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

[Seth Arnold]

Gaétan, a read-only filesystem could happen either from a drastic IO
error or because the environment is configured to not provide one. I
suggest asking on IRC or http://askubuntu.com/ for help debugging your
read-only filesystem.

Thanks

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Gaétan QUENTIN]

ubuntu 17.10 32 bits: the same
Nov 17 22:02:45 nas dhclient[736]: can't create 
/var/lib/dhcp/dhclient.enp3s0.leases: Read-only file system

drwxr-xr-x 1 root root   44 déc.  13  2016 .
drwxr-xr-x 1 root root  738 juil. 16 18:11 ..
-rw-r--r-- 1 root root 1094 nov.  17 22:02 dhclient.enp3s0.leases

and there is no dhcp user account:

root@nas:/etc# grep -i dhcp /etc/passwd /etc/group
root@nas:/etc#

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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Re: [Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Paul Henderson]

Yes, I share your frustration. However, the workaround to change the
permissions of the /var/lib/dhcp directory to dhcpd:dhcpd is working for
me. We shouldn't need a workaround, but at least there is one available.

On 2017-04-30 06:54, Emmanuel Proust wrote:

> Hi all,
> 
> Soon 4 years and still no fix for this issue !
> 
> I would like to know any suggestion to make this fixed :
> 
> - any Canonical contact to explain that the linux community is used to
> say that Microsoft is very slow to fix bugs...
> 
> - any famous community site to inform ubuntu users that such an issue
> still affects 3 LTS versions (12.04 / 14.04 / 16.04) and it is just a
> shame.
> 
> - ?
> 
> I regret a lot to write such comments but I noticed that nothing
> happens.
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1186662
> 
> Title:
> isc-dhcp-server fails to renew lease file
> 
> Status in isc-dhcp package in Ubuntu:
> Fix Released
> Status in isc-dhcp source package in Trusty:
> 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.
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Emmanuel Proust]

Hi,

Not seen your message on the launchpad topic.

I would prefer reply on the topic so that the whole subscribers will be
able to read it.

As a summary : Slackware is not an option for me.

I would choose a more professional distro like Opensuse if I had to replace
*buntu. But my first choice would be that *buntu evolve to be become a
professional and reliable distro.
Cheers

Le 7 sept. 2016 9:26 AM, "Emsi"  a écrit :

> I got the same on 16.04 after upgrading from 15.10.
> It really sucks nobody can fix it for so many years.
> Use Slackware guys.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1186662
>
> Title:
>   isc-dhcp-server fails to renew lease file
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/
> 1186662/+subscriptions
>

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Emmanuel Proust]

Hi all,

Soon 4 years and still no fix for this issue !

I would like to know any suggestion to make this fixed :

- any Canonical contact to explain that the linux community is used to
say that Microsoft is very slow to fix bugs...

- any famous community site to inform ubuntu users that such an issue
still affects 3 LTS versions (12.04 / 14.04 / 16.04) and it is just a
shame.

- ?

I regret a lot to write such comments but I noticed that nothing
happens.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Dominik]

Sorry. My description was for Xenial and there is no systemd in Xenial
(previous LTS, should be fixed there too IMO).

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You received this bug notification because you are a member of Ubuntu
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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Dominik]

Brr... s/Xenial/Trusty/ Sorry again.

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You received this bug notification because you are a member of Ubuntu
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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Steve Langasek]

On Thu, Sep 29, 2016 at 08:46:59PM -, Dominik wrote:

> It seems to me, that the leases file is created as root after startup and
> then the user of the processs changes to dhcp or whatever.

The systemd unit for isc-dhcp-server very explicitly sets the permissions on
/var/lib/dhcp/dhcpd.leases to be writable by the dhcpd process, before it is
ever started.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Dominik]

It seems to me, that the leases file is created as root after startup and then 
the user of the processs changes to dhcp or whatever. I have to approve this 
yet.
Kind regards.


> Am 07.09.2016 um 23:46 schrieb Steve Langasek :
> 
> Ok, your 'systemctl show' output matches the default by all relevant
> measures, and the only modified conffile is the expected one (your dhcpd
> config).  So I'm afraid this brings us no closer to understanding why
> this fails for some people and not for others.
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1186662
> 
> Title:
>  isc-dhcp-server fails to renew lease file
> 
> Status in isc-dhcp package in Ubuntu:
>  Fix Released
> Status in isc-dhcp source package in Trusty:
>  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.
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Emmanuel Proust]

Double checked with several devices connected with static leases.

Nothing else than the following content in my dhcpd.leases file...

cat /var/lib/dhcp/dhcpd.leases

gives :

# The format of this file is documented in the dhcpd.leases(5) manual page.
# This lease file was written by isc-dhcp-4.3.3

server-duid "\000\001\000\001\037@\213\210\000PV\213\320+";

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

I use the isc-dhcp as a closed/restricted dhcp using the deny unknown-
clients; directive.

