public network traffic to my ip address port 53
luzar722 at gmail.com
Thu Mar 19 15:26:55 UTC 2015
Olivier Nicole wrote:
>> In my firewall log I see thousands of udp packets from ip addresses all
>> over the word trying to access my freebsd gateway server on port 53.
>> Right now I am blocking them and see no negative effects.
>> Is there any valid reason to allow these unsolicited inbound packets
>> access to my system on port 53?
> You know port 53 is DNS?
> Maybe your IP was previously used by a DNS server.
> If you bloc port 53, you may consider leaving it open enough to be able
> to solve your own DNS requests.
I have been running this home server for 15 years and have never had a
Last time I scrutinized my firewall log was 2 plus years ago and I did
not have all this unsolicited inbound dns traffic.
To me it looks like a search for dos targets. To my knowledge dsn
servers DON'T roll through pubic IP address ranges looking for other
So I ask the question again "Is there any valid reason to allow these
unsolicited inbound packets access to my system on port 53?".
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