Solved

Dynamic DNS

Posted on 1997-04-07
1
207 Views
Last Modified: 2010-03-18
I am curious about dynamic DNS.  There are 2 sites I can refernce to http://dns.nws.net and www.dyndns.com  I like the way NWS is setup and how simple it is.  I want to know where I can get the code or know how to do the Dynamic DNS serving on my Linux box.  I was told the code and information was free, but no one wants to give me the information.  I want to pop it in and get it up and running on a friennds machine.  Can you please help me???

0
Comment
Question by:cdean040797
1 Comment
 
LVL 1

Accepted Solution

by:
northwind earned 100 total points
ID: 1584330
The code is available on those sites.

Sometimes sales people makes things seems more rosy than they are.

Let me try to explain.
The client side is easy. You send a message to this site, and thats it.
The server side is a bit more complicated:
The customer must have an account at the server. The owner of the server owns a domain name. Lets say olsen.com.
Your account could be northwind. So the domain name you would "buy" as your dynamic address would be northwind.olsen.com.
Now what happenes when you log in is that olsen.com modifies his nameserver to reflect your address.
To do so he must:
1) modify his hosts table and (optional) his reverse table.
2) modify his SOA serial number
3) reload the nameserver.
The time to live must be very small, and no secondary nameservers must be involved, since they would contain incorrect data for some time, making connection impossible.

So if you want to do that, all you need is:
- a real live connection and a domain name.
- no secondary nameservers.
- scripts (I would use email) to inject the client number.
- scripts to update the nameserver forward file and
- script to reload the nameserver.
Not very complicated, but very expensive.
If you don't have a free live netconnection that is.

There is another problem though.
I am the domain responsible for a few domains. If somebody in our organisation would like to do that, I can tell you they would face a "mission very impossible". To put it simple - nobody gets near my nameservers. If they upload bogous data to the other nameservices, my mailbox will be instantly full. All 2.1GB

Not to scare you off - but you could become a very unpopular person.

Sincerely yours
Karsten Jeppesen <kj@yarc.com, northwind@earthlink.net>

0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
This video discusses moving either the default database or any database to a new volume.
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

747 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now