[dnsdist] how to increase connection qlen on DoH listener?

[Christoph]

> please open a feature request [1] if you
> think it's worth it.

thanks for considering this
https://github.com/PowerDNS/pdns/issues/8986



>> Reading https://www.freebsd.org/doc/en/books/handbook/configtuning-kernel-limits.html
>> I would expect that you want to increase kern.ipc.soacceptqueue
>>
>> 	-Otto
> https://docs.freebsd.org/doc/12.1-RELEASE/usr/local/share/doc/freebsd/en/books/handbook/configtuning-kernel-limits.html
> 
> confirms that that is very likely the proper sysctl for your version,

They are the same setting but as Remi said it is not supported by dnsdist.

from listen(2):
     The
     kern.ipc.somaxconn	sysctl(3) has been replaced with
     kern.ipc.soacceptqueue in FreeBSD 10.0 to prevent confusion about

     its actual functionality.  The original sysctl(3)
kern.ipc.somaxconn is still
     available but hidden from a sysctl(3) -a output so	that existing
     applications and scripts continue	to work.