[EMAIL PROTECTED] wrote: > I am located on Miami Florida , 33172. At the moment I am syncronized with > 128.138.140.44(india.colorado.edu) I would like to setup a secundary NTP > server for redundancy. Any sujestions? > > > > Osvaldo Quinones
<snip> You will find lists of public stratum 1 and stratum 2 servers at: http://ntp.isc.org/bin/view/Servers/WebHome Try to select servers that are close to you; e.g. in Florida, Georgia, Alabama, South Carolina, etc. Other things being equal, closer is better. If your internet gateway is located in, say, New Jersey then the best you can do is to choose servers in New Jersey, Pennsylvania, Delaware, New York, etc. For reliability you should have a minimum of four servers. Two servers is the worst possible configuration; when they differ, as they inevitably will, which one do you believe??? A configuration with four servers can survive the failure of any one server. A five server configuration can survive the loss of two servers. Seven servers protects against three failing servers. If four or more of your servers fail, you have probably made poor choices of servers! :-) Look for servers with low values of round trip delay. Delays of up to twenty-five or thirty milliseconds are okay. The delay is important because it limits the maximum error in transmitting time from server to client to one half the round trip value. The error will usually be much less but can't possibly be more. If you have a single path to the internet, that path is a single point of failure! _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
