going to be useful for you.

Cheers,

J

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https://bugs.launchpad.net/bugs/1624317

Title:
  systemd-resolved breaks VPN with split-horizon DNS

Status in systemd:
  New
Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  I use a VPN configured with network-manager-openconnect-gnome in which
  a split-horizon DNS setup assigns different addresses to some names
  inside the remote network than the addresses seen for those names from
  outside the remote network.  However, systemd-resolved often decides
  to ignore the VPN’s DNS servers and use the local network’s DNS
  servers to resolve names (whether in the remote domain or not),
  breaking the split-horizon DNS.

  This related bug, reported by Lennart Poettering himself, was closed with the current Fedora release at the time reaching EOL:
  https://bugzilla.redhat.com/show_bug.cgi?id=1151544

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