Please could someone confirm that ALL leases should be listed in
/var/lib/dhcp/dhcpd.leases ?

Tomorrow I will test on site my isc-dhcp using :
- the current configuration with clients I will be able to manage,
- an open configuration (removing the unknown-clients; directive.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Hi set-arnold,
Done a dmesg | grep DENIED
No result.

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Seth Arnold]

eproust, could you run dmesg | grep DENIED to see if there are AppArmor
denials blocking your server?

Thanks

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Bad news...

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Steve Langasek]

Ok, your 'systemctl show' output matches the default by all relevant
measures, and the only modified conffile is the expected one (your dhcpd
config).  So I'm afraid this brings us no closer to understanding why
this fails for some people and not for others.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1186662

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

# debsums -e isc-dhcp-server
/etc/init.d/isc-dhcp-server   OK
/etc/dhcp/dhcpd.conf  FAILED
/etc/logcheck/ignore.d.server/isc-dhcp-server OK
/etc/init/isc-dhcp-server6.conf   OK
/etc/apparmor.d/usr.sbin.dhcpdOK
/etc/init/isc-dhcp-server.confOK


** Attachment added: "isc-dhcp-server-systemctl.txt"
   
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+attachment/4736440/+files/isc-dhcp-server-systemctl.txt

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Steve Langasek]

eproust, since yours was a fresh install the cause of your problem is
unlikely to be the same.  But you may want to install the debsums
package and check whether any of the files on your system differ from
the ones in the package:

$ sudo apt install debsums
$ debsums -e isc-dhcp-server

You may also want to check that your systemd unit is the expected one,
by running the following command and attaching the resulting file:

systemctl show isc-dhcp-server > isc-dhcp-server-systemctl.txt

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Just checked, I have the five capability lines (below) in the
/etc/apparmor.d/usr.sbin.dhcpd of my fresh installed 16.04 and I still
have the issue.

  capability chown,
  capability net_bind_service,
  capability net_raw,
  capability setgid,
  capability setuid,

Ready to try any proposed fix...

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Steve Langasek]

On Wed, Sep 07, 2016 at 12:45:04PM -, Emsi wrote:
> For the record:
> The proper fix for me was to make sure that /etc/apparmor.d/usr.sbin.dhcpd 
> included
>   capability chown,
> along:
>   capability net_bind_service,
>   capability net_raw,
>   capability setgid,
>   capability setuid,

> For some reason it was not there after upgrade.

This is a conffile belonging to the isc-dhcp-server package.  If this line
was missing, presumably you had a modified /etc/apparmor.d/usr.sbin.dhcpd
file before upgrade, and kept your version on upgrade rather than installing
the version from the new package.  Do you have an
/etc/apparmor.d/usr.sbin.dhcpd.dpkg-dist file alongside it?  You might want
to see what differences there are between those two files, and replace your
modified profile with the stock one so that you don't run into upgrade
problems in the future.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Hi,
Yes it really sucks !
For many of us, if we use Ubuntu it is for the ease of use, so moving to 
another Linux distro (with probably a lot of other bugs and less ease of use) 
is not a solution.
If I would accept to lose the ease of use, so I would move to a BSD (OpenBSD 
for the security) ;-)
Please devs, fix this on Ubuntu !

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Emsi]

For the record:
The proper fix for me was to make sure that /etc/apparmor.d/usr.sbin.dhcpd 
included
  capability chown,
along:
  capability net_bind_service,
  capability net_raw,
  capability setgid,
  capability setuid,

For some reason it was not there after upgrade.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Emsi]

I got the same on 16.04 after upgrading from 15.10.
It really sucks nobody can fix it for so many years.
Use Slackware guys.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jared Fernandez]

One thing I've noticed that may be of interest is that this only occurs
for me now during boot up.  If manually started with the command "sudo
systemctl start isc-dhcp-server.service" it starts up fine with no
errors.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jared Fernandez]

I'm also still seeing this on 16.04 LTS with systemd.  This is an
upgrade, not a fresh install.

