[mirror-admin] MM & dynamic DNS behind NAT?

[Axel Thimm]

Hi,

On Mon, Jun 29, 2009 at 12:12:24PM -0600, Dax Kelson wrote:
> > is there a way to use MM for a non-static IP like a typical home
> > network?
> 
> The features that my technique provided with Fedora 10 and below cannot
> be done with Fedora 11 and mirror manager. Namely a fully automated, no
> client changes, dynamic or static address support, works 100% of the
> time, transparent automatic local mirror.

:(

> To regain that functionality there will need to be code added to yum to
> support "automatic local mirror detection" and have that code must be
> turned on by default.
> 
> Yum could take a hint from what IE and Firefox do to automatically find
> a local mirror.
> 
> http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol

I like the idea of a yum mirror that is thrown into the network and
the network just does the right thing. Even though the canonical thing
would be to register the mirror to MM and then wait for the
information to propagate to the clients, sometimes you just want to
jumpstart a network with a mirror on your laptop, or simply install a
system in a client's network by just attaching the same laptop.

> Last week I was talking to Matt Domsch and he is going to add a feature
> to Mirror Manager that lets a DNS hostname be specified. Using a dynamic
> DNS service/solution will get you close (but no cigar) to functionality
> provided by my technique. This missing part is the "works 100% of the
> time" piece. MM will only check the hostname to IP mapping at the top of
> each hour and depending on timing of dynamic IP changes you will have
> unpredictable times when your local mirror will not be used.

This is a step forward and will save a lot of dynamic home IP
setups. But the autodetection method would be a great addon to yum and
yum based code. I wish I could spare some cycles to follow up on that.

Thanks for explaining the current status and perspectives!
-- 
Axel.Thimm at ATrpms.net
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