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TCP: request_sock_TCP: Possible SYN flooding on port 9981. Sending cookies. Check SNMP counters.

Added by David jrm almost 8 years ago

Hi,

Im seeing the above message in dmesg since last updates...
Is this happening to anyone else?
anyway to fix it? or should I not be worried at all?

Thanks


Replies (2)

RE: TCP: request_sock_TCP: Possible SYN flooding on port 9981. Sending cookies. Check SNMP counters. - Added by Obv B almost 8 years ago

I've seen it occur when logging in to the web interface, and not just with the latest/recent updates - its been happening for a while.

Often, it doesn't "take" the password the first time and I have to submit the password three or more times, so I just assumed that "SYN flooding" was just those multiple connection attempts and have never worried about it, but there are definitely some issues with the web login procedures.

RE: TCP: request_sock_TCP: Possible SYN flooding on port 9981. Sending cookies. Check SNMP counters. - Added by David jrm almost 8 years ago

Thanks Obv B, I have made some tests and definitely this message is just logged when you go through the web login process, however I can login at first time with no issues (http digest disabled)

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