Aug 26 12:30:52 Host sh[4059]: Can't open /var/lib/dhcp/dhcpd.leases for append.
Aug 26 12:30:52 Host dhcpd[4059]: Copyright 2004-2015 Internet Systems 
Consortium.
Aug 26 12:30:52 Host kernel: [   55.961181] audit: type=1400 
audit(1472239852.640:16): apparmor="DENIED" operation="capable" 
profile="/usr/sbin/dhcpd" pid=4059 comm="dhcpd" capability=1  
capname="dac_override"
Aug 26 12:30:52 Host dhcpd[4059]: All rights reserved.
Aug 26 12:30:52 Host dhcpd[4059]: For info, please visit 
https://www.isc.org/software/dhcp/
Aug 26 12:30:52 Host dhcpd[4059]: Can't open /var/lib/dhcp/dhcpd.leases for 
append.
Aug 26 12:30:52 Host dhcpd[4059]:
Aug 26 12:30:52 Host dhcpd[4059]: If you think you have received this message 
due to a bug rather
Aug 26 12:30:52 Host dhcpd[4059]: than a configuration issue please read the 
section on submitting
Aug 26 12:30:52 Host dhcpd[4059]: bugs on either our web page at www.isc.org or 
in the README file
Aug 26 12:30:52 Host dhcpd[4059]: before submitting a bug.  These pages explain 
the proper
Aug 26 12:30:52 Host dhcpd[4059]: process and the information we find helpful 
for debugging..
Aug 26 12:30:52 Host dhcpd[4059]:
Aug 26 12:30:52 Host dhcpd[4059]: exiting.
Aug 26 12:30:52 Host systemd[1]: isc-dhcp-server.service: Main process exited, 
code=exited, status=1/FAILURE
Aug 26 12:30:52 Host systemd[1]: isc-dhcp-server.service: Unit entered failed 
state.
Aug 26 12:30:52 Host systemd[1]: isc-dhcp-server.service: Failed with result 
'exit-code'.

** Tags added: xenial

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Hi kiko,
It a fresh install of Lubuntu 16.04 xenial.
Linux vlubfs1 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 
x86_64 x86_64 x86_64 GNU/Linux

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Christian Reis]

Thanks, understood. Now is this is a fresh install or an upgrade,
eproust?

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Christian Reis]

I don't think this bug still happens with 16.04 LTS. Can anyone who is
seeing it reproduce from a from-scratch install? There could be an issue
with upgrades, if people are actually still seeing this.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

No my system is using systemd.

dpkg -l|grep systemd gives me an answer :

ii  libpam-systemd:amd64229-4ubuntu7
   amd64system and service manager - PAM module
ii  libsystemd0:amd64   229-4ubuntu7
   amd64systemd utility library
ii  systemd 229-4ubuntu7
   amd64system and service manager
ii  systemd-sysv229-4ubuntu7
   amd64system and service manager - SysV links

dpkg -l|grep upstart doesn't

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Steve Langasek]

The /etc/apparmor.d/usr.sbin.dhcpd profile in 16.04 includes the line:

  /var/lib/dhcp/dhcpd{,6}.leases* lrw,

So there should be no issue with manipulation of the leases file.

The systemd unit in 16.04 also includes a 'chown' command to ensure the
right ownership of the leases file, so there should be no need for any
dac override.

Are you somehow running an Ubuntu 16.04 system with upstart as the init
instead of systemd?  This is what the user in
https://bugs.launchpad.net/ubuntu/+source/isc-
dhcp/+bug/1543794/comments/8 appears to have, and this is not supported.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Rob Traders's fix does not work for me at all.

For memory it was : "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."

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[eproust]

Bug still present in Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-34-generic
x86_64) with version 4.3.3-5ubuntu12.1 of isc-dhcp.

I'll try Rob Traders's fix, but I'm very surprise that Ubuntu leave non fixed 
such a bug for two years !!
The idea could be to move to another distro with a more efficient fixes delay.

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Sven]

Bug still present in Ubuntu 14.04.4 TLS.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Rob Traders]

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.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[MoD]

Apparently so.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[MoD]

Is the update problem resolved?

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Jamie Strandboge]

For other reasons, I had to move the packages to
https://launchpad.net/~jdstrand/+archive/ubuntu/ppa/+packages (my ppa).
I just copied the binaries. I need to look into the upgrade problem and
also fix the init script to do the same as the upstart job, then I'll
regenerate new packages.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Juri Haberland]

No, I just tested a proposed update from Jamie Strandboge's PPA.
See comment #37 and #41.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[padarjohn]

Has this been pushed as an update for trusty?  I'm running 14.04.4 LTS
and have isc-dhcp-server 4.2.4-7ubuntu12.4, and I don't see anything
else available from the repos.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Juri Haberland]

Yes, it seems to fix it, but there is a upgrade-problem:

...
Mar  1 21:52:16 server kernel: [177627.390088] init: isc-dhcp-server main 
process (1218) killed by TERM signal
Mar  1 21:52:20 server dhcpd: Internet Systems Consortium DHCP Server 4.2.4
Mar  1 21:52:20 server dhcpd: Copyright 2004-2012 Internet Systems Consortium.
Mar  1 21:52:20 server dhcpd: All rights reserved.
Mar  1 21:52:20 server dhcpd: For info, please visit 
https://www.isc.org/software/dhcp/
Mar  1 21:52:20 server dhcpd: Internet Systems Consortium DHCP Server 4.2.4
Mar  1 21:52:20 server dhcpd: Copyright 2004-2012 Internet Systems Consortium.
Mar  1 21:52:20 server dhcpd: All rights reserved.
Mar  1 21:52:20 server dhcpd: For info, please visit 
https://www.isc.org/software/dhcp/
Mar  1 21:52:20 server kernel: [177631.988612] type=1400 
audit(1456865540.867:34): apparmor="DENIED" operation="capable" 
profile="/usr/sbin/dhcpd" pid=6043 comm="dhcpd" capability=0  capname="chown"
Mar  1 21:52:20 server dhcpd: Can't chown new lease file: Operation not 
permitted
Mar  1 21:52:20 server kernel: [177631.989335] init: isc-dhcp-server main 
process (6043) terminated with status 1
Mar  1 21:52:20 server kernel: [177631.989343] init: isc-dhcp-server main 
process ended, respawning
...

