[mdlug] Strange Log Entry

[Mat Enders]

Is said machine a Windows boxen.


On Thu, Apr 11, 2013 at 10:04 PM, A. Zimmer <andrew.zimmer at comcast.net>wrote:

> Hello,
>
> Recently, a strange entry has been occasionally appearing in my kernel
> log.  I cannot relate it to any activity that I am doing.  Here is the
> entry:
>
> kernel: UDP: bad checksum. From 196.21.79.50:53 to 192.168.0.4:2657 ulen
> 279
>
> The only thing that changes is the port number on the receiving side
> (in this case 2657) and, as best as I can recall, also the originating
> address.
>
> My machines are all connected to a router which is in turn connected
> to a cable modem.  The address 192.168.0.4 refers not to my Linux
> machine but to another computer on my home network which is usually
> switched off.
>
> A whois lookup of 196.21.76.50 gives a location in South Africa.
>
> I do not engage in any kind of network activity beyond Internet
> surfing and email, so why should this strange message be appearing
> in my kernel log?
>
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>



-- 
Mathew E. Enders

"Where once Samba and Apache sold Linux to the world they are now just part
of the plumbing.  But that's OK, plumbers make good money."
--Jeremy Allison