[Bug 1543794] Re: isc-dhcp-server fails to start on second & further attempts with 'Can't open /var/lib/dhcp/dhcpd.leases for append'

[Launchpad Bug Tracker]

This bug was fixed in the package isc-dhcp - 4.3.3-5ubuntu9

---------------
isc-dhcp (4.3.3-5ubuntu9) xenial; urgency=medium

  * debian/isc-dhcp-server.isc-dhcp-server{,6}.service: adjust permissions
    for most recent PARANOIA commits to avoid granting 'capability
    dac_override' in the AppArmor profile on second and subsequent starts
    (LP: #1543794):
    - /var/lib/dhcp is root:dhcpd and 775
    - /var/lib/dhcp/dhcpd{,6}.leases is root:dhcpd and 664
    - don't chown /run/dhcp-server to dhcpd:dhcpd since the pid file is now
      created as root:root and the pid file was not being created before. If
      this needs to be reintroduced in the future, use root:dhcpd and 775,
      like with the leases file.

 -- Jamie Strandboge <jamie at ubuntu.com>  Tue, 01 Mar 2016 08:19:43 -0600

** Changed in: isc-dhcp (Ubuntu)
       Status: Fix Committed => Fix Released

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Title:
  isc-dhcp-server fails to start on second & further attempts with
  'Can't open /var/lib/dhcp/dhcpd.leases for append'

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