and so on, until:
Mar  1 21:52:21 server kernel: [177632.161456] init: isc-dhcp-server respawning 
too fast, stopped
Mar  1 21:52:21 server kernel: [177632.248030] type=1400 
audit(1456865541.127:38): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="/usr/sbin/dhcpd" pid=6122 comm="apparmor_parser"
Mar  1 21:52:22 server kernel: [177633.172803] type=1400 
audit(1456865542.055:39): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="/sbin/dhclient" pid=6186 comm="apparmor_parser"
Mar  1 21:52:22 server kernel: [177633.172970] type=1400 
audit(1456865542.055:40): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" 
pid=6186 comm="apparmor_parser"
Mar  1 21:52:22 server kernel: [177633.173109] type=1400 
audit(1456865542.055:41): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=6186 
comm="apparmor_parser"

>From now on "service isc-dhcp-server start" starts the DHCP server and
all seems well. I have currently no idea what's going wrong.

This happend on two servers running Trusty.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Jamie Strandboge]

Rob, the dhcp server issue is bug #1543794 and should be fixed in
4.4.4-5ubuntu9.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jamie Strandboge]

The changes in 4.4.4-5ubuntu9 on xenial are essentially the same as what
I put in the ppa for trusty in terms of the directory permissions (note,
trusty also updates the PARANOIA patch which xenial already had). Can
trusty users comment on if the ppa packages for trusty fixes the issues
for you?

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Rob Whyte]

After installing Xenial server last week I had problems from the get go
with isc-dhcp-server and client. As it is my gateway I have had a great
deal of trouble. Your suggestions in comment 37 seem to address them, am
waiting to see if my next ISP dhcp renewal leaves me disconnected again.
Effected packages for me are 4.4.4-5ubuntu7 and 4.4.4-5ubuntu8.

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Jamie Strandboge]

I came across this bug myself and decided to take a closer look. On trusty, as 
mentioned, we need the extra PARANOIA patch fro 4.3.3. This will chown the 
lease file to dhcpd:dhcpd so that afterwards rotation works. I backported a 
very minimal patch for this. However, the upstart job needed to be adjusted to 
have this instead:
...
# The leases files need to be root:dhcpd for dropping privileges
[ -e /var/lib/dhcp/dhcpd.leases ] || touch /var/lib/dhcp/dhcpd.leases
chown root:dhcpd /var/lib/dhcp /var/lib/dhcp/dhcpd.leases
chmod 775 /var/lib/dhcp
chmod 664 /var/lib/dhcp/dhcpd.leases
...

'capability chown' needs to be added to the apparmor profile. This
allows root to open the file in /var/lib/dhcp without capability
dac_override or capability fowner, allows the fchown of the lease file
to dhcpd:dhcpd, then allows the dhcpd user to manage the leases and
leases~ files. I have test packages in https://launchpad.net/~ubuntu-
security-proposed/+archive/ubuntu/ppa/+packages if people want to try
them out. If they work for affected users, I'll pursue an SRU to trusty-
updates.

I didn't look at xenial very closely, but it doesn't seem to need the
root:dhcpd setup. Upstream must have reordered priv dropping and the
fchown, etc for this to work. While it would be possible to backport
these changes to trusty, I prefer the minimal patch and change to the
upstart job in the ppa for a stable release update.

** Changed in: isc-dhcp (Ubuntu Trusty)
   Status: Confirmed => Triaged

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jamie Strandboge]

Since the debdiff in the ppa goes back to the last trusty-security
update, here is the debdiff of what is in the ppa.

** Patch added: "isc-dhcp_4.2.4-7ubuntu12.5~jdstrand1.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+attachment/4560614/+files/isc-dhcp_4.2.4-7ubuntu12.5~jdstrand1.debdiff

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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:
  Fix Released
Status in isc-dhcp source package in Trusty:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Launchpad Bug Tracker]

