Ubuntu
isc-dhcp package

  1. Trusty (14.04)
  2. Bug #1186662
  3. Comment #48

Comment 48 for bug 1186662

Revision history for this message
Rob Traders (rob-traderspit) wrote :

I'm fighting since 14.04 LTS with this lease file issue. The fixes provided in the release of isc-dhcp-server 4.3.3-5ubuntu12 does not fix the behaviour in 16.04 LTS (xenial) for me. The reason is the configuration of apparmaor for the binary /usr/sbin/dhcpd, which prevent the manipulation of the leases file. I tried to fix the capabilities, but can't find a solution. The settings "capability dac_override" has no effect.

Temporary I disabled apparmor interception for isc-dhcpd-server by symlinking to disable folder.
# ln -s /etc/apparmor.d/usr.sbin.dhcpd /etc/apparmor.d/disable/
and restartet the dhcpd. This solves the problem, but it let the dhcpd be unprotected by apparmor.

To fix it finaly, please provide a working /etc/apparmor.d/usr.sbin.dhcpd with the required policy file.