[Bug 1990141] [NEW] Split-DNS not working in vpnc-scripts after renaming systemd-resolve to resolvectrl

[Michael Fuchs]

Public bug reported:

Setting up a VPN with openconnect and split DNS is not working correctly
after dist-upgrade from 21.10 to 22.04. The vpnc-script still refers to
"systemd-resolve" to check for systemd-resolved and fails due to the
name change to "resolvectl". Thus the DNS servers are written into the
resolve.conf and thus breaks the split DNS functionality.

As a quick workaround it was sufficient to create a symlink: 
  sudo ln /usr/bin/resolvectl /usr/bin/systemd-resolve

As fix I would suggest to update the vpnc-script to use "resolvectl".

Source: /usr/share/vpnc-scripts/vpnc-script line 143:

grep '^hosts' /etc/nsswitch.conf 2>/dev/null|grep resolve >/dev/null 2>&1 && command systemd-resolve --status >/dev/null 2>&1
if [ $? = 0 ];then
	RESOLVEDENABLED=1
else
	RESOLVEDENABLED=0
fi

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.15.0-47.51-generic 5.15.46
Uname: Linux 5.15.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Mon Sep 19 14:35:43 2022
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2019-01-12 (1345 days ago)
InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
Symptom: installation
UpgradeStatus: Upgraded to jammy on 2021-12-03 (290 days ago)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy ubiquity-18.10.12

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubiquity in Ubuntu.
https://bugs.launchpad.net/bugs/1990141

Title:
  Split-DNS not working  in vpnc-scripts after renaming systemd-resolve
  to resolvectrl

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Setting up a VPN with openconnect and split DNS is not working
  correctly after dist-upgrade from 21.10 to 22.04. The vpnc-script
  still refers to "systemd-resolve" to check for systemd-resolved and
  fails due to the name change to "resolvectl". Thus the DNS servers are
  written into the resolve.conf and thus breaks the split DNS
  functionality.

  As a quick workaround it was sufficient to create a symlink: 
    sudo ln /usr/bin/resolvectl /usr/bin/systemd-resolve

  As fix I would suggest to update the vpnc-script to use "resolvectl".

  Source: /usr/share/vpnc-scripts/vpnc-script line 143:

  grep '^hosts' /etc/nsswitch.conf 2>/dev/null|grep resolve >/dev/null 2>&1 && command systemd-resolve --status >/dev/null 2>&1
  if [ $? = 0 ];then
  	RESOLVEDENABLED=1
  else
  	RESOLVEDENABLED=0
  fi

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 5.15.0-47.51-generic 5.15.46
  Uname: Linux 5.15.0-47-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Mon Sep 19 14:35:43 2022
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity quiet splash ---
  InstallationDate: Installed on 2019-01-12 (1345 days ago)
  InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  Symptom: installation
  UpgradeStatus: Upgraded to jammy on 2021-12-03 (290 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1990141/+subscriptions