On 2007-03-14, RICCARDO <[EMAIL PROTECTED]> wrote: >"Steve Kostecke" wrote: > >>You can't use "restrict default ignore" and pool servers (or any other >>hostnames that resolve to multiple IP addresses > > What do you suggest me, to use server hostnames which resolve unique > IP address ?
That all depends on your application and requirements. If your ntpd is behind NAT or a stateful firewall you don't really need "restrict default ignore" and can safely use pool servers. If your ntpd has a public, routable, IP address AND is not behind a stateful firewall AND you feel that you MUST use "restrict default" ignore, then you should choose servers from the Public Stratum-2 Time Servers list at http://www.ntp.org/s2 or http://ntp.isc.org/s2 Under no circumstances should you ever hard code a pool server host-name/ip-address in your ntp.conf unless that server is listed on one of the Public Time Servers lists. Please read http://ntp.isc.org/Support/AccessRestrictions and follow the check-list for choosing your default restriction. >How many servers should you insert into ntp.conf ? min. 4 A minimum of 4 will provide ntpd with enough redundancy to determine the correct time if one of those 4 servers goes bad. -- Steve Kostecke <[EMAIL PROTECTED]> NTP Public Services Project - http://ntp.isc.org/ _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
