Hi all

I have a DELL XEON Twin Pro server with two NW cards running RedHat ES.

It has been running since late 2004 with no problems at all. Just recently (well, since mid December) after a day or two the server will stop responding to ping or http requests. When I physically plug in my monitor etc. I can see that httpd is running. So I ping an external website and after a brief pause it pings merrily away and then, I can access it again via the web.

Very odd.

No other servers plugged into the switcth and/or on the same Leased Line have a problem at all.

Any pointers gratefully received.

Cheers

it may be a power management type thing on the box.

when the adapters go down go to the box and type dmesg it may give some clues as to why it shut the device down.
also look in /var/log/messages to see if anything else was said to the syslog.

Had a look in this folder and looked at all logs that had an entry date of today (it happened again) and there is nothing at all in there mentioning network cards or http. The http daemons were still running but this time i could not ping out or in.

very odd

Do you have some specific names of logs files to interrogate more closely?

TIA

You could have been hacked and some one has been messing with your firewall settings

My guess would be some type of power management. Go through your bios settings on the server. I haven't used any power management in linux before, but it seems that something like that would show up in dmesg. Doesn't sound like faulty wiring or hardware because it appears to work after you jump on the box and try to ping. Check the settings on the port switch or try a different port switch.