Yes, recent versions would accept normal bsd like messages. The key to watch out is the framing, as that needs to be correct. syslog(transport(tcp)) expects rfc5425 (or rfc5426, cant remember which) style framing network(transport(tcp) flags(syslog-protocol)) accepts both old and new formats without framing syslog(transport(udp)) has no framing, so again it accepts 5424 and 3164 and uses udp. Actually, we may want to imply flags(syslog-protocol) everywhere in the future, there's an easy way to autodetect the format. On Feb 16, 2018 21:31, "Scot" <scotrn@gmail.com> wrote: Will the syslog() source driver support both RFC5424 and RFC3164 from different hosts at the same time in flight? source s_syslog_tcp { syslog(port(514) transport("tcp")); }; source s_syslog_udp { syslog(port(514) transport("udp")); }; ____________________________________________________________ __________________ Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng Documentation: http://www.balabit.com/support/documentation/? product=syslog-ng FAQ: http://www.balabit.com/wiki/syslog-ng-faq