[ale] NTP

David Corbin dcorbin at imperitek.com
Mon Oct 7 08:18:33 EDT 2002


Right, but on most systems, 127.0.0.1 actually exists as an interface (lo).

Mike Panetta wrote:

>I think what he was trying to ask is, why 127.127.1.0 instead of the
>more normally used 127.0.0.1?  Both addresses are treated the same by
>the IP stack AFAIK....
>
>Mike
>
>On Sun, 2002-10-06 at 14:58, Robert Heaven wrote:
>  
>
>>Yes, there is significance... That's what allows ntpd to sync to it's
>>local clock if it can't reach the one specified in the first "server"
>>statement.
>>
>>
>>On Sun, 2002-10-06 at 09:22, David Corbin wrote:
>>    
>>
>>>Robert Heaven wrote:
>>>
>>>      
>>>
>>>>Your time server (call it "server_A") should have an ntpd.conf similar
>>>>to this:
>>>>
>>>>server  tock.usno.navy.mil
>>>>server  127.127.1.0
>>>>fudge   127.127.1.0   stratum 12
>>>>driftfile  /var/log/ntp.drift
>>>>statsdir  /var/log/
>>>> 
>>>>
>>>>        
>>>>
>>>Is there any signifcance to 127.127.1.0?  Any reason not to uset the 
>>>"standard" localhost IP?
>>>
>>>      
>>>
>>>>The second "server" statement allows the ntpd daemon to sync to itself
>>>>so the other hosts won't give you that message. 
>>>>
>>>>Then, all your other hosts should have an ntpd.conf file like this:
>>>>
>>>>server  server_A.nowhere.net (or use you IP address)
>>>>driftfile  /var/log/ntp.drift
>>>>statsdir  /var/log/
>>>>
>>>>
>>>>
>>>>On Sat, 2002-10-05 at 13:29, David Corbin wrote:
>>>> 
>>>>
>>>>        
>>>>
>>>>>When I do "ntpdate A", I get "no server suitable for synchronization found".
>>>>>
>>>>>Robert L. Harris wrote:
>>>>>
>>>>>   
>>>>>
>>>>>          
>>>>>
>>>>>>I just run xntpd and then tell my clients that my ntp server is a
>>>>>>master.  Been working great for about a year now.
>>>>>>
>>>>>>Thus spake David Corbin (dcorbin at imperitek.com):
>>>>>>
>>>>>>
>>>>>>
>>>>>>     
>>>>>>
>>>>>>            
>>>>>>
>>>>>>>Date: Sat, 05 Oct 2002 10:15:25 -0400
>>>>>>>From: David Corbin <dcorbin at imperitek.com>
>>>>>>>To: ale at ale.org
>>>>>>>Subject: [ale] NTP
>>>>>>>
>>>>>>>I'm trying to setup a local server to provide a reasonably accurate time 
>>>>>>>for machines on my LAN.  For years I've just been sending all my 
>>>>>>>machines out to "public servers" (stratum-2, I think), and now I want 
>>>>>>>only one machine(A) to do that, and other local machines to ask A for 
>>>>>>>the time.
>>>>>>>
>>>>>>>I can't figure out what I need to do on A to make it respond to NTP as a 
>>>>>>>server.   Anyone know?
>>>>>>>
>>>>>>>Thanks
>>>>>>>David
>>>>>>>
>>>>>>>
>>>>>>>---
>>>>>>>This message has been sent through the ALE general discussion list.
>>>>>>>See http://www.ale.org/mailing-lists.shtml for more info. Problems should 
>>>>>>>be sent to listmaster at ale dot org.
>>>>>>>  
>>>>>>>
>>>>>>>       
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>>:wq!
>>>>>>---------------------------------------------------------------------------
>>>>>>Robert L. Harris                
>>>>>>                             
>>>>>>DISCLAIMER:
>>>>>>    These are MY OPINIONS ALONE.  I speak for no-one else.
>>>>>>FYI:
>>>>>>perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
>>>>>>
>>>>>>
>>>>>>     
>>>>>>
>>>>>>            
>>>>>>
>>>>>---
>>>>>This message has been sent through the ALE general discussion list.
>>>>>See http://www.ale.org/mailing-lists.shtml for more info. Problems should be 
>>>>>sent to listmaster at ale dot org.
>>>>>
>>>>>   
>>>>>
>>>>>          
>>>>>
>>>> 
>>>>
>>>>        
>>>>
>>>
>>>      
>>>
>>
>>---
>>This message has been sent through the ALE general discussion list.
>>See http://www.ale.org/mailing-lists.shtml for more info. Problems should be 
>>sent to listmaster at ale dot org.
>>
>>    
>>
>
>  
>




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