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

[Marco Moock via NANOG <nanog () lists nanog org>]

Am 08.08.2025 um 00:44:40 Uhr schrieb DurgaPrasad - DatasoftComnet via
NANOG:

> 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.


The university I worked at ran ISC BIND9 on 2 machines as recursive
resolver and authoritative server.

You can run multiple of them and assign them randomly to your customers
if the load is too high. 

-- 
Gruß
Marco

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