Date: Fri, 31 Dec 1999 23:44:10 -0600 (CST) From: jahanur <jahanur@jjsoft.com> To: Greg Lehey <grog@lemis.com> Cc: freebsd-isp@FreeBSD.ORG Subject: Re: Public ntp servers (was: ntpdate error) Message-ID: <Pine.BSF.3.96.991231234154.5885A-100000@ns2.jjsoft.com> In-Reply-To: <20000101160511.P1528@freebie.lemis.com>
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I have created the drift file but left it empty becuase I dont know how much is the offset time is. So I thought I was doing somthing wrong. I just wanted to make sure. Thank You again. Jahanur On Sat, 1 Jan 2000, Greg Lehey wrote: > On Friday, 31 December 1999 at 23:13:03 -0600, jahanur wrote: > > On Sat, 1 Jan 2000, Greg Lehey wrote: > > > >> On Friday, 31 December 1999 at 18:53:40 -0600, jahanur wrote: > >>> Hi folks, > >>> > >>> I need some help. > >>> > >>> I was running my ntpdate as follows: > >>> > >>> #sync our time using ntpdate ... I need to add more servers > >>> 0 0-23/6 * * * root /usr/sbin/ntpdate > >>> www.mit.edu ftp.cdrom.com >/dev/nulll > >> > >> You need to put all this on one line. You should also change the name > >> to /dev/null or you will end up with an additional file /dev/nulll. > >> And you probably want to use [x]ntpd, not ntpdate. > >> > >>> It was working fine, but now its giving me error like this: > >>> "No suitable server is found" > >>> > >>> So could somebody tell me what will be suitabel server to check sync > >>> ntpdate. > >> > >> Check http://www.eecis.udel.edu/~mills/ntp/servers.html. > > > > One more question. > > I have got the xntpd running but wanted to know what is ntp.drift file do. > > or what should I put in there. > > It's in the xntpd man page: > > driftfile filename > This command specifies the name of the file used to record the > frequency offset of the local clock oscillator. If the file ex- > ists, it is read at startup in order to set the initial frequency > offset and then updated once per hour with the current offset > computed by the daemon. If the file does not exist or this com- > mand is not given, the initial frequency offset is assumed zero. > In this case, it may take some hours for the frequency to stabi- > lize and the residual timing errors to subside. The file contains > a single floating point value equal to the offset in parts-per- > million (ppm). Note that the file is updated by first writing the > current drift value into a temporary file and then using re- > name(2) to replace the old version. This implies that xntpd must > have write permission for the directory the drift file is located > in, and that file system links, symbolic or otherwise, should > probably be avoided. > > The last sentence shows, of course, that the writer doesn't really > understand what a link is. Symbolic links may be a bad idea, but > "hard links" are the only way to have files at all. > > Greg > -- > Finger grog@lemis.com for PGP public key > See complete headers for address and phone numbers > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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