Just two lines of configuration and my Synology NAS starts logging via my syslog proxy intro lggr:
destination d_lggr { tcp(“192.168.2.102” port(514));
log { source(src); destination(d_lggr) };
Just appended those two lines into /etc/syslog-ng/syslog-ng.conf and reloaded the syslog-ng daemon.
Seconds later I see the first entries:
admin: User [admin] logged in from [192.168.0.103] via [DSM].
What a fun!