I think the problem is the option "-h", because it introduces arbitrary line feeds in order to be more readable by people, but it makes more difficult to decode. This happened in RHEL5 but it can happen at any system with a long filesystem path.
"-P" is an interesting option to preserve compatibility. So I think the best solution is to use only "df" or "df -P" at "ossec.conf" and rule 531. Thank you for letting us know! Regards. -- --- You received this message because you are subscribed to the Google Groups "ossec-list" group. To unsubscribe from this group and stop receiving emails from it, send an email to ossec-list+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.