RE: [chrony-users] chronyc always exits 0 without any output

Interestingly enough, I tried to run sealert to see if I could find any errors and it throws an error itself:

policydb version 31 does not match my version range 15-30

So something is up with SELinux policy in OL 7.5...

--Matthew Wilkinson

From: Parker, Michael D. [mailto:Michael.D.Parker@xxxxxx]
Sent: Thursday, April 19, 2018 14:33
To: chrony-users@xxxxxxxxxxxxxxxxxxxx
Subject: RE: [chrony-users] chronyc always exits 0 without any output

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Have any of you tried setting SELinux into permissive mode?

Does chronyc run as root ok? But not as a normal user?

***** ***** *****

Michael D. Parker

General Atomics – ElectroMagnetics Systems Group (EMS)

Michael.d.parker@xxxxxx <<<<< NOTE: Remember to include my middle initial >>>>>

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From: Wilkinson, Matthew <MatthewWilkinson@xxxxxxxxxxxxxxxxx>
Sent: Thursday, April 19, 2018 12:19
To: chrony-users@xxxxxxxxxxxxxxxxxxxx
Subject: -EXT-RE: [chrony-users] chronyc always exits 0 without any output

tried stopping firewalld and then running chronyc sources but it just exits with 0 like always. dang.

--Matthew Wilkinson

From: Burton, John [mailto:jburton@xxxxxxxx]
Sent: Thursday, April 19, 2018 14:17
To: chrony-users@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [chrony-users] chronyc always exits 0 without any output

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I had an issue something like that with a different distribution of Linux, but I recall it taking longer to return - like it was timing out on something. Try temporarily disabling the firewall on the computer and see if that changes the behavior. If that works, then maybe you need to open the port in the firewall?

John

On Thu, Apr 19, 2018 at 2:57 PM, Wilkinson, Matthew <MatthewWilkinson@xxxxxxxxxxxxxxxxx> wrote:

This bit is interesting:

from strace:

unlink("/var/run/chrony/chronyc.11490.sock") = -1 ENOENT (No such file or directory)
bind(3, {sa_family=AF_LOCAL, sun_path="/var/run/chrony/chronyc.11490.sock"}, 110) = 0
chmod("/var/run/chrony/chronyc.11490.sock", 0666) = 0
connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/chrony/chronyd.sock"}, 110) = 0
fstat(0, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 3), ...}) = 0
ioctl(0, TCGETS, 0x7fffeb781dc0) = -1 ENOTTY (Inappropriate ioctl for device)
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f8cca7000
read(0, "", 4096) = 0
getsockname(3, {sa_family=AF_LOCAL, sun_path="/var/run/chrony/chronyc.11490.sock"}, [37]) = 0

--Matthew Wilkinson

-----Original Message-----
From: Bill Unruh [mailto:unruh@xxxxxxxxxxxxxx]
Sent: Thursday, April 19, 2018 13:34
To: chrony-users@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [chrony-users] chronyc always exits 0 without any output

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**********************************************************************

On Thu, 19 Apr 2018, Wilkinson, Matthew wrote:

>
> I recently installed an Oracle Linux 7.5 servers with Chrony 3.2. The
> chronyd will start up, read the config, and synchronize just fine (according to the syslogs).

Is chronyd actually running?
ps auxww|grep chronyd |grep -v grep

>
>
>
> However, when I run chronyc, no matter what options I give it (even
> -d) and even if I give it no options, it just exits with return 0 and no output.

That is very strange. Even if chronyd is not running it should start up.

>
>
> Anyone run into this before or know of a way I can find out why it’s
> doing this? I’ve ran an strace on it, and it just quickly runs through some calls and exits 0.

"some calls" is a bit vague.
Does
chronyc -d
give you any hints?

>
>
>
> Thanks,
>
>
>
> Matthew Wilkinson
>
>
>
>
>

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