Hi Jürgen,
> global > [...] > log 127.0.0.1 local1 debug > [...] > I was expecting the logs in /var/log/syslog but can't find anything > there. Where else should I look at please? Do you have a syslog daemon running on 127.0.0.1? You will need to check the configuration of that daemon to understand if and where the logging happens. Regards, Lukas

