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Old 20th March 2008, 18:19
gAnDo gAnDo is offline
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Default CENTOS 5 Ping Problem

Hi.
Can anybody explain why this is happening?
Code:
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=1 ttl=243 time=150 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=2 ttl=243 time=151 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=3 ttl=243 time=151 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=4 ttl=243 time=153 ms
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=7 ttl=243 time=153 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=8 ttl=243 time=149 ms
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=11 ttl=243 time=152 ms
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=12 ttl=243 time=151 ms
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=16 ttl=243 time=152 ms
ping: sendmsg: Operation not permitted
64 bytes from py-in-f99.google.com (64.233.167.99): icmp_seq=18 ttl=243 time=151 ms
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
This happens for any site, not just google.

The server runs mysql, php & apache and is quite busy.

I think this may be causing connection errors for users also (including myself) so am quite keen to get this sorted, although the load is under 1 so I am suprised by the un-responsiveness of the pages served, and the pings going out!

Thanks.


edit: Ok so I stopped the httpd service and it pings ok now.
So this error must occour becuase Apache is overloading the server?

Can anybody give me any advice as how to stop this happening? Maybe increase the amount of active connections?
Ta.

Last edited by gAnDo; 20th March 2008 at 18:25.
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  #2  
Old 21st March 2008, 14:37
falko falko is offline
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Are there any errors in Apache's error log?
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Old 21st March 2008, 14:42
topdog topdog is offline
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That is typically a networking problem, that is when the kernel refuses to transmit the packet, am suspecting congestion on the wire.
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Old 21st March 2008, 18:16
gAnDo gAnDo is offline
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Quote:
Originally Posted by falko
Are there any errors in Apache's error log?
None, well apart from some 'file does not exist' errors caused by people not updating their bookmarks.

Quote:
Originally Posted by topdog
That is typically a networking problem, that is when the kernel refuses to transmit the packet, am suspecting congestion on the wire.
Sounds fair, if this is the case what would my options be?
And how can I test this is the case?

edit: Do you mean my hosts bandwidth? Or my server?

Thanks again for the help guys.
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Old 22nd March 2008, 16:44
falko falko is offline
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Might be a firewall problem. I've found some interesting links:
http://mandrivausers.org/index.php?showtopic=18051
http://lists.danga.com/pipermail/mem...er/002726.html
http://frankmash.blogspot.com/2005/1...permitted.html
http://www.linuxquestions.org/questi...mitted-307848/
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Old 23rd March 2008, 05:28
gAnDo gAnDo is offline
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Thanks, I use APF. I will read through the links and post back
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