Hello Peter,

thanks for that link. Actually, the problem is not within systemd but syslog-ng:
http://cgit.freedesktop.org/systemd/commit/?id=c31e14954b158351b11f886332229a61fff2e5d1

/dev/log has indeed once been a SOCK_STREAM but in 1999, it was switched to SOCK_DGRAM.
systemd actively works around that but the real fix should be done in syslog-ng.

I’m aware of http://www.campin.net/syslog-ng/faq.html#AEN191 (btw, the link to the reference manual there is broken) but as seen with systemd, it’s not really a choice but rather wrong to use SOCK_STREAM.

Nevertheless, syslog-ng now works with systemd.

Best regards, Wulf