[Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Martin Jackson]

I am running 14.04 as well.

I set my DHCP servers to aa-complain mode.  On my secondary (failover)
partner, the dhcpd.leases file is owned root:root, even after changing
the root:root ownerships to dhcpd:dhcpd in isc-dhcp-server.conf in
/etc/init.

I was getting some peculiar address changing behaviors, so I set the
split in my failvover conf to 255.  This seems to be working, but I find
it far from ideal.

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https://bugs.launchpad.net/bugs/1186662

Title:
  isc-dhcp-server fails to renew lease file

Status in “isc-dhcp” package in Ubuntu:
  Triaged

Bug description:
  After raring upgrade, the dhcp server fails to renew lease file when
  it tries to (about every hour).

  The syslog says:
  dhcpd: Can't create new lease file: Permission denied

  It looks like a permission problem, because

  # chown -R dhcpd:dhcpd /var/lib/dhcp

  the above command temporarily solves the issue, until dhcpd is
  restarted: at that time, the ownership of the directory and the lease
  file is set back to root:root.

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