Syslog, auth.log, kern.log and messages log files are not updated anymore after upgrading to Debian Wheezy (Debian Squeeze was previously running).
How could I fix it?
I figured the exact issue has been encountered by other Debian users (http://forums.debian.net/viewtopic.php?f=5&t=104049).
To restore logging, one just needs to reinstall the syslog daemon (removed during upgrade):
Came here because one of our Customers Servers was upgraded from Debian Etch (4.0) to Squeeze, to wheezy and finally to Jessie (8.1) last week and
It turns out that in Debian 7
Just installed rsyslog-Package as mentioned in http://jonsimpson.co.uk/log/2014/syslogd-updated-debian and syslog is up and running again.