This bug was fixed in the package isc-dhcp - 4.3.3-5ubuntu1

---
isc-dhcp (4.3.3-5ubuntu1) xenial; urgency=medium

  * Merge from Debian unstable. Remaining changes:
- Apparmor profiles for dhclient and dhcpd.
- Create user/group dhcpd.
- Create /etc/dhcp/ddns-keys/ for DDNS updates.
- Sanitize environment in dhclient-script.linux.
- Wait for /etc/resolv.conf to be writable in dhclient-script.linux.
- If /etc/ltsp/dhcpd.conf exists, use that instead of /etc/dhcp/dhcpd.conf
- Add an 'option subnet-mask' example to config.
- Increase the timeout to 300 seconds for dhclient.conf (following the
  default added by dhclient-safer-timeout).
- Apport hook for isc-dhcp-client and isc-dhcp-server.
- Upstart jobs for isc-dhcp-server, isc-dhcp-server6, isc-dhcp-relay and
  isc-dhcp-relay6.
- Separate default file for isc-dhcp-relay6.
- Drop isc-dhcp-server/new_auth_behavior question from high to medium
- Remaining Ubuntu patches:
  + dhclient-fix-backoff
  + revert-next-server.
  + multi-ip-addr-per-if.
  + dhclient-safer-timeout.
  + onetry_retry_after_initial_success.
  + dhcp-getifaddrs.patch
  + dhcp-lpf-ib.patch
  + dhcp-improved-xid.patch
  + dhcp-gpxe-cid.patch
  + dhcp-improved-xid-correct-byte-order.patch
  + CVE-2015-8605.patch
  * debian/patches/CVE-2015-8605.patch: refreshed for 4.3.3.
  * debian/patches/system-bind.patch: add -lirs-export to linking libraries
for dhclient, dhcpd, omshell and dhcrelay since omapip now requires it.
  * debian/isc-dhcp-server*.{upstart,service}: don't chown lease files, since
the permissions handling in paranoia mode is now done correctly so that
dhcpd can rotate them. (LP: #1186662)

 -- Mathieu Trudel-Lapierre   Wed, 13 Jan 2016
15:41:45 -0500

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

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8605

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

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Steve Langasek]

** Changed in: isc-dhcp (Ubuntu)
 Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl)

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Jared Fernandez]

** Tags added: wily

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Michel]

Can this please be fixed in Trusty? Seems pretty essential to have a
working DHCP server in an LTS release.

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Ro]

Following up on comment #14, this bug (ISC-Bugs #36978) seems to have
been fixed in ISC DHCP upstream version 4.3.2 [1]:

"   - Enhance the PARANOIA patch to include fchown() the lease file to
  allow it to be manipulated after the server does a chown().
  Thanks to Jiri Popelka at Red Hat for the patch.
  [ISC-Bugs #36978]
"

[1] https://fossies.org/diffs/dhcp/4.3.2_vs_4.3.3/RELNOTES-diff.html

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Stéphane Graber]

** Changed in: isc-dhcp (Ubuntu)
 Assignee: Stéphane Graber (stgraber) => (unassigned)

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[woftor]

I am on Ubuntu 14.04.3 LTS Server.
Bug as described is present.
Solution in #25 works, but still is a workaround.

For the record: Bug was first mentioned 2 years and (neatly) 4 months ago now.
That is amazing.

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Jared Fernandez]

** Tags added: patch

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[John Center]

There are a number of things that need to be addressed with the isc-
dhcp-server package.  I think I've worked through most of the issues,
based on items here  ones I've researched; maybe the maintainer or
someone else could review this?

1)  /etc/default/isc-dhcp-server needs to be updated to enable several
env variables  include one more:

diff -Nru /etc/default/isc-dhcp-server isc-dhcpd-4.2.4/isc-dhcp-server.default 
--- /etc/default/isc-dhcp-server2015-06-19 17:32:49.849591118 -0400
+++ isc-dhcpd-4.2.4/isc-dhcp-server.default 2015-06-19 17:17:36.537576347 
-0400
@@ -7,10 +7,13 @@
 #
 
 # Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
-#DHCPD_CONF=/etc/dhcp/dhcpd.conf
+DHCPD_CONF=/etc/dhcp/dhcpd.conf
+
+# Path to dhcpd's leases file (default: /var/lib/dhcp/dhcpd.leases).
+DHCPD_LEASES=/var/lib/dhcp/dhcpd.leases
 
 # Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
-#DHCPD_PID=/var/run/dhcpd.pid
+DHCPD_PID=/var/run/dhcp-server/dhcpd.pid
 
 # Additional options to start dhcpd with.
 #  Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
@@ -18,4 +21,4 @@


2)  /etc/init/isc-dhcp-server.conf  sources the default isc-dhcp-server file, 
but does not include the correct env variable to find dhcpd.conf.  It should 
also set the extended file attributes as mentioned earlier.  Finally, it should 
use the env variables defined in the default isc-dhcp-server file when starting 
the service:

diff -Nru /etc/init/isc-dhcp-server.conf 
isc-dhcpd-4.2.4/isc-dhcp-server.conf.init 
--- /etc/init/isc-dhcp-server.conf  2014-04-03 17:51:15.0 -0400
+++ isc-dhcpd-4.2.4/isc-dhcp-server.conf.init   2015-06-19 18:38:04.661654434 
-0400
@@ -13,22 +13,17 @@
 fi
 . /etc/default/isc-dhcp-server
 
