Public DNS

Guide · Updated October 2026 · ~4 min read

Every account has its own public zone on tentnode.com, for example k7m2qx.tentnode.com. Your servers get names in it that work from anywhere on the internet. The zone is on the Public DNS page in the panel.

Public DNS is free.

Names of new servers

A new server gets a name from its VM name. The server web-1 becomes web-1.k7m2qx.tentnode.com. Upper case becomes lower case, spaces and other symbols become hyphens. If the name is taken, we add -2, -3 and so on.

The same name goes into your private zone k7m2qx.internal with the private address, see Private DNS.

A server without a public address gets the name anyway, it starts to resolve when you attach a floating IP. If you move the floating IP to another server, its names move with it. Names of a deleted server are removed.

Add a name

  1. Open Public DNS and press Add name.
  2. Type the name, for example app. Leave it empty for the zone itself, k7m2qx.tentnode.com.
  3. Pick a server. By default the name gets all public addresses of the server, IPv4 and IPv6 together. You can also pick one address.

A name can point only to your own servers, there is no field to type an address.

* is a wildcard. *.k7m2qx.tentnode.com answers for any name under the zone that you did not add yourself.

TTL is 60 seconds. A change reaches the internet within a minute.

TXT records

TXT records are for domain verification and for certificates over DNS, for example the _acme-challenge name of Let's Encrypt. Press Edit values on a name and put one value per line.

Mail records cannot be added because tentnode.com does not send mail. For mail use your own domain.

Reverse DNS

The Reverse DNS tab lists every public address of your account, including router addresses and floating IPs that are not attached. For each address you can set the name it resolves back to, the PTR record.

By default the address of a server resolves back to its name in your zone. Press the pencil to set any other name, for example mail.example.com. An empty value goes back to the default.

The Resolves back column shows if the name points to the same address. For a name in your own domain, add an A or AAAA record at your DNS provider.

Limits

An account can have 50 names in its zone. Need more? Request an increase on the Limits page in the panel.