I was sending out a few hundred 25K emails over a period of a minute or so when my systemn encountered this thrilling sequence: Dec 7 22:11:56 all vmunix: file:<3>zs1: silo overflow Dec 7 22:11:57 all syslogd: /etc/utmp: File table overflow Dec 7 22:11:56 all vmunix: table is ful<3>zs1: silo overflow It appears to be some sort of file table overflow related to the syslog daemon. The message repeats numerous times and I think it has to do with the number of messages sent over a short time, however: I regularly send far more messages without this error It lost the processes that were generating these messages so I had to redo part of the mailing. Does anyone recognize the symptom, and does this open a potential for attack by stress? (e.g., if you can get something to fail in this way can the failure cause something to be missed?) Just thought I'd mention it. -> See: Info-Sec Heaven at URL http://all.net/ Management Analytics - 216-686-0090 - PO Box 1480, Hudson, OH 44236