[Bug 1797602] Re: systemd incompatible with openresolv and dnsmasq

[Dan Streetman]

please reopen if this is still an issue

** Changed in: systemd (Ubuntu)
       Status: New => Invalid

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Title:
  systemd incompatible with openresolv and dnsmasq

Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Problem: systemd breaks resolvconf-dependent DNS

  Test case: Install dnsmasq with systemd.

  Result:
    The script in /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines the make_resolv_conf() function to pass DHCP information to the /sbin/resolvconf program.
    The script in /etc/dhcp/dhclient-enter-hooks.d/resolved redefines the make_resolv_conf() function to write DHCP information to /run/systemd/resolved.conf.d/isc-dhcp-v4-$interface.conf
    As a result, resolvconf never runs, and dnsmasq never receives the DHCP-supplied nameservers.
    Therefore, DNS resolution is broken.

  Expected result:
    DHCP-supplied nameservers should be passed to both resolvconf and to systemd.

  Workaround:
    Use the 127.0.0.53 address for the systemd resolver as the dnsmasq upstream server.

  lsb_release -rd output:

  Description:    Ubuntu 18.04.1 LTS
  Release:        18.04

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