Re: hwclock and audit system

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On Fri, Jul 29, 2005 at 11:39:41PM +0200, Alexander Dalloz wrote:

>>  Am Fr, den 29.07.2005 schrieb Berna Massingill um 21:53:
>>  
>>  > >>  > > hwclock --show | cat
>>  > >>  > >
>>  > >>  > > Does that help?
>>  > 
>>  > It did for me (newly-installed FC4 system on Dell Dimension,
>>  > hwclock from util-linux-2.12p-9.5).

[ snip ]

>>  > >>  > No change.  Why do you think it would?
>>  > 
>>  > I'm interested in the explanation as well -- why piping the output
>>  > to another command makes a difference.  A colleague also says "ask
>>  > him whether he found this by accident or whether he knew it would
>>  > work because of some deep understanding ...."  So -- ?
>>  
>>  Fair question. I "know" it from
>>  
>>  https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=150153

Aha. 

I was puzzled for a bit about how selinux would come into things on
my system, since I thought during installation I had said not to
enable that, but in fact /etc/selinux/config had SELINUX=enforcing,
and when I changed that to "permissive", hwclock began producing
output when it didn't before.

This also explains the difference in behavior between my FC4 system
and another one to which I have access -- the other system has
SELINUX=disabled.

Perhaps this will be useful information to others on the list.

>>  > >>  hwclock is in the list of daemons covered by the targeted policy. This
>>  > >>  means hwclock may or may not have control over the terminal. 
>>  > 
>>  > Would I be right in guessing that this explains why putting the
>>  > executable in a different directory changes the results??
>>  > 
>>  > >>  Though it
>>  > >>  seems this issue is a different one (on the German speaking Fedora list
>>  > >>  the cat pipe helped recently[1]).
>>  > >>  
>>  > >>  Alexander
>>  > >>  
>>  > >>  [1]
>>  > >>  https://www.redhat.com/archives/fedora-de-list/2005-June/msg00109.html
>>  > 
>>  > If only I read German!
>>  
>>  Should have been just a reference, as the thread too shows a strace
>>  output.

Fair enough.

-- blm


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