[Bug 1899797] Missing required logs.

[Ubuntu Kernel Bot]

This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1899797

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: bionic

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https://bugs.launchpad.net/bugs/1899797

Title:
  dns does not resolve some names after updating kernel from 4.15.0-117
  to a newer sub_version like -118 or -121

Status in linux package in Ubuntu:
  Incomplete
Status in systemd package in Ubuntu:
  New

Bug description:
  This morning i've got a kernel update. After that I could not send
  mails using thunderbird contacting my mail provider kontent.com.

  The last working system was: Linux server 4.15.0-117-generic
  #118-Ubuntu SMP Fri Sep 4 20:02:41 UTC 2020 x86_64 x86_64 x86_64
  GNU/Linux

  I tried 4.15.0-118 and 4.15.0-121 but using these I could not resolve:
  smtp.kontent.com - but I could resolve www.google.de.

  So it seems that using the newer kernels 118 and 121 I can not resolve
  some but not all addresses.

  I returned to kernel 4.15.0-117 and everything works fine again.

  systemd-resolve --status
  Global
           DNS Servers: 172.30.30.1    <--- this is an local router next to my "server"
            DNS Domain: ami.intranet
            DNSSEC NTA: 10.in-addr.arpa
                        16.172.in-addr.arpa
                        168.192.in-addr.arpa
                        17.172.in-addr.arpa
                        18.172.in-addr.arpa
                        19.172.in-addr.arpa
                        20.172.in-addr.arpa
                        21.172.in-addr.arpa
                        22.172.in-addr.arpa
                        23.172.in-addr.arpa
                        24.172.in-addr.arpa
                        25.172.in-addr.arpa
                        26.172.in-addr.arpa
                        27.172.in-addr.arpa
                        28.172.in-addr.arpa
                        29.172.in-addr.arpa
                        30.172.in-addr.arpa
                        31.172.in-addr.arpa
                        corp
                        d.f.ip6.arpa
                        home
                        internal
                        intranet
                        lan
                        local
                        private
                        test

  Link 2 (enp0s25)
        Current Scopes: DNS
         LLMNR setting: yes
  MulticastDNS setting: no
        DNSSEC setting: no
      DNSSEC supported: no
           DNS Servers: 172.30.30.1
            DNS Domain: ~.
                        ami.intranet
  andreas at server:~$ host smtp.kontent.com
  smtp.kontent.com has address 81.88.40.61

  doning the same with a newer kernel results in a "SERVERFAIL 2 error"

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