-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] g] On Behalf Of Steve Kostecke Sent: Thursday, September 20, 2007 2:21 PM To: [email protected] Subject: Re: [ntp:questions] NTP Server Answers at startup,then stops answering
On 2007-09-19, Curt LeCaptain <[EMAIL PROTECTED]> wrote: This probably has nothing to do with the issue you discus in this article, but the following configuration tweaks wouldn't hurt: > server ntp1.cs.wisc.edu > server ntp3.cs.wisc.edu > server nss.nts.umn.edu > server ntp1.chiccp.net Append iburst to all of your server lines. Doing so will speed up ntpd's initial sync from ~5 minutes to ~20 seconds. iburst causes ntpd to send the first 8 packets to the remote time server at 2 second intervals, instead of the default minimum of 64 seconds, whenever that server becomes reachable. After the initial 8 packets ntpd reverts to the normal poll times. > restrict ntp1.cs.wisc.edu mask 255.255.255.255 nomodify notrap noquery > restrict ntp3.cs.wisc.edu mask 255.255.255.255 nomodify notrap noquery > restrict nss.nts.umn.edu mask 255.255.255.255 nomodify notrap noquery > restrict ntp1.chiccp.net mask 255.255.255.255 nomodify notrap noquery > restrict 192.168.1.0 mask 255.255.255.192 restrict 192.168.1.64 mask > 255.255.255.192 restrict 127.0.0.1 You could greatly simply your restrictions as follows: restrict default nomodify notrap noquery restrict 127.0.0.1 If you need to allow authorized clients on one of your sub-nets to query ntpd add the following as appropriate: restrict aaa.bbb.ccc.ddd mask 255.255.255.eee notrap nomodify More information about ntpd access restrictions is available at http://support.ntp.org/Support/AccessRestrictions > My problem is this: at startup, other servers are able to poll my NTP > server. After about 5-10 minutes, they're no longer able to poll and > fail their attempts from there on out, as if the service just stops > answering. Any suggestions would be great, I'm really lost at this > point. Please let us see the output of ntpq -p from the server at the following intervals after ntpd start up: 1 minute, 5 minutes, 10 minutes, 20 minutes. -- Steve Kostecke <[EMAIL PROTECTED]> NTP Public Services Project - http://support.ntp.org/ _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions Output: 1 minute: remote refid st t when poll reach delay offset jitter ======================================================================== ====== LOCAL(0) LOCAL(0) 10 l 40 64 1 0.000 0.000 0.001 *caesar.cs.wisc. 128.105.201.11 2 u 25 64 1 7.263 -1.341 4.709 +dr-zaius.cs.wis 128.105.201.11 2 u 24 64 1 7.344 -0.318 1.759 +nss.nts.umn.edu 160.94.54.248 2 u 23 64 1 20.907 -3.273 2.655 chiccp.net 128.252.19.1 2 u 36 64 1 13.432 -1.106 0.001 5 minutes: remote refid st t when poll reach delay offset jitter ======================================================================== ====== LOCAL(0) LOCAL(0) 10 l 12 64 77 0.000 0.000 0.001 *caesar.cs.wisc. 128.105.201.11 2 u 9 64 77 7.239 -2.151 4.388 +dr-zaius.cs.wis 128.105.201.11 2 u 13 64 77 7.424 -1.540 1.232 +nss.nts.umn.edu 160.94.54.248 2 u 9 64 77 20.661 -4.124 2.195 -chiccp.net 128.252.19.1 2 u 4 64 77 11.226 -3.556 1.234 10 minutes: remote refid st t when poll reach delay offset jitter ======================================================================== ====== LOCAL(0) LOCAL(0) 10 l 44 64 377 0.000 0.000 0.001 *caesar.cs.wisc. 128.105.201.11 2 u 43 64 377 7.239 -2.151 1.226 +dr-zaius.cs.wis 128.105.201.11 2 u 44 64 377 7.300 -2.205 0.489 +nss.nts.umn.edu 160.94.54.248 2 u 44 64 377 20.661 -4.124 4.423 -chiccp.net 128.252.19.1 2 u 40 64 377 11.226 -3.556 4.227 20 minutes: remote refid st t when poll reach delay offset jitter ======================================================================== ====== LOCAL(0) LOCAL(0) 10 l 37 64 377 0.000 0.000 0.001 *caesar.cs.wisc. 128.105.201.11 2 u 43 64 377 7.255 -0.307 1.858 +dr-zaius.cs.wis 128.105.201.11 2 u 34 64 377 7.361 -0.441 5.258 -nss.nts.umn.edu 160.94.54.248 2 u 44 64 377 20.969 -2.108 4.745 +chiccp.net 128.252.19.1 2 u 38 64 377 11.195 -1.089 0.640 _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
