Gerardo Juarez-Mondragon wrote: > I have a mail server to which several Kyocera multifunction > scanner/printers are connected. When a document is scanned, these > devices can mail the scanned image through a mail account at the > server. They each include a mail client. The problem is that they all > complain about being unable to find the mail server. This happens at > totally unexpected times and then, they suddenly start working again, > as they normally have. The failure does not have a pattern: it may > happen once a month and twice in a single week or day. > > Does any of you have an idea of what this problem might be, or have > run across a similar situation? Unless there's something relevant in the log files, I wouldn't waste time trying to debug this through trial-and-error. Use tcpdump (or similar) to monitor all traffic to/from the devices For TCP, only log packets with the SYN or FIN flags (to avoid filling the logs with bulk data transfers), but any non-TCP (including non-IP) packets should be logged. -- Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
