Fedora 7: a problem with ntp ?

Gene Heskett gene.heskett at verizon.net
Sat Sep 8 09:28:42 UTC 2007


On Saturday 08 September 2007, Andrew Junev wrote:
>Saturday, September 8, 2007, 12:37:01 PM, you wrote:
>> And that fairly screams that its an selinux problem, one that setting it
>> to permissive mode does NOT fix in my experience.
>
>I disabled selinux already during the installation.
>
>> Append to the end of the kernel arguments line in your grub.conf,
>> 'selinux=0' without the quotes and reboot.  If that fixes it, throw it
>> back at the selinux mailing list where Stephen Smalley hangs out.
>
>Hmmm... Although I disabled selinux, I didn't have 'selinux=0' in my
>grub.conf. Probably it gets disabled somewhere else.

No, that is the only way to shut it completely off.  This is a known FC7 
problem.  Setting it to be permissive as you did in the install is not 
sufficient to allow ntp to work.

>Anyway, I added 
>this parameter and rebooted the system. Still no changes in ntpd
>behavior.
>
>Sep  8 12:56:10 frontend_light ntpdate[1943]: step time server 66.187.233.4
> offset -65.237699 sec Sep  8 12:56:10 frontend_light ntpd[1945]: ntpd
> 4.2.4p2 at 1.1495-o Tue Aug 21 14:07:56 UTC 2007 (1) Sep  8 12:56:10
> frontend_light ntpd[1946]: precision = 1.000 usec
>Sep  8 12:56:10 frontend_light ntpd[1946]: Listening on interface #0
> wildcard, 0.0.0.0#123 Disabled Sep  8 12:56:10 frontend_light ntpd[1946]:
> Listening on interface #1 wildcard, ::#123 Disabled Sep  8 12:56:10
> frontend_light ntpd[1946]: Listening on interface #2 lo, ::1#123 Enabled
> Sep  8 12:56:10 frontend_light ntpd[1946]: Listening on interface #3 eth0,
> fe80::230:5ff:fe22:857#123 Enabled Sep  8 12:56:10 frontend_light
> ntpd[1946]: Listening on interface #4 lo, 127.0.0.1#123 Enabled Sep  8
> 12:56:10 frontend_light ntpd[1946]: Listening on interface #5 eth0,
> 172.23.0.133#123 Enabled Sep  8 12:56:10 frontend_light ntpd[1946]: kernel
> time sync status 0040 Sep  8 12:56:11 frontend_light ntpd[1946]: frequency
> initialized 0.000 PPM from /var/lib/ntp/drift
>
>
>On my Fedora 6 machine ntpd is working fine:
>
> 6 Sep 23:13:05 ntpd[2770]: synchronized to 128.10.252.10, stratum 2
> 7 Sep 03:20:43 ntpd[2770]: synchronized to 130.89.164.77, stratum 2
> 7 Sep 04:46:10 ntpd[2770]: synchronized to 128.10.252.10, stratum 2
> 7 Sep 06:47:57 ntpd[2770]: synchronized to 130.89.164.77, stratum 2
> 7 Sep 07:53:58 ntpd[2770]: synchronized to 128.10.252.10, stratum 2
>
>
>[root at frontend_light ~]# ntpq -p
>     remote           refid      st t when poll reach   delay   offset 
> jitter
> ===========================================================================
>=== balthazar.tihld 192.36.144.22    2 u   15   64  377   41.875  -3341.6
> 1648.40 bbs.csie.ncyu.e 220.130.158.71   3 u   13   64  377  364.927 
> -3354.8 1646.82 hobbes.macvaerk 193.162.142.71   3 u   14   64  377 
> 128.439  -3332.9 1608.39 [root at frontend_light ~]# ntpstat
>unsynchronised
>  time server re-starting

And why is it restarting?  I don't know the answer there, but someplace in a 
log, there should be a clue.


>   polling server every 64 s
>[root at frontend_light ~]#



-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Never underestimate the bandwidth of a station wagon full of tapes.
		-- Dr. Warren Jackson, Director, UTCS




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