[Bug 2011628] Re: Apparmor Disallows Disabling Dhclient Scripts

[Brett Holman]

Debdiff in the attached enables dhclient to execute dhclient with -sf
/bin/true

** Patch added: "isc-dhcp-apparmor-scripts-disable-fix.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/2011628/+attachment/5654529/+files/isc-dhcp-apparmor-scripts-disable-fix.debdiff

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Title:
  Apparmor Disallows Disabling Dhclient Scripts

Status in isc-dhcp package in Ubuntu:
  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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