Remote response suspends when no users logged on actively using internet

jmharp · 02-22-2009, 03:19 PM

I have a Redhat machine that is primarily used for logging into by ssh. Currently the machine connects to the internet and is responsive to remote requests for connection when any user is actively using the internet on the local machine. However when no user is logged on the machine stops answering remote requests for ssh sessions or pings. The machine will answer remote requests for about 10 to 15 minutes after the user logs off the local machine. I'm sure this is some sort of setting that is incorrect. Thanks in advance for any help you can provide.

FragInHell · 02-22-2009, 04:46 PM

Do you have power management running if so try to disable it, also check the bios as well.

jmharp · 02-23-2009, 12:00 PM

I disabled Advanced Power Management and restarted, but the problem still persists. I looked in the bios I don't think there are any power management options turned on in there. The suspend mode is set to S1. Are there other power management settings that I could disable, and where are the controls for those settings?

FragInHell · 02-23-2009, 04:06 PM

you could remove all the power management stuff just to be sure, acpi is the main one I think from memory.
Is there anything in the logs / dmesg after the user logs out before the systems stop responding. Its not susspending to disk ?? Is this a server or desktop / laptop , how did you install it, as this will depend on what packages where installed?

jmharp · 02-23-2009, 04:41 PM

I don't seem to have acpi anywhere on this computer. (acpid is not in /etc/rc.d/init.d) I've checked the logs and there are no messages being recorded when remote connectivity is lost. This computer is a server I'm not sure how the OS was originally installed. I suspect it was installed by Dell when the computer was originally bought as the release is quite old (Redhat 8).

jmharp · 02-26-2009, 08:34 AM

I came up with a work around solution for the moment. Basically I have the computer pinging an IP address every 3 minutes and that keeps the internet connection active so that users can login remotely.

FragInHell · 03-02-2009, 04:49 PM

Hum some network cards have the ability to goto sleep as such, when the systems boots, is there a network card bios type prompt that appears, maybe the card is sleeping as such but the os cannot handle it.
Anyway the ping is good work round in the mean time.

chrism01 · 03-08-2009, 08:06 PM

If(!) that really is Redhat 8 codename Psyche ( http://linuxmafia.com/faq/RedHat/releases.html), that hasn't been supported/updated in years, which means its wide open to exploits.
For your sake and ours please update/upgrade to eg RHEL/Fedora