os x 10.12 sierra syslog

[Rainer Müller]

On 2016-09-26 11:52, Steve Wardle wrote:
> This isn't just a macports problem but someone here may be able to
> help.
> 
> I updated from OS X 10.11 to 10.12 over the weekend. After rebooting
> the machine was still running macports binaries installed under OS X
> 10.11. Postfix, dovecot2 and amavisd were running and logging to
> /var/log/mail.log correctly.
> 
> I removed and reinstalled macports and all the ports for OS X 10.12. 
> Now postlog, postfix, dovecot2 and amavisd run OK but nothing is
> logged to /var/log/mail.log. The /usr/bin/logger command also won't
> log to /var/log/mail.log.
> 
> If I run postlog or logger from my 10.11 backup they do log to
> /var/log/mail.log so syslogd seems to be working as in 10.11 but any
> binaries compiled under 10.12 fail to talk to it.

Please check Console.app instead. macOS 10.12 Sierra introduces "Unified
Logging" that now longer writes to log files on disk.

There is also a log(1) command line utility to query the log database.

https://developer.apple.com/reference/os/1891852-logging

Rainer