NTP sample scenarios

This first scenario would be used when configuring a single host to use NTP. The host seattle.mynet.com is expected to run as a stratum 2 server because it is configured to get the time from two time servers with radio clocks, ntp1.ossi.com and ntp.olivetti.com. The xntpd daemon stores the frequency error of the clock on seattle.mynet.com in /etc/driftfile. This is a good example to use if you just want to get xntpd up and running quickly. Note that it can take a day or two for a host to synchronize with a time server.

Here is the ntp.conf file for seattle.mynet.com:

   #
   # Peer configuration for 132.147.246.11 (seattle.mynet.com)
   #
   peer 192.240.4.1       # ntp1.ossi.com
   peer 129.189.134.6     # ntp.olivetti.com
   

   driftfile /etc/driftfile

This next scenario is the complete configuration for mynet.com. The configuration files here configure mynet.com to match the topology discussed in ``NTP guidelines''. All hosts can be configured dynamically with xntpd. There are no restrictions on which hosts can be designated as time servers in a given host's configuration file.

Here is the ntp.conf file for acapulco:

   #
   # Peer configuration file for 132.147.246.16 (acapulco.mynet.com)
   #
   peer 128.115.14.97    # clock.llnl.gov
   peer 16.1.0.22        # clepsydra.dec.com
   peer seattle.mynet.com
   peer moscow.mynet.com
  
  
  
   

   broadcast 132.147.246.255
   

   driftfile  /etc/ntp.drift
   resolver   /etc/xntpres
   keys       /etc/ntp.keys
   requestkey  65534
   controlkey  65535

   2313      M    APassword
   65534     M    NoSecret
   65535     M    BadKey

   #
   # Peer configuration for seattle (132.147.246.11)
   #
   peer 129.189.134.6  # ntp.olivetti.com
   peer 192.240.4.1    # ntp1.ossi.com
   peer acapulco
   peer moscow
  
  
  
   

   broadcast 132.147.246.255
   

   driftfile  /etc/ntp.drift
   resolver   /etc/xntpres
   keys       /etc/ntp.keys
   requestkey  65534
   controlkey  65535

   2313      M    APassword
   65534     M    NoSecret
   65535     M    BadKey

   #
   # Peer configuration file for 132.147.246.7
   #                             moscow.mynet.com
   #
   peer 130.43.2.2         # apple.com
   peer 192.52.195.10      # norad.arc.nasa.gov
   peer seattle.mynet.com
   peer acapulco.mynet.com
  
  
  
   

   broadcast 132.147.246.255
   

   driftfile  /etc/ntp.drift
   resolver   /etc/xntpres
   keys       /etc/ntp.keys
   requestkey  65534
   controlkey  65535

   2313      M    APassword
   65534     M    NoSecret
   65535     M    BadKey

   # Peer configuration used by all stratum 3
   #      servers at mynet.com
   #
   broadcastclient  yes
   broadcastdelay   0.0500
   driftfile        /etc/ntp.drift
   resolver         /etc/xntpres
   keys             /etc/ntp.keys
   requestkey  65534
   controlkey  65535

   2313      M    APassword
   65534     M    NoSecret
   65535     M    BadKey

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