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

[Tim Burke via NANOG <nanog () lists nanog org>]

At $lastjob, we had 60k subs using a pair of BSD boxes running a pretty simple BIND instance with no issues. We used 
frr to advertise a vip for customers to query against, but otherwise it was a pretty simple install/config. 

> On Aug 7, 2025, at 19:45, DurgaPrasad - DatasoftComnet via NANOG <nanog () lists nanog org> wrote:
>
> Hello all,
> Do you have any recommendations for recursive DNS servers for a medium sized (20-30k users) ISP.
> We have used powerdns and unbound but sometimes find the caching times a bit on upper side. Any suggestions between 
> these two or anything new?
> Also need points on how much we tune the settings
> pros and cons if any.
>
> Thank you /DP
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