I have a Red Hat 7.2 server running typical network services. After installing, telnet, ftp and http worked fine. I go home from work, come in the next day and I can't get remorte access (not even http). Reboot, remote access works all day, go home, come back next day...same thing. It's like something is happening to it overnight--or that it's going to sleep after a period of no network requests and then doesn't wake up again....

It has a static IP, the firewall is disabled (subnet is behind a firewall), and xinetd seems to continue to run and to listen--I just can't connect from the outside.

Thanks for any suggestions.

I'm tracking a (maybe) similar problem... except mine drops irregularly once a week...

I added a syslog entry to write kernel.* msgs to /var/log/console so I could read the kernel messages separately from the main syslog files.
I have found: NETDEV WATCHDOG: eth0: transmit timed out
repeating ad infinitum, which users say coincides with the failure.

My next task is to move the PCI card to another slot and if my prob remains, to swap it out for a new card.
I am keeping an eye on it remotely with Webmin and ssh.

Log files are GREAT!
I suggest you create a script to ping the machine from all directions every 5 minutes or so and write this to a /var/log/~ file. Once you know what time it curls it's toes, you can do a log search for anything useful.

Rgds.

I'll give it a try--great suggestion. Thanks.