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Dynamic DNS Option For server only mode

Kingnubian

Dynamic DNS Option For server only mode
« on: June 15, 2003, 08:59:12 AM »
In server only mode it would be very appreciated and usefull if Dynamic DNS, eg. dyndns.org ect, be available without having to go and toy around with a third party script. I have installed a few SME boxes in server only mode which stay on 24/7 as opposed to the other machines on the network. Why is it that DYNDNS simplicity is reserved for server/gateway mode only. Please make this option and configuration available in any server mode the user wished to use.


Kingnubian

Re: Dynamic DNS Option For server only mode
« Reply #2 on: June 16, 2003, 09:26:08 AM »
I and a few of my clients do not use SME as a gateway and prefer to use a Hardware router.  If , for example, on a small network (<10 machines) , the server is to be left on so webmail can be accessed at any time or even VPN connections are made after hours. In this case the server is left up and the necessary ports are fowarded through the router.  

This functionality , at  least the possibility of this, would be a welcomed addition. It would add definitely to the server's flexibility.

BTW, some hardware routers do support DYNDNS services but they are few. Dynamic DNS applets abound in the Windows world for anyone who wishes to use them as I am sure everyone knows.

Gordon Rowell

Re: Dynamic DNS Option For server only mode
« Reply #3 on: June 16, 2003, 06:57:25 PM »
Kingnubian wrote:
>
> I and a few of my clients do not use SME as a gateway and
> prefer to use a Hardware router.  If , for example, on a
> small network (<10 machines) , the server is to be left on so
> webmail can be accessed at any time or even VPN connections
> are made after hours. In this case the server is left up and
> the necessary ports are fowarded through the router.

The point still remains that dynamic DNS may not work in
this configuration as the internal box may not know the real
address of the external interface. Some dyndns providers
handle the un-NATing, but not all.

> This functionality , at  least the possibility of this, would
> be a welcomed addition. It would add definitely to the
> server's flexibility.

Well, the scripts are there. All you need to do is enable them in
the configuration database. Or you could run the server in
server-gateway mode behind your hardware box, providing a
second layer of filtering.

> BTW, some hardware routers do support DYNDNS services but
> they are few. Dynamic DNS applets abound in the Windows world
> for anyone who wishes to use them as I am sure everyone knows.

This is one of the reasons why the small "hardware" routers
are often not the best choice for other than home deployments.

Gordon

Scott

Re: Dynamic DNS Option For server only mode
« Reply #4 on: August 27, 2003, 08:23:55 AM »
Gordon Wrote:

>>>The point still remains that dynamic DNS may not work in
>>>this configuration as the internal box may not know the real
>>>address of the external interface. Some dyndns providers
>>>handle the un-NATing, but not all.

The smart dns providers like DynDns.org have a webpage
that the program hits. This webpage when activated checks
the ip address which is always the router ip and not the
server ip. So as long as the script is pointing to that particular
url, it will always provide the global ip address for updating the
dyn dns.

I used dyn dns for a short time, now I'm using a static ip.

Scott