dhcpd stops logging

Shane Kerr Shane_Kerr at isc.org
Tue Dec 19 10:57:16 UTC 2006

Hash: SHA1

Tina Siegenthaler wrote:
>> Does syslog stop logging to other files at the same time?
> I don't think so, but since I haven't got any other app that  
> generates messages as regularly as dhcpd, I can't really tell.  
> Wait... now I remember, when it happened last Friday, I tried "logger  
> -p local1.info test", to test if syslogd has stopped accepting any  
> messages, but it apparently hadn't, since that message appeared in  
> the dhcpd.log (I'll try that again as soon as possible). It seems  
> that somehow dhcpd and syslogd loose contact, but I don't know who is  
> dropping it in the first place...

You should be able to use "lsof" to see the files that the DHCP server has open.
One of them should be /var/run/log, which according to the OS X man page is the
socket used for logging:


If this file is not open, then the DHCP server has lost the connection. In this
case, it is probably a bug, but it could be in the syslog() library call, in the
 syslogd, or in the OS itself.

A possible solution may be to use syslog-ng:


This won't help if the problem is in the syslog() library call. In that case, we
may be able to put together a workaround, but it will be a bit of a hack.

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