# Edgium panel DNS manager: review, undo and history

> How to use the Edgium panel DNS Zone: review of the value before and after saving, Undo button, change history per record and for the whole zone, and errors explained on the field.

Source: https://edgium.net/en/dashboard-dns

Leia esta página em português: https://edgium.net/painel-dns

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[Edgium](https://edgium.net/en/) / DNS panel guide

# Edgium panel DNS manager: review, undo and history

On the DNS Zone tab you manage the records of your domain when Edgium DNS is on. The screen brings safety to something so sensitive: review before saving, an Undo button, a change history and error messages that say what to fix.

All images were taken in a demo environment with fictitious data: example domains, documentation addresses and simulated traffic. The numbers illustrate how to read each screen and do not represent any customer. The panel is shown in its Portuguese interface; it is also available in English.

## In this guide

- Review before saving
- Undo
- Change history
- Errors explained
- More safeguards on the screen

Other panel guides:

- [Panel guide: sign in, navigation and new subdomain](https://edgium.net/en/dashboard)
- [Analytics and WAF logs: how to read them and what to do](https://edgium.net/en/dashboard-analytics)
- **DNS: review, undo and history** (this page)

## Review before saving

When you **edit** a record, the panel shows a review screen with the **before** and **after** values side by side, and tells you how long those who already cached the old value may keep seeing it. That depends on the record TTL. Nothing is written until you click **Confirm and save**; **Back and edit** returns to the form.

Changes that may affect email, such as MX records, get highlighted and extra warnings in the review.

![Review screen before saving a DNS record, with the before and after values side by side](https://edgium.net/assets/img/painel/13-dns-revisao-antes-depois.webp)

Review before saving: value before and after.

## Undo

After creating, editing or deleting a record, the screen shows a notice with the **Undo** button. One click returns the record to its previous values.

![Record saved notice with the Undo button](https://edgium.net/assets/img/painel/14-dns-salvo-com-desfazer.webp)

Record saved, with the Undo button.

## Change history

The clock icon on each row opens the history **of that record**. The zone **History** button opens the history of **the whole zone**, with a filter by name and by type. Each item shows whether it was **created**, **edited** or **deleted**, the value before and after, who did it and when. The **Updated at** column of the table also shows the last author.

![Window with the zone change history, with filters by name and type and each change with its value before and after](https://edgium.net/assets/img/painel/15-dns-historico.webp)

Zone change history.

## Errors explained

When something cannot be saved, the message appears **on the field that needs fixing** and says what happened, on which record and what to do. Examples: "This record already exists" or, as in the image, that an A record with that name already exists and so a CNAME cannot be created alongside it.

![Error message on the form field explaining that a CNAME cannot coexist with other record types on the same name](https://edgium.net/assets/img/painel/12-dns-erro-explicado.webp)

Error explained on the field: a CNAME does not coexist with other types.

## More safeguards on the screen

- Each save changes **only the record you touched**.
- The form shows the **full address** that will be created.
- The nameserver (NS) and SOA records of the main domain stay **protected**, with a discreet notice on the screen.

To put a site on the CDN after setting up the DNS, see the [new subdomain wizard](https://edgium.net/en/dashboard#novo-subdominio). To learn more about the Edgium DNS offer, see the [DNS](https://edgium.net/en/dns) page.

## Frequently asked questions

### Can I undo a DNS change in the panel?

Yes. After creating, editing or deleting a record, the screen shows a notice with the Undo button, which returns the record to its previous values.

### How do I see who changed a DNS record?

The clock icon on each row opens the history of that record, and the zone History button opens the whole zone, with the value before and after, who did it and when.

### Does the panel confirm before writing a DNS change?

Yes. When you edit, the panel shows a review screen with the value before and after. Nothing is written until you click Confirm and save.

## No panel account yet?

Accounts are created by the Edgium team. Tell us your domain and we will prepare your access and a trial with your site.

[Talk to Edgium](https://edgium.net/en/contact#formulario)