-if [ -f /etc/ltsp/dhcpd.conf ]; then
-CONFIG_FILE=/etc/ltsp/dhcpd.conf
-else
-CONFIG_FILE=/etc/dhcp/dhcpd.conf
-fi
-if [ ! -f $CONFIG_FILE ]; then
-echo $CONFIG_FILE does not exist! - Aborting...
-echo Please create and configure $CONFIG_FILE to fix the problem.
+if [ ! -f $DHCPD_CONF ]; then
+echo $DHCPD_CONF does not exist! - Aborting...
+echo Please create and configure $DHCPD_CONF to fix the problem.
 stop
 exit 0
 fi
 
-if ! dhcpd -user dhcpd -group dhcpd -t -q -4 -cf $CONFIG_FILE  /dev/null 
21; then
+if ! dhcpd -user dhcpd -group dhcpd -t -q -4 -cf $DHCPD_CONF  /dev/null 
21; then
 echo dhcpd self-test failed. Please fix the config file.
 echo The error was: 
-dhcpd -user dhcpd -group dhcpd -t -4 -cf $CONFIG_FILE
+dhcpd -user dhcpd -group dhcpd -t -4 -cf $DHCPD_CONF
 stop
 exit 0
 fi
@@ -36,12 +31,6 @@
 
 respawn
 script
-if [ -f /etc/ltsp/dhcpd.conf ]; then
-CONFIG_FILE=/etc/ltsp/dhcpd.conf
-else
-CONFIG_FILE=/etc/dhcp/dhcpd.conf
-fi
-
 . /etc/default/isc-dhcp-server
 
 # Allow dhcp server to write lease and pid file as 'dhcpd' user
@@ -50,10 +39,8 @@
 
 # The leases files need to be root:root even when dropping privileges
 [ -e /var/lib/dhcp/dhcpd.leases ] || touch /var/lib/dhcp/dhcpd.leases
-chown root:root /var/lib/dhcp /var/lib/dhcp/dhcpd.leases
-if [ -e /var/lib/dhcp/dhcpd.leases~ ]; then
-chown root:root /var/lib/dhcp/dhcpd.leases~
-fi
+setfacl -dm u:dhcpd:rwx /var/lib/dhcp
+setfacl -m u:dhcpd:rwx /var/lib/dhcp
 
-exec dhcpd -user dhcpd -group dhcpd -f -q -4 -pf 
/run/dhcp-server/dhcpd.pid -cf $CONFIG_FILE $INTERFACES
+exec dhcpd -user dhcpd -group dhcpd -f -4 $OPTIONS -pf $DHCPD_PID -cf 
$DHCPD_CONF -lf $DHCPD_LEASES $INTERFACES
 end script


3)  Checks for upstart should be added to the sysvinit script:

diff -Nru /etc/init.d/isc-dhcp-server isc-dhcpd-4.2.4/isc-dhcp-server.initd 
--- /etc/init.d/isc-dhcp-server 2014-04-03 17:51:15.0 -0400
+++ isc-dhcpd-4.2.4/isc-dhcp-server.initd   2015-06-19 18:20:49.873637698 
-0400
@@ -31,6 +31,13 @@
 
 . /lib/lsb/init-functions
 
+check_for_upstart()
+{
+   if init_is_upstart; then
+   exit $1
+   fi
+}
+
 # Read init script configuration
 [ -f $DHCPD_DEFAULT ]  . $DHCPD_DEFAULT
 
@@ -38,15 +45,18 @@
 DESC=ISC DHCP server
 # fallback to default config file
 DHCPD_CONF=${DHCPD_CONF:-/etc/dhcp/dhcpd.conf}
-# try to read pid file name from config file, with fallback to 
/var/run/dhcpd.pid
+# try to read pid file name from config file, with fallback to
+/var/run/dhcpd.pid
 if [ -z $DHCPD_PID ]; then
-   DHCPD_PID=$(sed -n -e 's/^[ \t]*pid-file-name[ \t]*(.*)[ 
\t]*;.*$/\1/p'  $DHCPD_CONF 2/dev/null | head -n 1)
+   DHCPD_PID=$(sed -n -e 's/^[ \t]*pid-file-name[ \t]*\(.*\)[
+\t]*;.*$/\1/p'  $DHCPD_CONF 2/dev/null | head -n 1)
 fi
 DHCPD_PID=${DHCPD_PID:-/var/run/dhcpd.pid}
 
 test_config()
 {
-   if ! /usr/sbin/dhcpd -t $OPTIONS -q -cf $DHCPD_CONF  /dev/null 21; 
then
+   if ! /usr/sbin/dhcpd -t $OPTIONS -q -cf $DHCPD_CONF  /dev/null 21;
+then

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

[Falk]

Any status on this?

I am pushing a cluster into production with this bug.
Is the only way to fix this by using acl'a as Ian McMichael suggested?

service isc-dhcp-server stop
setfacl -dm u:dhcpd:rwx /var/lib/dhcp
setfacl -m u:dhcpd:rwx /var/lib/dhcp
service isc-dhcp-server start

No official fix out there?

