ntpd drift.TEMP file

Lars Gullik Bjønnes larsbj at gullik.net
Sun Mar 6 21:45:27 UTC 2005


"Chuck R. Anderson" <cra at WPI.EDU> writes:

| On Sun, Mar 06, 2005 at 07:03:26PM +0100, Lars Gullik Bjønnes wrote:
>> I have the drift file in /var/lib/ntp/drift, but I get selinux errors
>> for drift.TEMP:
>> 
>> Mar  6 18:51:26 slabber ntpd[26387]: can't open
>> /var/lib/ntp/drift.TEMP: Permission denied
>> Mar  6 18:51:26 slabber kernel: audit(1110131486.894:0): avc:  denied
>> { dac_override } for  pid=26387 exe=/usr/sbin/ntpd capability=1
>> scontext=root:system_r:ntpd_t tcontext=root:system_r:ntpd_t
>> tclass=capability
>> 
>> This is an updated FC3 system.
>
| What are the DAC unix permissions bits and owner/group on the file?

Of the directory you mean? It is creating the file in the first place
that fails.

 ls -la /var/lib/ntp/
total 24
drwxr-xr-x   2 ntp  ntp  4096 Mar  6 22:20 .
drwxr-xr-x  14 root root 4096 Feb 22 17:38 ..
-rw-r--r--   1 ntp  ntp     7 Mar  6 22:20 drift

| I
| am no expert in SELinux, but that AVC sounds to me like the standard
| unix permissions are disallowing access to the file.

>From /etc/selinux/targeted/contexts/file_contexts it seems this should
be allowed. But I am not familiar with the format:

grep -nr drift *
files/file_contexts.pre:676:/var/lib/ntp(/.*)?
system_u:object_r:ntp_drift_t
files/file_contexts.pre:677:/etc/ntp/data(/.*)?
system_u:object_r:ntp_drift_t
files/file_contexts:676:/var/lib/ntp(/.*)?
system_u:object_r:ntp_drift_t
files/file_contexts:677:/etc/ntp/data(/.*)?
system_u:object_r:ntp_drift_t

-- 
	Lgb




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