[syslog-ng] How to filter certain host

I would like to filter several hosts that I don't want sending their logs to my syslog-ng I have this hostnames: initiator Use mpt0 NVDATA Rev gconfd Service I would like to filter those above host from sending logs to my syslog-ng. How can I do that? Thanks Francis Francis Yakin Sr. Unix System Engineer Kaiser Permanente Division Of Research 2000 Broadway ave Oakland, CA 94612 (510) 891-3873 (office) 8-481-3873 (tie-line) --------- kp.org/thrive