[ntp:questions] Re: unreachable servers

Adamiec, Larry Ladamiec at kentlaw.edu
Fri May 27 16:07:39 UTC 2005


OK.  I'll check out the things you said to look at.

Thanks for the suggestions.

Larry

> -----Original Message-----
> From: questions-bounces at lists.ntp.isc.org 
> [mailto:questions-bounces at lists.ntp.isc.org] On Behalf Of 
> Richard B. Gilbert
> Sent: Friday, May 27, 2005 11:03
> To: questions at lists.ntp.isc.org
> Subject: [ntp:questions] Re: unreachable servers
> 
> 
> Adamiec, Larry wrote:
> 
> >I am running a stratum 3 server on Solaris 9.  My config 
> file contains
> >the following entries:
> >
> >server  ntp-1.cso.uiuc.edu
> >server  gilbreth.ecn.purdue.edu
> >server  ntp1.kansas.net
> >server  blade.avnf.com
> >
> >When I run the ntpq command, I receive the following results:
> >
> >ntpq> associations
> >ind assID status  conf reach auth condition  last_event cnt
> >===========================================================
> >  1 43644  9614   yes   yes  none  sys.peer   reachable  1
> >  2 43645  8000   yes    no
> >  3 43646  8000   yes    no
> >  4 43647  9414   yes   yes  none   synchr.   reachable  1
> >
> >ntpq> peers
> >     remote           refid      st t when poll reach   
> delay   offset
> >disp
> >=============================================================
> ===========
> >======
> >*ntp-1.gw.uiuc.e truechimer.cso.  2 u  202 1024  377     
> 7.64   -0.035
> >0.43
> > gilbreth.ecn.pu 0.0.0.0         16 -    - 1024    0     
> 0.00    0.000
> >16000.0
> > triangle.kansas 0.0.0.0         16 -    - 1024    0     
> 0.00    0.000
> >16000.0
> >+blade.avnf.com  hora.cs.tu-berl  2 u  462 1024  377    
> 29.85   -9.631
> >20.16
> >
> >Why would these servers be unreachable?  A ping from server 
> shows them
> >to be alive and working.
> >
> >Thanks for any help.
> >
> >Larry
> >  
> >
> Does your config file contain any restrict statements?
> 
> It's possible that a firewall is blocking port 123 somewhere 
> along the 
> line.  AFAIK there is no good reason to do so, but some networking 
> people start by blocking everything and allowing only what they think 
> they need..
> 
> It's also possible that the server is refusing connections 
> from you for 
> some reason.   Contact the administrator and inquire about 
> the problem 
> AFTER you have done all possible to make sure the problem is 
> not on your 
> end.
> 
> FWIW both gilbreth.ecn.purdue.edu and ntp1.kansas.net are 
> reachable from 
> my site.  I used ntpdate -du which simply queries the server 
> and reports 
> what it would do if I permitted it to adjust my clock.  Both servers 
> responded promptly with times in good agreement with the 
> servers I use 
> regularly.   It seems likely, therefore, that the problem IS 
> at your end.
> _______________________________________________
> questions mailing list
> questions at lists.ntp.isc.org
> https://lists.ntp.isc.org/mailman/listinfo/questions
> 



More information about the questions mailing list