Hi guys,

As part of my learning, I've set up a linux box at home (CentOS) on my cable modem connection.

I have a linksys cable/dsl router, and for now what I've done is assigned the box a static internal IP, and then on my Linksys router I set up port forwarding to send ssh, pop, smtp, etc.. port requests to that IP (probably there is a better way?)

I'm able to SSH into my box. Mail in/out is not working ("sender verify failed errors") but I'm sure that's another project and related to the fact that the domain name I named this server isn't really pointing there yet...

.. but this is what I want to change.

I want to learn DNS/BIND, etc.. and set up my domain name my server, either by having it serve it's own DNS or by creating a zone file at registerfly where the domain is registered.


The MAIN issue right now is how do I do any of this since my cable modem IP address is not static and keeps changing?

I have a free DynDNS.org account, and I have a host name with them that resolves that host name to the IP address of my cable modem (via a Windows based PC on my home network that updates DynDNS using update software)

But that doesn't help me since it only redirects using the dyndns subdomain assigned to me.

For example, if I want to set up a DNS Zone with registerfly so that it points my domain to my server... I need to know my actual IP, and since this changes often...


Any ideas or advice?


Thanks
Nathalie

well i'd just say don't do it... you can get free dns hosting at sites like zoneedit.com and just hold your dns there. what you could do if you really wanted was use the dyndns account as the name server only. so you run the dyndns client on the box and update that ip on change, and so the dns server's ip changes which is fine, and your own bind is then reached, you do not need an ip address for this, a domain name is officially fine. note though that this can still cause lots of problems in theory as it may still take time for dns changes to propagate the internet and for caches to timeout, but i would expect that dyndns serve fairly short ttl's on their dns anyway to help this...

Google search for dyndns linux router shows many links. Here are few. See if they help. If not check for others on google.
http://www.linuxhomenetworking.com/w..._:_Dynamic_DNS
http://joesbitbucket.blogspot.com/search/label/Linux

Brian

Have you considered registering domain through DynDNS? You can do this through their Custom DNS options in services. Think they charge $40/year or something.

Have you contacted your ISP about getting a static IP?

This isn't that bad, especially if you use the zone file editing tools provided by your domain name registrar.

What you do is you setup CNAME records to point to your dyndns domain name. Say you buy a domain called "mydomain.com" and your dyndns domain is "dyndomain.dyndns.org". Here is what it would look like:

Thansk Chort!

That seems to be working!


Nat