On 12/19/06, JT Moree <moreejt@pcxperience.com> wrote:
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Dazed_75 wrote:
> Please do not tell me about routers which support DDNS which is
> something else entirely. At least my understanding is that DDNS is
> solely for making my LAN resident servers available on the internet
> despite have only dynamic IP[s] issued by my ISP.
You are half right. Dynamic DNS is used for updating a DNS server to
have the correct IP for a specific host. This can be done by sites like
dyndns.org etc. You don't need a router that supports that.
Exactly why I said not to mention it. Perhaps I said it poorly. Basicly I don't really care about a router that supports DDNS (in fact, mine does).
But you DO need DDNS on a local level. It's the same thing. client
machine tells dns server 'this is my new ip'.
Unfortunately that assumes a running DNS server on the LAN unless the router were to have the functionality I described. People have told me it exists but I have not found one. I have to admit I do not know if the WRT54 type software for the Linksys xxxxGL modem would have it. Their docs confused me.
Unfortunately I can't give you particular software suggestions but I had
my guys do it with thin clients over 5 years ago. I think we had the
thin clients run a script after getting an IP that talked to a daemon on
the DNS server to update the records.
Our solution was home grown but I've seen the same thing mentioned with
the moniker DDNS on the net more recently. There may be some DDNS
features in the major DNS servers in use like bind, djbdns, etc.
Unfortunately they violate the criteria of no guarantee that any one of the computers is always turned on. And this seems crucial to me for all those home and small office users who really have no crying need for a server machine. This used to be rare, but is becoming more common every day.
I have thought about putting one in at my house but mostly as another toy to play with. The best real use I might have would be to act as NAS for backups. Too many toy projects for this old man.
- --
JT Morée
PC Xperience, Inc.
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