--
Regards Falk

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You received this bug notification because you are a member of Ubuntu
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Title:
  isc-dhcp-server fails to renew lease file

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[no!chance]

This bug exists since 2 years ... I am sure this will never been fixed
in ubuntu.  ... since you switch to another distro!

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[John Center]

We're having the same problem running dhcpd under trusty.  As a
workaround, if we make the file attribute changes in #25, is this the
only thing that needs to be done?  Can we also change chown root:root to
dhcpd:dhcpd for /var/lib/dhcp/* in isc-dhcp-server.conf, too?

Thanks.

-John

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You received this bug notification because you are a member of Ubuntu
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Title:
  isc-dhcp-server fails to renew lease file

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Linus Nilsson]

I'm running Ubuntu Server 14.04.2 LTS and have the same problem.
After I installed the acl-package I'm now using the solution suggested by Ian 
McMichael and it is working.

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Seth Arnold]

Nice find Anton; in the little I had inspected the code, I thought it
would be solved by moving the db open until after the privileges had
been dropped, but that would have significantly complicated the error
handling for broken configurations/databases.

This might still require the CAP_CHOWN capability in the AppArmor
profile, but at least this would be squashed.

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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Anton Cohen]

This was fixed in Fedora 18 in 2012, works with SELinux, same version of
dhcp-server (4.2.4) as trusty. Maybe a similar method can be used with
AppArmor?

https://bugzilla.redhat.com/show_bug.cgi?id=866714
http://pkgs.fedoraproject.org/cgit/dhcp.git/tree/dhcp-paranoia.patch

** Bug watch added: Red Hat Bugzilla #866714
   https://bugzilla.redhat.com/show_bug.cgi?id=866714

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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Brad Marshall]

** Tags added: canonical-bootstack

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

Status in isc-dhcp package in Ubuntu:
  Triaged
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Ian McMichael]

I've given up with my solution in #9 as it did not work.  I'm still
using 14.04 LTS systems and now employ the following fix instead:

service isc-dhcp-server stop
setfacl -dm u:dhcpd:rwx /var/lib/dhcp
setfacl -m u:dhcpd:rwx /var/lib/dhcp
service isc-dhcp-server start

Note: For this to work you must have acl support on the root filesystem
(assuming that's where /var/lib/dhcp lives on your configuration).  This
is a matter of adding the acl option to the mount line in /etc/fstab.

I have been running this for a couple of months now and it seems to do
the trick on several servers.

Hope it helps someone?

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You received this bug notification because you are a member of Ubuntu
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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Simon McNair]

This is still ongoing.
I've tried 

- /etc/init/isc-dhcp-server.conf

   # The leases files need to be root:root even when dropping privileges
[ -e /var/lib/dhcp/dhcpd.leases ] || touch /var/lib/dhcp/dhcpd.leases
#SM 2015-05-08 chown root:root /var/lib/dhcp /var/lib/dhcp/dhcpd.leases
chown dhcpd:dhcpd /var/lib/dhcp /var/lib/dhcp/dhcpd.leases
if [ -e /var/lib/dhcp/dhcpd.leases~ ]; then
#SM 2015-05-08chown root:root /var/lib/dhcp/dhcpd.leases~
echo Chown DHCPD to fix brokenness
chown dhcpd:dhcpd /var/lib/dhcp/dhcpd.leases~
fi

- /etc/init.d/isc-dhcp-server
...
start)
test_config
log_daemon_msg Starting $DESC $NAME
log_daemon_msg chown dhcpd /var/lib/dhcp/*
# SM 2015-08-05 chown dhcpd /var/lib/dhcp/*
chown dhcpd /var/lib/dhcp/*
...

restart | force-reload)
test_config
$0 stop
sleep 2
$0 start
if [ $? != 0 ]; then
exit 1
fi
#SM 1015-05-08
chown dhcpd /var/lib/dhcp/*
;;
...

-.) Apparmor in to complain mode
mv /etc/apparmor.d/usr.sbin/usr.sbin.dhcpd /etc/apparmor.d/force-complain/


-.)/lib/systemd/system/isc-dhcp-server.service
#   SM 2015-05-08 chown root:root /var/lib/dhcp /var/lib/dhcp/dhcpd.leases*; \
chown dhcpd:dhcpd /var/lib/dhcp /var/lib/dhcp/dhcpd.leases*; \

followed by systemctl daemon-reload

and modifying systemd finally broke it:

systemctl status isc-dhcp-server.service 
● isc-dhcp-server.service - ISC DHCP IPv4 server
   Loaded: error (Reason: Invalid argument)
   Active: active (running) since Fri 2015-05-08 09:42:02 BST; 14min ago
 Docs: man:dhcpd(8)
 Main PID: 14253 (dhcpd)
   CGroup: /system.slice/isc-dhcp-server.service
   └─14253 dhcpd -user dhcpd -group dhcpd -f -4 -pf 
/run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf eth0...

