"lame server on '46.239" .... 5 every second

hello,

in my /var/log/messages I can see lots, really lots of entries like this:

Oct 24 10:54:49 mybox named[1634]: lame server on 'theip.in-addr.arpa' (in theip.in-addr.arpa'?): 195.31.anotherip#53

I see about 4 ot 5 entries like this every second in average, it looks like this requests do always come from 3 different ip addresses: starting with 195.31.....

Could you please explain me whats going on?

thanks indeed for your help!

 

 

 

 

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