Best practise DNS server

[Mayo132]

Hey everyone,

sorry for asking this question. But at the moment iam trying to figure out, how i should deploy a DNS solution. So at the moment, everything is working, but i would like to ask for some best practises of you.

We got 2 ISP connections for about 80 People.

At the moment iam Using as the primary DNS  Unbound + Zenarmor free (hosted on my Hostsystem) and as secondary DNS iam using an Adguard installation on another Hardware.

So if one fails the clients are still connected to the internet.

But i this the right way of deploying it?  Or should i Use the Adguard as my primary DNS Server?


Thanks a lot.
Mario