Recently I have been having problems with my server not responding to my
requests. I thought it was all sorts of issues, but I finally looked at
the logs and:
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80 114.29.194.4#11205
(.): view external: query (cache) './A/IN' denied
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80
114.29.216.196#64956 (.): view external: query (cache) './A/IN' denied
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80 64.68.114.141#39466
(.): view external: query (cache) './A/IN' denied
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80
209.197.198.45#13280 (.): view external: query (cache) './A/IN' denied
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80
114.29.202.117#41955 (.): view external: query (cache) './A/IN' denied
Aug 2 15:47:19 onlo named[6155]: client @0xaa3cad80 62.109.204.22#4406
(.): view external: query (cache) './A/IN' denied
Aug 2 15:47:49 onlo named[6155]: client @0xa9420720 64.68.104.9#38518
(.): view external: query (cache) './A/IN' denied
Aug 2 15:47:50 onlo named[6155]: client @0xaa882dc8 114.29.202.117#9584
(.): view external: query (cache) './A/IN' denied
grep -c denied messages
45868
And that is just since Jul 31 3am.
This is fairly recent so I never looked into what I might do to protect
against this. I am the master for my domain, so I do need to allow for
legitimate queries.
Any best practices on this?
I am running bind 9.11.4
thanks
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