netcup wiki
Webhosting
DNS records
General information
| Record | Description |
|---|---|
| Host | Host name, e.g. - @ = Root domain - * = All subdomains not explicitly configured in the DNS (Wildcard) |
| Type | Record type, e.g. - A = A-Record (Address Record) - AAAA-Record (IPv6 Address Record) - MX = Mail Exchange Record - TXT = Text Record - CNAME = Canonical Name Record |
| MX | For the MX type, a priority is set that determines the order in which mail servers are contacted for the delivery of emails. |
| Destination | Destination of the record. |
| valid | Shows the validity of a record. |
A-Record (Address Record)
Points a domain to an IPv4 address.
AAAA-Record (IPv6 Address Record)
Points a domain to an IPv6 address.
MX = Mail Exchange Record
Indicates the mail server for a domain.
TXT = Text Record
Stores textual information (often for verification or security purposes).
CNAME = Canonical Name Record
Clones the DNS of another domain.
Manage DNS records
You can find the target addresses for the allocation in the Customer Control Panel (CCP) under the Overview tab in your web hosting product.
To customize the DNS records, go to the menu item Domains in the Customer Control Panel (CCP). Then click on the magnifying glass icon next to the desired domain and switch to the DNS tab.
Example DNS records could be as follows:
Web server
| Host | Type | Destination | Description |
|---|---|---|---|
| @ | A | 1.2.3.4 | Root domain points to the web hosting server IPv4. |
| @ | AAAA | 2001:DB8::1 | Root domain points to the web hosting server IPv6. |
Mail server
| Host | Type | Destination | Description |
|---|---|---|---|
| @ | MX (10) | mail.mydomain.de (mydomain.de is to be replaced) | Indicates how the mail server can be reached. |
| @ | MX (50) | mx1.netcup.net (mx1.netcup.net mx1.netcup.net is to be replaced with the mail server address) | Indicates how the mail server can be reached. |
| @ | TXT | v=spf1 mx a include:_spf.webhosting.systems ~all | SPF - allows emails to be sent from the server specified in the A record and in the MX record, as well as from our mail relay. This makes it possible for third parties to recognize whether the email actually comes from the domain owner. |
| key1._domainkey | CNAME | key1._domainkey.webhosting.systems | DKIM - adds a digital signature to ensure that emails have not been altered and come from the rightful sender. |
| key2._domainkey | CNAME | key2._domainkey.webhosting.systems | DKIM - adds a digital signature to ensure that emails have not been altered and come from the rightful sender. |
Web and mail server
| Host | Type | Destination | Description |
|---|---|---|---|
| * | A | 1.2.3.4 | All subdomains not defined separately point to the web hosting server IPv4. |
| * | AAAA | 2001:DB8::1 | All subdomains not defined separately point to the web hosting server IPv6. |
Both DKIM records (key1 and key2) are required for complete security.
Note that the records will only work as intended if the default DNS settings are used and emails are sent exclusively via the product's mail server. Emails sent via alternative methods such as the web server (e.g. phpmail or sendmail) or an external mail server are excluded and not valid.