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-   -   Can someone tell me what kernel: =40142 WINDOW=16060 RES=0x00 ACK URGP=0 means please (https://www.linuxquestions.org/questions/linux-general-1/can-someone-tell-me-what-kernel-%3D40142-window%3D16060-res%3D0x00-ack-urgp%3D0-means-please-759768/)

ltodd2 10-05-2009 03:51 AM
Can someone tell me what kernel: =40142 WINDOW=16060 RES=0x00 ACK URGP=0 means please
 
Morning
Can anyone tell me what this means. I've just noticed it on our redhat server.
kernel: =40142 WINDOW=16060 RES=0x00 ACK URGP=0

Google is not helping me this time :(
Thanks

Lee

cpuobsessed 10-05-2009 05:26 AM
Need more info, where are you seeing this?

ltodd2 10-05-2009 06:05 AM
cpuobsessed

Sorry. Its in /var/log/messages.
We have a tool that monitors the servers and it alerted this morning saying smtp was down which is why I logged in. found nothing about smtp but only this.

Lee

zhjim 10-05-2009 06:09 AM
To me this looks like firewall logs like iptables -j LOG --tcp-options provides. Also its not a whole line. There should be Source and destination ip and port. Look a few lines up if you can find something like it.


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