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server goes down

Hello,
today when I was logged in from the shell I tried to stop apache service
and the server just stopped responding! this is what I did

-(02:11 15 AM)-(root@server)-(/home) $ service httpd stop
Stopping httpd: [SSH] ERROR: An existing connection was forcibly closed by the remote host.

[SSH] INFO: DISCONNECT

can someone please tell me why is this? sometimes my server stops responding for no
reason, so I have to open a ticket and request a reboot! could it be because of stopping apache?
0
Sabrin
Asked:
Sabrin
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3 Solutions
 
ibu1Commented:
What are the contents of ur /var/log/messages ?
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SabrinAuthor Commented:
the server went down at 2:11am
and I see this from the file /var/log/messages

Nov 26 22:08:23 dedicated sysctl: kernel.sysrq = 0
Nov 26 22:08:23 dedicated sysctl: kernel.core_uses_pid = 1
Nov 26 22:08:23 dedicated sysctl: fs.file-max = 65000
Nov 26 22:08:23 dedicated rc.sysinit: Configuring kernel parameters:  succeeded
Nov 27 03:08:24 dedicated date: Mon Nov 27 03:08:24 EST 2006
Nov 27 03:08:24 dedicated rc.sysinit: Setting clock  (localtime): Mon Nov 27 03:08:24 EST 2006 succeeded
Nov 27 03:08:24 dedicated rc.sysinit: Loading default keymap succeeded

so the part from where the server goes down its missing!
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SabrinAuthor Commented:
nothing found from nov 27 at 2am
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ibu1Commented:
May be ur server is exceeding the no. of connection.Please check any entry in /var/log/httpd
Please also check that enough swap memory is alloted by
# free -m
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ssvlCommented:
If it not a hack
and
not a low memory problem
so  I think It because of h/w problems like memory

(I got the same isue in my server and thay (customer support person) told me to clean the memory and now it works fin)e  



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xDamoxCommented:
Hi,

Also could you check your

/var/log/secure log file for any entries made on that day when your machine stopped responding.
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Duncan RoeSoftware DeveloperCommented:
I would check *any* log file in /var/log that has changed recently. Some will be no help, but one may tell you something useful.
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SabrinAuthor Commented:
ssvl, how do I clean the memory?
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SabrinAuthor Commented:
ibu1, what do I look for in /var/log/httpd
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Duncan RoeSoftware DeveloperCommented:
In the absence of an answer yet from ssvl, "re-seating" the memory may help, that may be the same thing as "clean" or may not. In other words, unplug & plug back in the memory sticks. Be sure they are firmly home. Once should be enough, if indeed this is the problem.
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Duncan RoeSoftware DeveloperCommented:
Take precautions against static electricity: wear your wriststrap if you have one else ty to toucg the metalwork of the computer chassis as much of the time as practicable and certainly just before you start.
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Duncan RoeSoftware DeveloperCommented:
toucg should be touch
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SabrinAuthor Commented:
the datacenter is 100 miles away from where I am..
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Duncan RoeSoftware DeveloperCommented:
If it *is* a hardware problem, you'd have to physically fix it even if the system was at the North Pole. Pursue software possibilities first.
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