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Netstat -a recv and send Q's

System is Sun V40z with RH4. 12 gig memory. I am looking for reasons for system intermitant slowness loging in users. Top show 97% plus on all cpus. A restart of service = sshd seems to clear the problem for awhile. I need info on what the recv and send Q's are in netstat -a. Are these ques on the network card or RH software, etc. Specificaly I have large numbers in the q's. How can I flush these ques? How do I interpet these numbers?
thanks

netstat -a | grep syslog
udp     4224      0 *:syslog                    *:*
tcp        0         52 McPbsAM:ssh                 mcdpnety.ad.ewsad.net:1451  ESTABLISHED

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fosiul01

is this server located in Inside of your network ?? or remotely ??

you said, top command show 97% cpu uses, , so which service is consuming so much cpu ??

how much ram is available ??? from top command

netstat -an | grep ESTABLISHED

how many establisshed conneciton you got ?? are those legite connections ??

Bstafford51

ASKER

My bad. I ment 97% idle on cpu. The server is inside the network. I was able to clearhte ques on syslog
by restarting the syslog service. But i need to know what the number means, ie how is it generated.

thanks

fosiul01

sorry i didnot understand what you meant by this

"But i need to know what the number means, ie how is it generated. "

what number ??

Bstafford51

ASKER

The usual explanation I have found for the netstat utility does not go into very mush depth as to what the numbers mean. so if I have a high number in the RECV-q is it an error etc. What generates that number, where does the utility get that number. Is it from the interface? Is it a peak number or an average. I need more info on the guts of the Linux OS, something past the normal web/book information.

thanks

Morne Lategan

I'm not answering your question on the q's but slowness on login could be a dns issue as well. If DNS goes down, or becomes slow, it takes long between login and the password prompt because sshd will try to reverse lookup your IP address.

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fosiul01

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