[syslog-ng] prevent syslog-ng to collect syslogd messages

Hi Guys, we use syslog-ng to collect application logs and still use the standard syslogd for system logging. The application logs were defined in an include config file so the application teams are able to configure them as they need it. The problem is that we want to prevent that they can also configure systemlogging sources in their config like "/proc/kmsg" or "dev/log" on Linux. Is there a possibility to overwrite such sources in the global config or better a global parameter that avoids such configurations? Thanks in advance.... With best regards / Mit freundlichen Grüßen Stefan Hoenig