May 08 09:42:02 here dhcpd[14253]: Server starting service.
May 08 09:42:02 here sh[14253]: Listening on 
LPF/eth0/00:9c:02:a0:38:67/192.168.1.0/24
May 08 09:42:02 here sh[14253]: Sending on   
LPF/eth0/00:9c:02:a0:38:67/192.168.1.0/24
May 08 09:42:02 here sh[14253]: Sending on   Socket/fallback/fallback-net
May 08 09:42:32 here systemd[1]: 
[/lib/systemd/system/isc-dhcp-server.service:17] Trailing garbage, ignoring.
May 08 09:42:32 here systemd[1]: isc-dhcp-server.service lacks both ExecStart= 
and ExecStop= setting. Refusing.
May 08 09:43:04 here systemd[1]: 
[/lib/systemd/system/isc-dhcp-server.service:17] Trailing garbage, ignoring.
May 08 09:43:04 here systemd[1]: isc-dhcp-server.service lacks both ExecStart= 
and ExecStop= setting. Refusing.
May 08 09:46:58 here systemd[1]: 
[/lib/systemd/system/isc-dhcp-server.service:17] Trailing garbage, ignoring.
May 08 09:46:58 here systemd[1]: isc-dhcp-server.service lacks both ExecStart= 
and ExecStop= setting. Refusing.
root@here:/etc/init.d# 

PLEASE can someone tell me how this has persisted since 2013 ?!?!?!

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You received this bug notification because you are a member of Ubuntu
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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jared Fernandez]

Issue persists in 15.04 Vivid

** Tags added: vivid

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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Alberto Salvia Novella]

** Changed in: isc-dhcp (Ubuntu)
   Importance: Undecided = High

** Changed in: isc-dhcp (Ubuntu Trusty)
   Importance: Undecided = High

-- 
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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[HansLambermont]

This issue persists in 14.04.2 LTS

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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jasper Knockaert]

Is there a relation with https://bugs.launchpad.net/ubuntu/+source/isc-
dhcp/+bug/1417658?

-- 
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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Launchpad Bug Tracker]

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

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

-- 
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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
Status in isc-dhcp source package in Trusty:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Brian Murray]

** Tags added: trusty

-- 
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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
Status in isc-dhcp source package in Trusty:
  New

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Brian Murray]

** Also affects: isc-dhcp (Ubuntu Trusty)
   Importance: Undecided
   Status: New

-- 
You received this bug notification because you are a member of Ubuntu
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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
Status in isc-dhcp source package in Trusty:
  New

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[DigiAngel]

And continuing to see this:

Feb 27 05:43:17 gateway dhcpd: Can't create new lease file: Permission denied
Feb 27 05:43:17 gateway kernel: [ 4703.128481] type=1400 
audit(1425040997.320:41): apparmor=DENIED operation=capable 
profile=/usr/sbin/dhcpd pid=2189 comm=dhcpd capability=1  
capname=dac_override

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Robert Sander]

Workaround from http://ubuntuforums.org/showthread.php?t=2141740page=2


sudo setfacl -dm u:dhcpd:rwx /var/lib/dhcp
sudo setfacl -m u:dhcpd:rwx /var/lib/dhcp

-- 
You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[atimonin]

I've created a bug-report in www.isc.org:
Your ticket has been assigned an ID of [ISC-Bugs #36978].

-- 
You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Brian Conry]

Can someone please confirm my understanding of this issue?

a) Ubuntu has configured dhcpd to drop root privileges
b) Ubuntu has added logic to dhcpd.conf to force the ownership of dhcpd.leases 
to root:root
c) Ubuntu is managing the ownership (and permissions?) of the directory in 
which dhcpd.leases lives, keeping it as root:root

We at ISC are not really clear what we're supposed to do with this.

Thanks,
Brian Conry
ISC Support

-- 
You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1186662] Re: isc-dhcp-server fails to renew lease file

[Brian Conry]

On my second re-read of this thread I made my spot check and noticed


The proper fix is to have dhcpd open the leases file as user dhcpd during start 
and not root and having /var/lib/dhcp/ and the leases file belong to 
dhcpd:dhcpd.


which implies (correctly) that dhcpd opens dhcpd.leases before dropping
privileges, and also implies that maybe the ownership shennanigans are
due to dhcpd's failure to open the leases file as the non-privileged
user.

This is done because, as things are currently structured, dhcpd
initiates the failover relationships (which requires data from the
dhcpd.leases file) at the same time as it opens the listening sockets
(which requires privileges in the default configuration).

There may also be other information dependencies that I haven't noticed
yet.

We're evaluating our options at this point.

It will be helpful to know if the forcing of ownership to root:root of
the files and directory are being done as an attempt to cope with
dhcpd's behavior or if that is construed as a feature and the desired
state.

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You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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

[Jamie Strandboge]

As Michael said, this needs a code change to dchpd to open the files
correctly.

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1186662/+subscriptions

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