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Old 09-17-2009, 03:28 PM   #1
justinhickey
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Registered: Sep 2009
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Loose Connection to Linux Server RHEL 3


First, I am definately a newbie with very little experience working with Linux.

Info: Dell PowerEdge 1950
Redhat Linux Enterprise Taroon Update 8 (RHEL 3) 2.4.21-50
Two NIC Cards



This machine runs our webportal, so it is imporant for us to keep it up. We had to reboot the machine the other day...and of course, it seems that many of the settings were lost went it came back up. We have two nic cards installed in the machine, but we are only using eth0 (eth1 is not active). We can get to the web page just fine externally, and we can putty to the machine internally. It does seem that after about 30 minutes or so of no system activity, the eth0 some how dies and the web portal goes down externally and of course, I cannot putty to it internally. At this point, we have been inactivating the eth0 and then activating it again, and this opens the connection again.

Does anyone on this expert group have any ideas or pointers as to what we could do or review to rememdy this issue? We are primarily a Windows shop except for a couple linux boxes we ended up with (yes....don't laugh too loud). Thank you very much in advance.
 
Old 09-17-2009, 04:09 PM   #2
j_jerry
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Is the whole system suspends after some time of inactivity or just the NIC ?

Check the power management to ensure everything is configured properly.
 
Old 09-17-2009, 04:17 PM   #3
justinhickey
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Just the NIC card seem to go into a sleep mode. We have looked into power management but were not sure what should/could be changed.

JUH
 
Old 09-17-2009, 04:20 PM   #4
j_jerry
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Are you sure its dying after some specific time ?
 
Old 09-17-2009, 04:40 PM   #5
justinhickey
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Yes, it actually just happened again, just about 30 minutes after my last interaction with the sever (via the website). We can get on the terminal and the system runs, but for some reason the nic card just stops (from what we can tell, since we can no longer connect externally or internally to the machine). We are really at a loss as to what should be reviewed.
 
Old 09-17-2009, 04:54 PM   #6
j_jerry
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You said you have 2 NICs; just to confirm its not a hardware malfunction, try running the server with just the eth1 card(currently inactive). Again do this with eth0 unplugged
 
  


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