Server stopped suddenly. But Ping is OK....SSH is NG...

johnappi · 08-12-2011, 01:11 AM

I have a question.
The service of the Web server stopped suddenly.
But clusterware did not move.
And examined it.

Environment
OS:RHEL 5.3

Exam
Ping:OK
SSH :NG
HTTP:NG

I hope answer about question.
Help me!

manyrootsofallevil · 08-12-2011, 05:50 AM

Quote:

Originally Posted by johnappi

I have a question.
The service of the Web server stopped suddenly.
But clusterware did not move.
And examined it.

Environment
OS:RHEL 5.3

Exam
Ping:OK
SSH :NG
HTTP:NG

I hope answer about question.
Help me!

All that ping proves is that the box is connected and running.

Can you post the output of the following command please?

Code:

iptables -nvL

johnappi · 08-16-2011, 09:54 PM

Hi manyrootsofallevil !
Sorry for the late reply.
My Server Environment is Dell M610(Blade).

[root@test01 ~]# iptables -nvL
Chain INPUT (policy ACCEPT 46M packets, 48G bytes)
pkts bytes target prot opt in out source destination

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination

Chain OUTPUT (policy ACCEPT 25M packets, 2757M bytes)
pkts bytes target prot opt in out source destination
[root@test01 ~]#

Regards,

Wim Sturkenboom · 08-17-2011, 10:15 AM

Are the services running?
ps -ef |grep ssh
ps -ef |grep http or ps -ef |grep apache

Please post the output between [code] and [/code] (the so-called code tags)

robert.wolfe · 08-17-2011, 10:16 AM

Quote:

Originally Posted by Wim Sturkenboom

Are the services running?
ps -ef |grep ssh
ps -ef |grep http or ps -ef |grep apache

If they aren't then you will need to log into the console and start the services, or, worse case, power cycle the server manually and see if the services will come back up then -- when 9 out of 10 times they usually do

johnappi · 08-17-2011, 10:36 PM

>>Wim Sturkenboom
>>robert.wolfe
Thank you for the answer.
Console stops responding.
But Ping is responding.

Best regards,

Wim Sturkenboom · 08-18-2011, 12:13 AM

Are you saying that with physical access (sitting behind the machine) you can't get in? Or that, because ssh is not working, you can't get in?

If the latter, you need to get physical access.

robert.wolfe · 08-19-2011, 12:58 PM

Quote:

Originally Posted by johnappi

>>Wim Sturkenboom
>>robert.wolfe
Thank you for the answer.
Console stops responding.
But Ping is responding.

Best regards,

Everytime this happens to me, I find a reboot is the only cure.

salemeni · 08-20-2011, 02:44 AM

Quote:

Originally Posted by johnappi

I have a question.
The service of the Web server stopped suddenly.
But clusterware did not move.
And examined it.

Environment
OS:RHEL 5.3

Exam
Ping:OK
SSH :NG
HTTP:NG

I hope answer about question.
Help me!

Check the status of services and tell me

Code:

#service httpd status
#service sshd status

generics array