[CUWiN-Dev] dynamic-dns update clients?

[Stephane Alnet]

> Today I searched unsuccessfully for a "universal" client for dynamic
> DNS services.  Is there any such thing?  I need your help to find it.
> It looks like there are lots of services---dyndns.org, noip.com, et
> cetera---and no client updates them all.

I use ddclient[1] under Linux for dyndns and I've never had to worry 
about it. It supports (copy & pasted from the doc):
   DynDNS.org - See http://www.dyndns.org for details on obtaining a 
free account.
   Hammernode - See http://www.hn.org for details on obtaining a free 
account.
   Zoneedit   - See http://www.zoneedit.com for details.
   EasyDNS    - See http://www.easydns.com for details.

[1] http://ddclient.sourceforge.net/

[Also, dyndns actually covers 46 domains: 
http://www.dyndns.org/services/dns/dyndns/domains.html ]

At least in the case of dyndns, the updates are done by accessing their 
website and having the automated tool 'submit' the page in place of the 
user.

> BIND comes with a gigantic nsupdate utility that implements the
> IETF-blessed way of updating DNS.  Alas, none of the popular services
> seems to use the standard method.

Probably because it requires to implement a key-based encryption system 
and the assumption is that the regular lambda-user wouldn't know how to 
properly handle that stuff. (Since I've never dared implementing this, 
I completely understand the feeling.)

To answer your question: I don't know of an universal "dynamic DNS" 
client (probably because most people only use _one_ service on any 
given host). But before we even answer that question, what do you need 
that ''dynamic DNS'' for in the first place? (Remember that in the case 
of dyndns et al., you don't own nor control the domains or names you 
are using.) In other words, what are your requirements?

S.