EuroDNS 2FA: how to set up an authenticator app
By the Novaz team · Updated October 29, 2026
Novaz steps checked against version 1.0.5
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Your EuroDNS account controls your domain names, and EuroDNS warns that anyone who gets into it can change your contact details and transfer those domains away (EuroDNS). Its defense is two-step verification (TSV), its name for two-factor authentication, in two forms (EuroDNS):
- Email codes. Since April 2024, EuroDNS emails you a code when you sign in. This is on by default for new accounts and for anyone who hadn't set up an app.
- Authenticator app codes (TOTP). A phone app makes the code instead. EuroDNS says this option is "activated only upon customer request", so it stays off until you turn it on.
Only one is active at a time: turning on the app switches the email codes off, and turning it off brings them back. This guide sets up the app with Authenticator App - Novaz on iPhone, but any authenticator app works the same way.
How we checked this guide: the EuroDNS steps come from EuroDNS's own blog, linked below. On October 20, 2026, eurodns.com didn't answer our automated requests, so we read archived copies of those posts on web.archive.org, saved between April and June 2026. EuroDNS's help center has a newer article on the setup, but its text only loads in a full web browser and isn't in archived copies, so we couldn't read it. We haven't tested the steps on a EuroDNS account, so a label may differ. The Novaz steps are checked against the app, version 1.0.5.
Turn on 2FA with an authenticator app
These steps come from two EuroDNS blog posts from 2014, last updated in February 2025 (EuroDNS, EuroDNS). They describe an older control panel. The client area is now called Cosmos and got a new dashboard in March 2026 (EuroDNS), so treat the labels as what to look for.
- Sign in to your EuroDNS account and click the account icon, which shows your ID number.
- Go to ACCOUNT > SECURITY > ACTIVATE TSV.
- EuroDNS shows a QR code. In Novaz, tap +, then Scan QR code, and point the camera at it. If the QR code is on the same iPhone, take a screenshot and use Choose a photo instead. See scanning a QR code on the same iPhone.
- Type the code Novaz shows and click ACTIVATE.
- EuroDNS gives you a set of 10 backup codes. Save them before you move on.
The posts don't mention a text key, the code length or how often codes change. Scan the QR code if you can, since it carries those settings to Novaz. A key typed with Enter key manually gives 6-digit codes every 30 seconds. More in What is a 2FA setup key?
If the screens look different, open EuroDNS's help article on two-step verification in Cosmos in a regular browser (EuroDNS).
Your 10 backup codes
Each backup code works once. You can make a new set of 10 at any time, which cancels the unused codes from the old set. EuroDNS suggests printing the list and keeping it safe (EuroDNS), and its help center has an article on generating them (EuroDNS).
That printed list is your safety net if your iPhone is lost and you have no Novaz backup (iCloud backup or Export to file…), or the backup is out of date. See 2FA backup codes.
When EuroDNS asks for a code
With the app turned on, EuroDNS asks for your password and then a code from the app every time you sign in (EuroDNS).
For the email codes, EuroDNS offers a trust this computer option at sign-in that skips the code on that computer for 90 days. Its post doesn't say whether the same option appears when you use an app (EuroDNS).
If EuroDNS rejects your code
EuroDNS's posts don't cover rejected app codes. The usual cause is a drifting phone clock: on your iPhone, open Settings > General > Date & Time and turn on Set Automatically. Novaz also warns you when the clock is 15 seconds or more off. Other causes are in Authenticator code not working?
Moving to a new phone
EuroDNS doesn't describe moving TSV to a new phone. Its blog does say that turning the app option off puts the account back on email codes. So while you still have the old phone, turn the app off, then set it up again and scan the QR code with the new iPhone. If you have a Novaz iCloud backup or backup file, you can restore it on the new iPhone instead and skip this. See How to transfer your authenticator app to a new iPhone.
If you lose your authenticator
Sign in with a backup code: EuroDNS presents them as the way in when your phone isn't with you (EuroDNS). Then set up the app again on your new phone and make a fresh set of codes.
If you have no backup codes left, the EuroDNS pages we could read don't describe a recovery process, what proof EuroDNS asks for, or how long it takes. Your route is EuroDNS support, through its help center (EuroDNS). More in Lost the phone with your authenticator app?
Turning the app off
EuroDNS doesn't leave your account with a password alone: when you turn off the app option, email codes switch back on (EuroDNS). Its posts don't say where the off switch is in Cosmos. After you've turned it off, open EuroDNS in Novaz and tap Remove account.
