[Bug 2011628] Re: Apparmor Disallows Disabling Dhclient Scripts

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: isc-dhcp (Ubuntu Focal)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2011628

Title:
  Apparmor Disallows Disabling Dhclient Scripts

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Focal:
  Confirmed
Status in isc-dhcp source package in Jammy:
  Confirmed
Status in isc-dhcp source package in Lunar:
  Won't Fix
Status in isc-dhcp package in Debian:
  New

Bug description:
  In some cases, it may be desirable to disable dhclient scripts. By
  default /sbin/dhclient-script is used, and some others are allowed by
  the apparmor profile.

  Without Apparmor, disabling hook scripts can be accomplished with
  flags -sf /bin/true, but with apparmor enabled this gets blocked:

  execve (/bin/true, ...): Permission denied

  Unfortunately dhclient doesn't appear to provide any other mechanism
  for disabling hook scripts.

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