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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0000371 | ClearOS | app-ntp - NTP Server | public | 2011-10-24 00:29 | 2013-08-14 19:12 | ||||
| Reporter | devferret | ||||||||
| Assigned To | user2 | ||||||||
| Priority | normal | Severity | minor | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Platform | OS | OS Version | |||||||
| Product Version | |||||||||
| Target Version | 6.5.0 Beta 1 | Fixed in Version | 6.5.0 Beta 1 | ||||||
| Summary | 0000371: ntpd will stop working when network interfaces change | ||||||||
| Description | My external interface uses pppoe; if that ever goes down and up again (which it does regularly, grrrr. ADSL grrr.) ntp stops being able to communicate with any external servers. The problem is fully described here: http://lists.ntp.org/pipermail/questions/2005-August/006332.html [^] ntp.org admits the issue here: http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.13. [^] > Currently, ntpd does not rescan the network interfaces after it has started. > If you are have a dynamic IP (use DHCP), this means ntpd will no longer be > able to communicate with "outside" sources after your IP changes. My hack for fixing it is below. It's not ideal... in particular the init scripts start ntpd with -g which will cause a step-jump in the time; in this case ntpd should be restarted with -x so the time is slewed. Also not sure if /etc/ppp/ip-up.local is the best place. /etc/ppp/ip-up.local: /usr/share/system/scripts/firewall-up $1 # gid -- ntpd can't handle changing interface, so restart if [[ $1 == ppp0 && -x /etc/init.d/ntpd ]] ; then logger "ppp0 up -- restarting ntpd" /etc/init.d/ntpd condrestart fi Finally, I think this means that modifying any network interfaces via the webconfig will also cause this to happen (for the modified interface). Not sure if ntpd already gets restarted in that case. | ||||||||
| Additional Information | Sample logs... ADSL goes down, ntpd starts erroring: Oct 11 11:33:22 office pppd[21695]: Connection terminated. Oct 11 11:33:22 office pppd[21695]: Modem hangup Oct 11 11:33:27 office pppd[21695]: Exit. Oct 11 11:33:27 office pppoe[21696]: read (asyncReadFromPPP): Session 4185: Input/output error Oct 11 11:33:27 office pppoe[21696]: Sent PADT Oct 11 11:33:27 office adsl-connect: ADSL connection lost; attempting re-connection. Oct 11 11:33:29 office adsl-stop: Killing pppd Oct 11 11:33:29 office adsl-stop: Killing adsl-connect Oct 11 11:33:33 office ntpd[21887]: sendto(64.34.185.196) (fd=24): Invalid argument That last message will repeat each time ntpd tries to talk to any peer. | ||||||||
| Tags | No tags attached. | ||||||||
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(0000969) user2 2013-08-02 11:19 |
Source Code Changelog --------------------------------------------------- - Added network event to ntp to handle restarts on dynamic IPs [tracker 0000371] File Changes --------------------------------------------------- Details: http://code.clearfoundation.com/svn/revision.php?repname=ClearOS&rev=6298 [^] U webconfig/apps/ntp/trunk/deploy/info.php U webconfig/apps/ntp/trunk/packaging/app-ntp.spec A webconfig/apps/ntp/trunk/packaging/network-connected-event |
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Issue History |
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| Date Modified | Username | Field | Change |
| 2011-10-24 00:29 | devferret | New Issue | |
| 2011-10-24 12:31 | user2 | Status | new => confirmed |
| 2013-02-02 11:02 | user2 | Target Version | => 6.4.0 Beta 2 |
| 2013-02-21 20:00 | user2 | Target Version | 6.4.0 Beta 2 => 6.4.0 |
| 2013-03-14 11:56 | user2 | Target Version | 6.4.0 => 6.4.0 Updates |
| 2013-07-29 13:57 | user2 | Target Version | 6.4.0 Updates => 6.5.0 Beta 1 |
| 2013-08-02 11:19 | user2 | Checkin | |
| 2013-08-02 11:19 | user2 | Note Added: 0000969 | |
| 2013-08-02 11:19 | user2 | Status | confirmed => resolved |
| 2013-08-02 11:19 | user2 | Fixed in Version | => 6.5.0 Beta 1 |
| 2013-08-02 11:19 | user2 | Resolution | open => fixed |
| 2013-08-02 11:19 | user2 | Assigned To | => user2 |
| 2013-08-14 19:12 | user2 | Status | resolved => closed |
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Issue History |