The AirPort Extreme, AirPort Express and Time Capsule devices use the DNS Update protocol 
        combined with TSIG security for IP updates. To access your AirPort devices from everywhere regardless
        of IP changes, you can follow a few simple steps below to set up dynamic DNS updates.                
        
        
        
        
          
             
          
          
             
          
        
        
        
          
        
        
           
        
        
Hostname The third-level Dynu hostname you intend to update. It could be example.dynu.com, example.dynu.net, example.mywire.org, etc.
        
User The third-level Dynu hostname you intend to update. It could be example.dynu.com, example.dynu.net, example.mywire.org, etc.
        
Password The Shared Secret (TSIG Signature) in the MD5 algorithm. It can be obtained from from the API Credentials section of the control panel.
        
        
          
        
        
           
        
        
Hostname bonjour.yourdomain.com
        
User Your own top-level domain name you intend to update such as yourdomain.com.
        
Password The Shared Secret (TSIG Signature) in MD5 algorithm. It can be obtained from the API Credentials section of the control panel.
        
        
          
        
        
          
             
          
          
             
          
        
        
Hostname Any Dynu third-level hostname in the user account or bonjour.yourdomain.com. yourdomain.com needs to be registered in the user account. Both setups in the above screenshots work.
        
User Your Dynu username. It can be obtained from the My Account section of the control panel. Note that using the username in this field will update all the third-level hostnames and top-level domains that have an empty Location name.
        
Password The Shared Secret (TSIG Signature) in the MD5 algorithm. It can be obtained from the API Credentials section of the control panel.
        
NOTE: The router needs to be restarted if you make a configuration change and the configuratons will go into effect after the restart.
      Prerequisites
Before setting up your AirPort devices on your computer that runs AirPort utility, make sure that you have set up the below:- Purchase your own domain name and register it for DDNS service or register a free third-level hostname here.
- Sign up for membership to obtain the Shared Secret (TSIG key) in the MD5 format from the API Credentials section of the control panel.
Configuration
- Open the AirPort Utility on your computer, click on the AirPort Device then the Edit button.
- Go to the Internet tab and then click the Internet Options button.
 
           
          
           Third-level hostnames
           
          Third-level hostnames
        
         
        Hostname The third-level Dynu hostname you intend to update. It could be example.dynu.com, example.dynu.net, example.mywire.org, etc.
User The third-level Dynu hostname you intend to update. It could be example.dynu.com, example.dynu.net, example.mywire.org, etc.
Password The Shared Secret (TSIG Signature) in the MD5 algorithm. It can be obtained from from the API Credentials section of the control panel.
           Top-level domains
           
          Top-level domains
        
         
        Hostname bonjour.yourdomain.com
User Your own top-level domain name you intend to update such as yourdomain.com.
Password The Shared Secret (TSIG Signature) in MD5 algorithm. It can be obtained from the API Credentials section of the control panel.
           All hosts in a user account
           
          All hosts in a user account
        
         
           
          Hostname Any Dynu third-level hostname in the user account or bonjour.yourdomain.com. yourdomain.com needs to be registered in the user account. Both setups in the above screenshots work.
User Your Dynu username. It can be obtained from the My Account section of the control panel. Note that using the username in this field will update all the third-level hostnames and top-level domains that have an empty Location name.
Password The Shared Secret (TSIG Signature) in the MD5 algorithm. It can be obtained from the API Credentials section of the control panel.
NOTE: The router needs to be restarted if you make a configuration change and the configuratons will go into effect after the restart.
              
               
                
                
                 
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  Apple AirPort
 Apple AirPort