DynDNS

What is Dynamic DNS?

Your IP changes. We automatically update your domain.

DynDNS applications allow you to keep a hostname updated to a dynamic IP address. You can use our free Dynamic DNS service with any of the domains managed with cosasdns.com from your customer area.

This way, you can have a small web or mail server without having to hire external services.

This will allow you to transform an IP address into a domain name and keep it constantly updated, so you only have to remember one domain.

Available clients

Windows

Available system versions:

Windows (installer) x64: Download

Windows (installer) x86: Download

Windows (zip) x64: Download

Windows (zip) x86: Download

GNU/Linux

1º Access SSH console on your OS...

We create script (.sh) to check the IP if it has changed and update record A in the domain.

touch ~/syncDynIP.sh && chmod +x ~/syncDynIP.sh && nano ~/syncDynIP.sh

We include the following code in the file:

** Note: replace the text «SECRETKEY» with your API.

#!/bin/sh
# Script: ~/syncDynIP.sh
curl 'https://dyndns.cosasdns.com/sync/SECRETKEY'

2º crontab -e

*\5 * * * * ~/syncDynIP.sh

OS X

1º Access SSH console on your OS...

We create script (.sh) to check the IP if it has changed and update record A in the domain.

touch ~/syncDynIP.sh && chmod +x ~/syncDynIP.sh && nano ~/syncDynIP.sh

We include the following code in the file:

** Note: replace the text «SECRETKEY» with your API.

#!/bin/sh
# Script: ~/syncDynIP.sh
curl 'https://dyndns.cosasdns.com/sync/SECRETKEY'

2º crontab -e

*\5 * * * * ~/syncDynIP.sh