Dynamic DNS¶
Normally, a hostname is tied to a fixed IP address. This works well if the server the hostname is used for has a static IP address. However, a static IP address is not always an option. In order to tie a hostname to a dynamic IP address, a Dynamic DNS service can be used.
Setting up a dynamic IP address¶
In the web interface, go to . In the upper right corner, click Add.
A form will now appear with the following fields:
| Field | Explanation |
|---|---|
| Enable | Enable this rule (allows turning entries off without removing them). |
| Service type | The provider of your Dynamic DNS Service. If you use one not in the list, select “Custom” or “Custom (v6)”. |
| Interface to monitor | This will usually be WAN. |
| Hostname | Enter the complete host/domain name. For example: myhost.dyndns.org |
| MX | Set this option only if you need a special MX record. Not all services support this. Note: with a dynamic DNS service you can only use a hostname, not an IP address. |
| Wildcards | Enable Wildcard |
| Verbose logging | Enable verbose logging |
| Username | Username is required for all types except Namecheap, FreeDNS and Custom Entries. |
| Password | |
| Description | A description to easily identify this rule in the overview. |
If you select “Custom” or “Custom (v6)” under “Service type”, more fields will appear:
| Field | Explanation |
|---|---|
| Interface to send update from | Most likely to be the same as “Interface to monitor”. |
| CURL options | Options passed to the curl command. These include Verify SSL peer and Force IPv4 resolving. |
| Update URL | An URL to let the Dynamic DNS provider know your IP address has changed. See the “full help” for information on how to use it. |
| Result Match | Can be used to verify the reply from the server, in order to distinguish confirmations from errors. See the “full help” for information on how to use it. |
Provider-specific info¶
| Provider | Specifics |
|---|---|
| Custom / Custom (v6) | Username and Password fields represent HTTP Basic Authentication username and passwords. |
| Duck DNS | Username field: Enter your Token. Password field: Leave empty. |
| FreeDNS (freedns.afraid.org) | Password field: Enter your “Authentication Token”. |
| he.net tunnelbroker | Hostname field: Enter your “Tunnel ID”. |
| Route 53 | Username field: Enter your “Access Key ID”. Password field: Enter your “Secret Access Key”. |