Often I find that if the clients' clocks are too far off the server's, NTP will not every catch up and will often coredump. Try rdate -s on each client to get them at least close to the same time and then NTP may/should keep things syncronized. -swf -- "Don't pray when it rains if you don't pray when the sun shines." - Satchel Paige > Hello all, > > I would like to synchronize several computers to a NTP server in a LAN > not connected to the internet. My NTP server uses its own clock and the > NTP clients do not known server's IP. Therefore I need to use broadcast > or multicast synchronization. > > In the server machine, I run xntpd daemon using the following > /etc/ntp.conf file: > > server 127.127.1.0 # local clock > fudge 127.127.1.0 stratum 10 > > driftfile /etc/ntp/drift > broadcast 192.67.79.255 > broadcastdelay 0.008 > > authenticate no > disable auth > > # Keys file. If you want to diddle your server at run time, make a > # keys file (mode 600 for sure) and define the key number to be > # used for making requests. > # PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or > remote > # systems might be able to reset your clock at will. > # > #keys /etc/ntp/keys > #trustedkey 65535 > > > In every client machine, xntpd is running with following /etc/ntp.conf > file: > > driftfile /etc/ntp/drift > broadcastclient yes > broadcastclient 192.67.79.255 # listen on default 192.67.79.255 > broadcastdelay 0.008 > > authenticate no > disable auth > > # Keys file. If you want to diddle your server at run time, make a > # keys file (mode 600 for sure) and define the key number to be > # used for making requests. > # PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or > remote > # systems might be able to reset your clock at will. > # > #keys /etc/ntp/keys > #trustedkey 65535 > > And then the problem is that the computers clients don't synchronize > with the computer server. > > Best regards. Thanks. > > > -- > | Roman Rodriguez Perea | Visual Tools, S.A. | Tel [+34] 91 729 > 48 44 | > | Technology Dept. | Isla Graciosa , 1 | Tel [+34] 91 358 > 52 36 | > | mailto: rrodriguez at visual-tools.com | E-28034 Madrid | > | > | roman at visual-tools.com | | > | > > > > > > > > > > > >