freebsd ipfw question
Mark Andrews
marka at isc.org
Thu Feb 17 22:07:09 UTC 2022
Only you can know what is “normal" for your configuration. Having more
that 1 TCP connection from a source at a time is not abnormal. There is
no requirement to use existing TCP connections for other queries.
> On 18 Feb 2022, at 08:45, Randy Bush <randy at psg.com> wrote:
>
> for some reason lost in time, i have the following in `/etc/ipfw.rules`
> on a freebsd system running bind9
>
> add allow tcp from any to me 53 limit src-addr 1 setup
> add deny tcp from any to me 53
>
> the results are
>
> 01000 48358531 6390772849 allow tcp from any to me 53 setup limit src-addr 1 :default
> 01100 165225 9379997 deny tcp from any to me 53
>
> is this about normal?
>
> randy
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Mark Andrews, ISC
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