Re: Recommended DNS server for a medium 20-30k users isp

[Mike Simpson via NANOG <nanog () lists nanog org>]

And completely the opposite in every possible way from running some gui dependent security nightmare on windows, a 
platform renowned for its amazing scheduler. 

If you want authoritative only on OpenBSD then NSD works well and can be synced from BIND if you want to only present 
OpenBSD to the internet. 

> On 8 Aug 2025, at 14:20, Rich Kulawiec via NANOG <nanog () lists nanog org> wrote:
>
> On Fri, Aug 08, 2025 at 12:44:40AM +0000, DurgaPrasad - DatasoftComnet via NANOG wrote:
> > Do you have any recommendations for recursive DNS servers for a medium sized (20-30k users) ISP.
>
> Yes.  ISC BIND, running on OpenBSD.  Performs well on minimal hardware,
> plus the OpenBSD firewall implementation ("pf") is excellent.  And since
> both can be configured and operated from the command line, this setup
> readily lends itself to revision control, scripting, and synchronization.
>
> ---rsk
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