[ntp:questions] Unable to use SUSE Linux for time synchronization.

Uwe Klein uwe_klein_habertwedt at t-online.de
Wed Feb 14 12:29:10 UTC 2007


sandy wrote:


> Do I need to be able to ping to these servers ? I am confused as
> firewall is disabled but not able to ping.
I have my doubts about that.
being able to use a browers says only that traffic to port 80/TCP works.

On pings: you will not be able to ping the *.redhat.com boxes.
( well at least i get  From msfc.tpa.redhat.com (66.77.185.6): icmp_seq=2 Packet filtered )

> 
> The output of, "ntpq -p" is,
> 
>      remote           refid      st t when poll reach   delay
> offset  jitter
> ==============================================================================
>  clock1.redhat.c .INIT.          16 u    -   64    0    0.000    0.000
> 4000.00
>  clock2.redhat.c .INIT.          16 u    -   64    0    0.000    0.000
> 4000.00
>  ns1.tuxfamily.n .INIT.          16 u    -   64    0    0.000    0.000
> 4000.00
>  time.nist.gov   .INIT.          16 u    -   64    0    0.000    0.000
> 4000.00

None of the servers you configured have been reached ( reach=0 ).
Which would fit with "no suitable servers found" error.

What does ( as root )

	rcSuSEfirewall2 status

tell you?

What does

	traceroute clock1.redhat.com

tell you?
should end with
	... lots of hops
	<lasthop>  66.77.185.6(N!)  168.890 ms * *
( msfc.tpa.redhat.com, gobbling up icmp stuff )


uwe




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