> Date: Mon, 23 Jun 2008 18:11:18 -0400 > From: Steven <[EMAIL PROTECTED]> > Sender: [EMAIL PROTECTED] > > > System Information: > ------------------- > At work, I am configuring a system which consists of six servers (master, > slave1, ... slave5) networked together but kept isolated from any external > network. > > The ONLY time requirement is that all the systems have the same time, > which does NOT need to be accurate, just consistent. > > All servers run RHEL4 and use ntp-4.2.0.a.20040617-6.el4. > > All systems: (all files owned by root unless specified) > /etc/ntp.conf 644 > server 127.127.1.0 > server master # LINE NOT INCLUDED ON master > driftfile /var/lib/ntp/drift > broadcastdelay 0.08 > > /etc/ntp 755 > /etc/ntp/keys 600: Only commented lines > /etc/ntpservers 644: Default (redhat time servers) > /etc/step-tickers 644: slave: master, master: empty > /var/lib/ntp/drift 644 (ntp:ntp): 0.0 > > Problem: > -------- > While the master goes through its synchronization routine (~10 mins), > the slaves cannot obtain the time (see below). Even after the master > is responsive, the drift file is not written to. > [EMAIL PROTECTED] ~]# ntpdate -d master > ... > 192.168.1.1: Server dropped: strata too high > ... > 23 Jun 17:28:33 ntpdate [3343]: no server suitable for synchronization found
OK. Why is it taking ~10 minutes to sync? This one I see fairly often and I don't understand it. My systems typically are synced and available for use in <3 minutes. Do you use iburst and -g? If so, that should get the master synced very quickly and your clients should be able to start their own sync, also using iburst. I have not been following this thread, so this my already have been discussed. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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