dhcp6.leases permission denied

김무성 kimms at infosec.co.kr
Wed May 4 02:04:35 UTC 2011

There is no SELinux on ubuntu.
There is no /var/log/audit

If I use ipv4, it's run.
But I use ipv6, permission error.


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-----Original Message-----
From: dhcp-users-bounces+kimms=infosec.co.kr at lists.isc.org [mailto:dhcp-users-bounces+kimms=infosec.co.kr at lists.isc.org] On Behalf Of Peter Rathlev
Sent: Tuesday, May 03, 2011 3:39 PM
To: Users of ISC DHCP
Subject: Re: dhcp6.leases permission denied

On Tue, 2011-05-03 at 11:41 +0900, 김무성 wrote:
> Can't open lease database /var/lib/dhcp/dhcpd6.leases: Permission
> denied --

Could you have some kind of (misconfigured) SELinux (or equivalent)
blocking the access? I'm not familiar with Ubuntu, but SELinux would log
to something like /var/log/audit/audit.log on Redhat systems at least.

Assuming it's SELinux, what does "ls -Z /var/lib/dhcp" say? Does running
"setenforce 0" as root help you start the daemon? (Enable it again with
"setenforce 1".)

And by the way: Don't make the file world writeable (0666) unless you're
looking for security related trouble. Default 0644 is fine, and you
could even remove world read if you wanted.


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