On Jun 29, 2012, at 13:57 , Michael Thomas <[email protected]> wrote:
> 
> Can I use service discovery from across the Internet to get back to things in 
> my home assuming that I have a registered domain?

Last login: Fri Jun 29 14:52:05 on ttys000
zephyr ~ 501$ ssh -p 22 [email protected].
Last login: Fri Jun 29 14:55:24 2012 from 
fd3a:a6fe:48b6:8b35:c1aa:9b69:17ce:fb01
zeece ~ 501$ 

I could post pictures of what it looks like when I go to configure my Time 
Capsule at home remotely from my desk in Cupertino, but that would be a waste 
of valuable IETF remailer resources.  Suffice to say it works like this:

 p1. Launch the AirPort Utility (which is used for configuring Time Capsule).

 p2. Click on "Other Base Stations" button in the upper right of the main 
window.

 p3. Choose "James's Home Time Capsule" from the pop-up menu.

 p4. A configuration window opens.  Make changes.  Click "Save" and the window 
closes.

Step p2 above starts the browse for AirPort and Time Capsule configuration 
services in the list of domains my system is automatically configured to 
search, which includes my iCloud member domain, but it could include any other 
domains.  The browse operation queries for PTR records containing names of SRV 
records, and it results in the list presented in the pop-up menu.

Step p3 above starts the locate for the chosen Time Capsule service instance.  
The locate operation queries for SRV records, as well as the A and/or AAAA 
records corresponding to the hostname part of the service resources.

Step p4 above starts parallel TCP connections to one or more of the destination 
addresses returned by the locate operation, in a sensible order and possibly in 
parallel, until one of them connects or they all fail.


--
james woodyatt <[email protected]>
member of technical staff, core os networking



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