[Bug 1882797] [NEW] prepend statement in /etc/dhcp/dhclient.conf does not work

[Wolf Pichler]

Public bug reported:

Neither the prepend nor the append statement in /etc/dhcp/dhclient.conf
works anymore.

E.g.:
prepend domain-name-servers 1.1.1.1,8.8.8.8;

---

lsb_release -rd                                                                                                                       │·········································
Description:    Ubuntu 20.04 LTS                                                                                                                                   │·········································
Release:        20.04

apt-cache policy isc-dhcp-client                                                                                                      │·········································
isc-dhcp-client:                                                                                                                                                   │·········································
  Installed: 4.4.1-2.1ubuntu5                                                                                                                                      │·········································
  Candidate: 4.4.1-2.1ubuntu5                                                                                                                                      │·········································
  Version table:                                                                                                                                                   │·········································
 *** 4.4.1-2.1ubuntu5 500                                                                                                                                          │·········································
        500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages                                                                                             │·········································
        100 /var/lib/dpkg/status

** Affects: isc-dhcp (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: dns focal

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https://bugs.launchpad.net/bugs/1882797

Title:
  prepend statement in /etc/dhcp/dhclient.conf does not work

Status in isc-dhcp package in Ubuntu:
  New

Bug description:
  Neither the prepend nor the append statement in
  /etc/dhcp/dhclient.conf works anymore.

  E.g.:
  prepend domain-name-servers 1.1.1.1,8.8.8.8;

  ---

  lsb_release -rd                                                                                                                       │·········································
  Description:    Ubuntu 20.04 LTS                                                                                                                                   │·········································
  Release:        20.04

  apt-cache policy isc-dhcp-client                                                                                                      │·········································
  isc-dhcp-client:                                                                                                                                                   │·········································
    Installed: 4.4.1-2.1ubuntu5                                                                                                                                      │·········································
    Candidate: 4.4.1-2.1ubuntu5                                                                                                                                      │·········································
    Version table:                                                                                                                                                   │·········································
   *** 4.4.1-2.1ubuntu5 500                                                                                                                                          │·········································
          500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages                                                                                             │·········································
          100 /var/lib/dpkg/status

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