Is it a good idea to have a server dedicated to DNS only?

Adrien

Hello,

Do you thin it is a good idea to have a server dedicated to DNS only and not have the DNS role installed on my BM where I host my client sites?

If I do that, will it slow down if the DNS server isn't located in the same geographical zone as my Bare Metal hosting applications?

Thank you for your guidance.

PS: I discovered reading the documentation that I could have a server with DNS role only: https://enhance.com/docs/email-role/email-settings.html

prasad0889

I would suggest, yes. It will be better to host DNS only servers. It makes them resilient to failure of one of your nodes. Also, having a separate DNS server will allow you to scale it as per your requirements in the future.

Or the best possible way would be to force your clients to use Cloudflare. I might go that route, in the future.

Isaia-Arknet_PTY_LTD

The best practice is to have @3 NS servers each on a geographical region/ Internet Node (Europe / Us / Oceania)

Small VMs will do the job just fine.

Adrien

Isaia-Arknet_PTY_LTD The best practice is to have @3 NS servers each on a geographical region/ Internet Node (Europe / Us / Oceania)

Very interesting thanks! Is this still recommended if I don't use the email feature in Enhance? 2 VMs could be enough in this case?

If I remember well Enhance control Panel must have DNS role installed so that counts as 1 VM right?

Aliysa_Enhance

Adrien If it helps, a DNS role isn't required on the control panel server. Many people run an Enhance cluster without installing the DNS role.

Adrien

Aliysa_Enhance Oh thanks a lot. I initially thought that if I disabled the DNS server role on the control Panel it would mess up the automation.

Powie

On our plesk stack, we have 2 dedicateed DNS Servers. Located in two different RZs.
Because of the fact, that this machines are minimized, 2 CPU / 1 GB RAM, ...... no more ressources needed for 1000+ domans: Enhance overhead is more than DNS neeeds...

Maybee it's possible to use a smaller box if the DNS role only is installed...?

necrom

We went with dedicated NS nodes in London, San Fran, Bangalore.

We started off with 1 core+1G ram per node but as they do carry docker and other things they became rather CPU-bound during updates, 2 core +2G ram plays much nicer.

I'm not convinced about the Bangalore node though, the network is not as stable and I cannot stop users on the other side of the world from hitting upon it, fortunately for most TTFB is sill a much larger consideration than TTDNS.